Salinity: 35.9301 PSU, Conditions: sunny, no clouds, small waves
Science and Technology Log
There are several ways data is collected for the SEAMAP Reef Fish Survey in order to have a more complete understanding of the reef system. One of them is fishing with vertical long lines with Bandit reels. We are fishing for snapper species (Lutjanus sp.), grouper species (Serranidae sp.), and certain species of amberjack (Seriola sp.). There are three reels mounted on the vessel’s starboard side. The fishing works by dropping a weighted line with ten mackerel-baited hooks per reel, which then ends with an orange float. The boat is kept as still as possible and we wait a designated period of time before reeling up the lines.
I fished with deckhand James and Texas A&M graduate student, Jillian. The other lines were fished by NOAA scientists Joey, Kevin, John, and other deckhands. Our first try we caught two large spinner (Carcharhinus brevipinna) sharks that escaped back to sea. The other lines caught smaller sharks and a couple red snappers. We ended up catching and returning six sharks.
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Even though we were not aiming to catch sharks, they are part of the ecosystem and the data is collected. The data is written down on paper first and then transferred to computer databases. Some of the sharks required wrangling and less data was collected before releasing them live to prevent harm to shark and people.
The red snappers were weighed, measured in different ways, sexed, the sexual development was determined, and then retained, meaning we kept the fish. The otoliths (ear bones) and gonads (reproductive parts) were also weighed, labeled with an unique bar code, and stored for later analysis down at the Panama City Lab.
Determining variability of fish ages is possible due to this important work. Otoliths work similar to aging tree rings. Under a microscope you can clearly read each year. By comparing fish size to gonads, it has been determined a thirty-year-old red snapper can produce more eggs than 30 one year old red snappers. It is easy to see the research conducted on NOAA Ship Pisces is vital to managing and protecting our nation’s seafood supply.
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Personal Log
The movement aboard a ship this size is different than smaller vessels I’ve been on such as a ferry, lobster boat, and other research vessels. Right now we are expecting to not work Thursday due to high seas and wind. The NOAA Ship Pisces’s 208 feet sways in every direction-up, down, all around. The adjustment period for acclimating to this unpredictable movement is referred to as, “getting your sealegs.” This is also an apt metaphor for my time adapting to life on board.
Other than research protocols, Teachers at Sea need to learn what to do in case of emergencies. The science staff, including myself, received a safety briefing before leaving port. Each person is assigned a muster station where they are to report if there is a Fire or Man Overboard. A separate location is assigned for Abandon Ship. Each emergency has a designated series of short or long horn blasts from the ship so it is clear to all what is happening.
It’s Gumby suit time!
Later, the whole ship drilled Abandon Ship. As fast as possible, we each carried our personal flotation device (PFD) and survival suit (referred to as a Gumby suit) to our life raft station. I then practiced how to get the suit on in less than a minute.
Did You Know?
As a New Englander, I talk faster than most people on NOAA Ship Pisces, whose home port is Pascagoula, Mississippi.
There are a lot of oil rigs in the Gulf of Mexico. We have not seen any other vessels out here, but can often see a half dozen rigs at a time. In fact, NOAA Ship Pisces was recognized for, “outstanding and successful emergency mobilization by providing acoustic monitoring survey operations under hazardous and arduous navigation conditions in support of the Deepwater Horizon Oil Spill recovery efforts.”
Oil rigs in sight as equipment is brought back aboard.
NOAA Teacher at Sea Leah Johnson Aboard NOAA Ship Pisces July 21 – August 3, 2015
Mission: Southeast Fishery – Independent Survey Geographical Area of Cruise: Atlantic Ocean, Southeastern U.S. Coast Date: Sunday, July 26, 2015
Weather Data from the Bridge: Time 12:38 PM
Latitude 34.24389
Longitude -76.6625
Water Temperature 23.75 °C
Salinity –No Data-
Air Temperature 28.6 °C
Relative Humidity 68 %
Wind Speed 12.6 knots
Wind Direction 67.01 degrees
Air Pressure 1014.8 mbar
Science and Technology Log: The primary purpose of this cruise is to survey reef fish. Our main task is to collect data pertaining to presence and number of fish species, species length frequency, and sample materials for fish age and growth. However, other types of measurements are being made as well. For example, the CTD is an instrument that measures different properties of ocean water with depth. It is deployed every time the fish traps are dropped.
The CTD sits on the starboard side of the deck of NOAA Ship Pisces.
The acronym “CTD” stand for conductivity, temperature, and depth. The instruments that measure these properties are affixed to a metal cylinder called a rosette. A range of sensors can be attached depending on what needs to be measured. Additionally, containers can be attached to the frame in order to collect sea water samples at different depths. When the ship reaches the designated coordinates, the survey technician calls to the deckhands and instructs them to use the winch to lower the CTD to a designated depth, and then haul it back up.
Deckhands assist with lowering the CTD.
Below you can see a graph of the data collected earlier in the week:
CTD Data
The y-axis represents depth in meters. The CTD actually measures water pressure, which is then converted to depth. Pressure and depth are directly related: as depth increases, pressure increases.
There are several different properties represented on the x-axes, shown in different colors:
light green = oxygen (mg/l)
orange = conductivity (S/m)
dark green = temperature (°C)
purple = salinity (PSU, or ppt)
What do these measurements mean? As depth increases, temperature decreases. Sunlight warms the sea surface, and wind and ocean currents distribute this heat energy throughout the upper waters. Beneath this mixed layer, temperature decreases steadily with depth. In deeper water (not at this location), this rate of change decreases and the temperature of deep ocean water is nearly a constant 3 °C. Salinity refers to the concentration of dissolved salts in the water. Average ocean salinity is 35 ppt (parts per thousand), though this varies by a few parts per thousand near the surface. Increased precipitation, runoff, or melting of sea ice can decrease salinity, and evaporation and ice formation can increase salinity. Conductivity (measured in Siemens per meter) is a measure of how much current can travel through the water, and this is affected by both salinity and temperature. Finally, fish and other marine organisms require dissolved oxygen to breathe. By measuring the amount of oxygen at different levels in the water column, we can determine how much sea life can be supported in a given area. Dissolved oxygen in the ocean comes from mixing at the surface, and is also produced by photosynthetic organisms. As temperature and salinity increase, dissolved oxygen levels decrease. Additionally, temperature and salinity data can be used to determine the water density, or the mass of water per unit volume. Different fish can tolerate certain ranges of all of these chemical and physical parameters.
With respect to the fish survey, this information is important because we can monitor the conditions of the water near the ocean floor where the traps are located. For scientists who are interested in characterizing reef fish habitat, this data is a critical component of their research.
There are other ways in which this data can be used. The depth profiles of each of the chemical and physical properties at a given site can be compared to other local sites in order to identify any spatial anomalies. This is of great interest for seafloor mapping and ocean exploration cruises. For example, a change in conductivity and temperature at a site in the middle of the ocean could indicate the presence of a hydrothermal vent. Or, a decrease in salinity in a region along a coastline could indicate freshwater runoff.
Additionally, as measurements are made at similar locations over a period of time, temporal changes may be observed. This could reveal seasonal changes, or a long-term trend. Because we are observing an increase in average global temperatures and experiencing global climate change, it is critical to collect data that can be used to assess changing ocean conditions.
Personal Log: “Will you be eating a lot of fish on the ship?” I heard this question a lot before I left for this cruise. I wondered myself. It seemed reasonable that fish would be prepared for meals because, well, we will be living at sea! On the other hand, I wondered if everyone on board would be sick to death of fish because we would be looking at them all day. As it turns out, fish is prepared for nearly every meal; however, there is often another meat option, as well as a variety of other non-meat dishes. Now we know!
Ship mess
Did You Know? There are many fish that make a grunting sound. When we have tubs full of tomtates in the wet lab, it sounds like a bunch of miniature pigs making snorting noises!
Still from video of tomtates near a trap. A nurse shark can be seen in the background.
Geographical Area of Cruise: Gulf of Mexico
Mission:SEAMAP Reef Fish SurveyDate: June 1, 2014
Observational Data:
Latitude: 27˚ 50.503 N
Longitude: 93˚ 46.791 W
Air Temp: 26.3˚C (79.3˚F)
Water Temp: 23.3˚C (73.9˚F)
Ocean Depth: 126.8 m (416 ft.)
Relative Humidity: 84%
Wind Speed: 7.8 kts (9.0 mph)
Barometer: 1,009.5 hPa (1,009.5 mbar)
Science and Technology Log:
It was not until the Pisces arrived at its first survey area off the coast of Texas that I was able to appreciate the volume of scientific data collection that this vessel could collect. It took most of the 27th and all of the 28th to arrive at our initial survey area. While in transit, the Pisces is constantly collecting data. Data such as air temperature, wind direction, relative humidity, wind speed, and barometric pressure are recorded and periodically reported back to NOAA and the National Weather Service and from other marine vessels to improve data on meteorological events in the Gulf and weather forecasts.
In addition to collecting meteorological data, the Pisces uses a fishery acoustics system called the ER-60 to track depth and various sea floor features. This system can also be used to monitor biomass such as fish, coral, and even plankton. Once we arrived at our initial survey area within the SEAMAP survey grid, the amount of science conducted increased dramatically. In the survey areas, the camera array is dropped to the sea floor to survey fish populations. In most cases we are looking at fish habitat from 50 to 120 m deep. Video and still photos are taken of fish attracted to the bait bag filled with squid. To ensure that sampling is both consistent and unbiased for the survey, pictures and video are pulled at random from all four cameras on the camera array. It is important that the same procedures are carried out throughout the SEAMAP survey gird concerning data collection in order to be able to reliably compare different survey areas and track species development and abundance.
In order to assist the camera array in obtaining accurate information about precisely how deep the camera array is when it is recording fish population data, a Temperature Depth Recorder or TDR is attached to the camera array to compare position in the water column to what the ship’s fishery acoustics system is displaying. This is necessary in case the camera array has fallen off an underwater cliff or is hung up on some other topographic feature.
The Conductivity Temperature and Depth or CTD submersible probe can measure the salinity of the water, temperature, pressure, plankton concentrations, dissolved gases, and water samples at different depths.
The Conductivity Temperature and Depth submersible aids the ship’s acoustic equipment in determining an accurate depth of the ocean bottom. Since sound travels at different velocities in water that has different densities and temperatures, information regarding the salinity and temperature of the water must be fed into the ship’s fishery acoustics system to calibrate the system for it to accurately read the bottom depths. If temperature or salinity are not taken into account, the depth will either be too shallow or too deep compared to the true value.
The Pisces not only has the ER-60 for fishery acoustics, but it also has a state of-the-art multi-beam echo sounder, the ME-70, that has 27 transducers that are aligned in a configuration allowing for scans of wide swaths of the ocean bottom. In fact, the Pisces has engines that are specifically designed to run quietly enough to accommodate such advanced acoustic equipment. The ME-70 is used for mapping various sample areas of the SEAMAP survey.
While the camera array can be used to measure the length of some of the fish viewed, it cannot reliably determine characteristics such as age or sex. Determining age or sex just through appearance can be very tricky in the Gulf and is frequently unreliable. Many species of fish will grow at different rates depending on available forage and other environmental factors. This is an issue that is also commonly encountered among freshwater fish in South Dakota. Complicating fish characteristics even further, many reef fish are one or the other sex at different phases of their lives. They are not strictly male or female but change roles depending on complex physical or environmental factors. With so many factors complicating these characteristics, live catches are necessary to determine the full story of what is going on with reef fish in the Gulf.
For live catches we use bandit reels. Bandit reels are similar in concept to a standard fishing rod and reel except they are built for heavy duty sea fishing. The reel and rod are attached to the side of the ship. One hundred pound test line is used with a five pound sinker weight. Each line for the bandit reels has ten hooks, a small float that keeps the hooks in a vertical column, and a large float that keeps the ten hooks just above the ocean bottom.
Again, in order to guard against bias in the results, we use the bandit reels with a set procedure. For our survey we are using three bandit reels at a time each with ten hooks. The bandit reel stations are in radio communication with the dry lab, where the chief scientist is coordinating the sampling, and the bridge, which is keeping the ship in position for the lines preventing lines from running under the ship. Since we want to be as objective as possible without contributing to any type of bias in the sampling, each line was in the water for exactly five minutes. Even though it may have went against every natural inclination of most fishermen and fisherwomen, we were not allowed to jig our lines or do anything that might attract more fish to our bait. In addition to standardizing the number of hooks and the length of time spent fishing, three different sizes of hooks are used and rotated out from each bandit reel station; consequently, one of each of the three hook sizes is always being used for each survey area.
White, nickel-sized disk-like structures called otoliths can reliably age fish. They are inner ear structures that grow in size as a fish ages allowing calcium carbonate deposits to form over the course of its life. Scientists can read these calcium carbonate deposit rings like rings in a tree to determine the age of the fish. Credit Harriet Nash for the photo.After all the measurements are taken of the fish and their otoliths and gonads have been sampled, the information must be added to the database for use in the SEAMAP Survey. Credit Adam Pollack for the photo.
After five minutes of fishing, the lines are brought up and fish are tagged one through ten to keep fish identified with a specific hook and depth. The tagged fish are then taken to the wet lab for measurement readings. In the wet lab, fish length, weight, sex, and phase of reproductive development are recorded. Since reproductive development, and sometimes even sex, can be difficult to determine, a sample of each fish’s gonads (ovaries or testes) are removed and placed in a labeled specimen vial for confirmation in the lab back on land. The otoliths (inner ear bones) are removed from the fish, as well, in order to reliably age the fish back in the lab. Once the measurements are recorded, they need to be added to the database to be compiled with the gonad and otolith specimens. This is just a small piece of the monitoring that is occurring in the Gulf through NOAA. The Gulf of Mexico is a remarkably diverse expanse of ocean and requires significant scientific research in order to understand and track fish populations and the habitat and forage that sustain them. Without these types of intensive scientific studies on the ocean, we could not possibly manage or attempt to conserve a natural resource that we would, otherwise, have little to no understanding of.
Personal Log:
Since we had arrived off the coast of Texas a couple of days ago, we have been slowly back tracking to Pascagoula as we go through our survey areas. The weather has been beautiful the last couple of days; however, sea swells do cause the boat to jostle around a bit. Each day we see more species on the surface of the water and through our camera array under the water. Since the science log is rather long for this post, I will talk more about life at sea and the different types of organisms we are encountering in future posts.
Did You Know?
Fish identification can be a tricky business in the Gulf of Mexico. Many species of Gulf fish alter their physical appearance depending on their reproductive development, environmental factors, or phase of physical development. Fish will even appear to have different patterns depending on whether they are viewed under our out of water.
This is the aftermath of a fire early Sunday morning that destroyed most of the high school in Hoven. My classroom is in the lower left of this picture. Credit Jill Cody for the photo
I see the pictures, the video, and the news stories, and it is still hard to accept the reality of what happened Sunday morning. For those of you who are not familiar with my town and the events surrounding it, our community suffered a great loss over the weekend by losing much of the high school to a fire. Since I was on vacation when it happened and had to leave directly from that to the Pisces, I never saw the fire or the resulting damage, and I suppose reality will finally sink in three weeks from now when I see my school and classroom in person to see what science materials and equipment is salvageable. My sympathies to those affected by this tragedy. However, I am heartened by my community’s initial response of determination to rebuild our school and to continue our tradition of offering high quality education to rural South Dakota. Though the future remains uncertain, I stand with those who support saving our school district and will be there to help see this transition through. I will proceed with the NOAA Teacher at Sea program while keeping in mind that I am now helping move forward the recovery from this tragedy by advancing and enhancing the future of science education in Hoven and beyond.
Back in the Gulf, I flew into Gulfport, Mississippi, on Monday, May 26, and took a taxi to the Pisces in Pascagoula, Mississippi. By chance I met a crewmember who noticed the NOAA Teacher at Sea t-shirt I was wearing at the airport. He too had flown in on the same plane that I had from Atlanta. He was very interesting to talk to learn about many of the diverse backgrounds needed to operate a ship like the Pisces. In our conversation he had talked about why he joined NOAA and some of his past work that had given him the experience necessary for the job. Since he is a crewmember on the deck crew, experience at sea and ship operations is a necessity. The crew allows for day-to-day operations, ensures safety of the ship and the passengers, and assists with the research in its logistics and implementation where necessary. The crewmember I talked to had extensive experience working at sea on cargo ships and looked forward to his future work with NOAA and was very interested in all the science that the Pisces carries out. In general, the crew can be divided up into the following categories: deck crew, officers, stewards, technicians, and engineering. The deck crew carries out the implementation of operations and day-to-day maintenance of the decks. The officers are members of the NOAA Corps, one of seven uniformed services of the United States. The stewards maintain the galley (kitchen) and mess (dining room) providing meals to everyone on the Pisces. The technicians process data and maintain data collection systems and other electronics. Engineering operates and maintains the ship’s engines, equipment, and various electrical and operational systems. Whether it is the deck crew, officers, stewards, technicians, or engineering, all are needed to make the science carried out by the science party possible.
A picture of me on the top deck of the Pisces as we leave Pascagoula, Mississippi, for the Flower Gardens off the coast of Texas. The USS America is in the background. Credit Harriet Nash for the photo.
I arrived at the Pisces during the afternoon on the 26th. This was very helpful in giving me some time to explore the area in Pascagoula and the ship before takeoff the next day. I was assigned a very nice stateroom that I am sharing with another member of the science party. I was surprised that our accommodations were so spacious. We get our own desk, tv, sink, bathroom, and shower. It reminded me of living in the college dorm my freshman year minus the group showers; so, I was more than pleased with the living arrangements. Looking around Pascagoula directly adjacent to where the Pisces was docked, I was amazed at all of the heavy industry concentrated around the Pascagoula River. The river hummed with activity day and night with trains, cargo ships, tugboats, oil and gas well repair work, ship repair work, fishing operations, and tourism. It was quite remarkable to see where some of the goods that we buy in stores back in South Dakota first make their landing on the North American continent and to get a sense of the scale of the sea-based operations needed to make international trade possible. The ocean is how you are able to sell your beans to Brazil or wheat to China. It is the economical lifeblood that connects all of us, but we seldom think of what happens to our goods beyond the retail store or the elevator. We just know the system works and take the infrastructure behind it for granted. Though South Dakota is more than a thousand miles from the Gulf of Mexico, it is linked by trade with the rest of the world through the Gulf.
The NOAA ship Pisces is a state-of-the art research vessel. Even when in transit to a specific operational location, it is always recording data and making observations of the ocean and the atmosphere.
Onboard the ship I was able to explore the different decks. The Pisces is a large ship, but it is not until you move around on the decks that you realize how much space is needed to carry out all of the diverse series of scientific operations. The Pisces is equipped with a hydraulic crane with the ability to lift 10,000 pounds, which is needed to raise and lower science equipment and remove and replace the gangway, the walkway needed to board and get off the ship while it is docked. The ship also has a giant spool called a net reel where they store the fishing nets used for trawling missions and a series of winches with thousands of feet of wire to lower scientific instruments into the depths of the ocean. Even when the Pisces is not carrying out any specific operations while in transit to an operation point, the ship is utilizing every opportunity to gather data on the ocean and the atmosphere. The Pisces is specifically designed to run quietly to allow for state-of-the-art acoustic sensors to gather information on topographic features of the bottom and even information on various types of biomass in the water column such as fish, plankton, and the different types of coral on the ocean bottom. The ship is also always taking meteorological readings for scientific use, calibration, and navigation. Wind speed, wind direction, relative humidity, water temperature, barometric pressure are just some of the observations that are constantly being compiled; therefore, even in the dead of night in our transit, the Pisces is carrying out valuable scientific research and monitoring.
Science and Technology Log:
We are enroute to the Flower Gardens, one of the northern most reef forming corals in the world. In fact, the Flower Gardens were not officially documented to have extensive coral reefs until the early 1960s when researchers started to investigate rumors of coral reefs in the northern Gulf of Mexico. What research divers found was amazing: a pristine coral reef not touched by poaching or pollution. We are scheduled to arrive at the reefs this evening, May 28. We will begin the fish surveys using the camera array and bandit reels tomorrow, as well, to document fish populations among the coral reef structures.
One means of surveying fish abundance and size is using this submersible camera array. It is equipped with four cameras that are used for random sampling for survey data. The array is fitted with a bait bag filled with squid in order to attract fish such as grouper and snapper.
Did you know?
The world’s coral reefs contain a remarkably rich and diverse multitude of life, yet they are threatened by poaching, pollution, disease, invasive species, and increasing ocean temperatures and acidity.
Geographical Area of the Cruise: along the continental shelf edge off the coast of Louisiana
Date: May 9, 2014
Personal Log:
Pole of inaccessibility…I admit I was shocked to see that South Dakota claimed such a dubious geographical title in a recent issue of National Geographic. South Dakota is technically not the geographical center of North America; that title goes to North Dakota. South Dakota, however, does carry the rather obscure title of being a pole of inaccessibility for the North American continent, the point farthest from all North American shorelines. Basically, if you live in South Dakota, you live at least 1,000 miles from a coast…any coast! Perhaps our isolation from the ocean is more than a physical measurement on a map. How often do South Dakotans think of living on an ocean planet? Indeed, our perception of the world is seemingly skewed considering we live smack in the middle of that 30% we call land. Living in South Dakota, it is easy to forget about the ocean and its impact on our daily lives. We live as far from it as one can in North America; yet, we are inseparably bound to it. The seafood you eat, the nearly subconscious purchases of foreign goods you make, the moisture we receive, the crops you sell, and even a large portion of the air that we breathe link us all to the ocean’s central value in our lives; therefore, understanding the ocean and the ocean sciences is vital to our daily lives even to landlocked South Dakotans.
South Dakota, a sea of former and current grassland! (Credit Spencer Cody for photo)
Here is where the National Oceanic and Atmospheric Administration and the Teacher at Sea program come into play. It has become obvious to me since my selection as a Teacher at Sea that very few people in this region associate NOAA with ocean research. They seem to know that NOAA plays a role in researching the atmosphere such as working with the National Weather Service to forecast storms, but they never make a connection to the ocean even if it is the second word in NOAA’s namesake.
It is understandable that South Dakotans in general would assume this because the only exposure we have to NOAA in this part of the country deals with storm and weather forecasting. In reality NOAA operates a fleet of ocean research vessels that cover the expanse of U.S. waters and beyond in order to increase our understanding of what we really have in our oceans and how it all interacts with each of its differing component parts. Also, NOAA has its own uniformed service called the NOAA Corps, which keeps the fleet operational and aids and assists in ocean research. My goals as a Teacher at Sea are twofold: connecting NOAA’s oceanic and atmospheric work to the classroom and connecting students to the education and training-related pathways that could potentially lead to NOAA careers. Essentially, I am to learn and document as much as I can on my cruise and use this experience to enhance the education of my students and to provide access to possible careers in oceanic and atmospheric work through NOAA. I am greatly thankful and humbled to receive such an opportunity through the NOAA Teacher at Sea program. This is truly a great opportunity for learning for both me and my school.
I enjoy geology, paleontology, and many other sciences. It is probably a safe guess that a large dinosaur left this track behind.
More about me…I will be starting my ninth year of teaching in Hoven this August. I teach 7-12 science: Earth, Life, Physical, Biology, Biology II, Chemistry, and Physics. I enjoy teaching all of the varied sciences. It is hard to get bored when you teach everything. Hoven is a very nice town to live and teach in. It reminds me a lot of growing up in Veblen, another small, rural South Dakota town. I have always been an advocate for rural education and strongly believe that small schools like Hoven offer an exceptional learning environment for students.
Unfortunately, I will have to leave my wife, Jill, and my daughters, Teagan and Temperance, behind for a few weeks. I will miss them, but also realize that my four-year old daughter being present on a research vessel would make any productive research almost impossible. She is very rambunctious.
I am counting down the days until I fly out on the 26th to Pascagoula, Mississippi, where the Pisces will be leaving and returning after the mission is completed. I am very excited about the research involved in my upcoming mission. Researching fish species abundances associated with the topography of the Gulf of Mexico has so many implications because our mission is just a small piece of a giant survey puzzle that includes nearly the entire edge of the North American shelf in the Gulf of Mexico. Ships in the survey area have been using many innovative ways of monitoring reef fish abundance. I look forward to learning more about this technology and will report more on the subject once I am underway. For more information about the Pisces, visit the Pisces homepage or track our movements using the NOAA ship tracker.
My wife and two kids on vacation at Isle Royale National Park in the middle of Lake Superior.
NOAA Teacher at Sea Jennifer Petro Aboard NOAA Ship Pisces July 1 — 14, 2013
Mission: Marine Protected Area Surveys Geographic area of cruise: Southern Atlantic Date: July 7, 2013
Weather Data Air temperature: 27.°C (81.5°F)
Barometer: 1022.50 mb
Humidity: 73%
Wind direction: 195°
Wind speed: 6.1 knots
Water temp: 26.6° C (79.3°F)
Latitude: 34 44.62 N
Longitude: 75 91.98 W
Science and Technology Log
Today we find ourselves off of the coast of northern North Carolina where we will be for the next few days. An exciting aspect about this cruise is that we will be multi-beam mapping (a blog about that very soon) and sending the ROV down for surveys in new areas off of North Carolina. For the past few days I have been working with the team from the Panama City Southeast Fisheries Science Center identifying fish. This can sometimes be a very difficult prospect when the ROV is flying over the fish at 2 knots. The team from SEFSC consists of Andy David, Stacey Harter and Heather Moe. David is a 23 year veteran of NOAA and has been working on the MPA project since 2004. Stacey has been working on this project since its inception as well. Heather is new to the team and is just coming off of a 1 year assignment with the NOAA Corps at the South Pole.
There are several major objectives of this survey cruise.
There are several major objectives of this survey cruise.
(1) To survey established MPAs to collect data to compare to previous years’ surveys.
An important aspect of these cruises is to establish the effectiveness of an MPA. In some MPAs there is usually no fishing allowed. This includes trolling. bottom fishing (hook and line) as well as all commercial methods of fishing. The MPAs we are studying are Type II MPAs where trolling is permitted. They are looking for seven specific target species.
According to Andy, these species have been chosen due to their commercial value. During each dive a record is taken as to the type of species seen. We are specifically looking for the target species but we are keeping track of ALL the species that we see. I think it is fantastic to see scientists get excited about seeing something new. So far we have seen Oceanic Sunfish (2), Redband Parrotfish, Tautog (a more northerly found fish), Longsnout Butterflyfish and one fish species that we have not identified yet. There is an emphasis on Lionfish counts to assist in gauging how the introduction of this invasive species is affecting the overall fish populations. In some areas the Lionfish numbers have increased dramatically over the years. Today we actually saw one try to eat a smaller fish! They are very abundant in some locations and not in others but they have been present in 95% of our dives.
A Speckled Hind seen inside the North Florida MPA.A Warsaw Grouper seen inside the North Florida MPA.Stacey Harter, LT JG Heather Moe and I watching the big monitor and calling out the fish that we are seeing to be recorded.
(2) Survey outside of the MPAs.
You may ask “Why survey outside the area?” We want to know if the MPAs are indeed doing what they were designed to do: protect fish species. That was very evident in Jacksonville where the numbers and size of Gag Grouper and Scamp far exceeded the numbers and size outside the MPA.
Andy David recording for the ROV video log species of fish we are seeing on the dive.
(3) Survey new sites for possible MPA designation.
There is a process that is followed when determining if an area is a suitable MPA candidate. What we are doing on this cruise is both mapping and surveying new areas that have been proposed as MPA sites. This is the ground level stage. The MPAs in the region that we are in are ultimately determined by the South Atlantic Fishery Management Council.
A Gray Triggerfish protecting a nest of eggs. Seen in the Edisto MPA as well as in a proposed site off of North Carolina.
Data during the dives is collected in a few ways. There are several video monitors that we watch and we call out species that we see. A data keyboard, like the one Harbor Branch uses for invertebrates counts, is used to keep track of types and number of each species seen. During every dive a video from the camera on the ROV is recorded and species are highlighted and recorded on to the DVD. This data will be analyzed thoroughly back at the lab and then sent to the South Atlantic Fishery Management Council.
Personal Log
I am happy to announce that I have finally gotten my sea legs. It wasn’t as bad as I had envisioned but I was definitely concerned that it would be a major issue. We had some weather on Thursday, July 4 and that was the worst of it for me. I now hardly feel the vessel move. It has been fun over the past several days. We are in the lab most of the days so we only get to really see the crew at mealtimes and after dinner. The crew, from the CO to the engineers, are all great people. They are happy to answer questions, point you in the right direction and are quick to say hi and ask you about your day. Yesterday afternoon one of the engineers, Steve, gave us a tour of the engine room. All of the ship’s infrastructure is supported by this room. The engines run the generators for power, support the a/c, house the desalination filters (all the fresh water on board comes from salt water) as well as getting the boat from point A to point B. I was impressed!
One of the 4 Caterpillar engines that keep Pisces running ship shape.
Today after our last ROV dive, a school of Mahi mahi followed it (the ROV) up to the surface. The fishing was on! The crew brought out rods, reels and bait and the fishing commenced. Collectively we managed to land one bull or male and 2 smaller Mahi mahi. It was a nice diversion for all of us, scientists and crew, as we were back to work all too quickly. Fish tacos for dinner!
Hoping I can land this one!
Fair weather and calm seas.
Jennifer
Did you know that…
Some grouper can grow to be so huge that when they open their mouths to feed, they create a suction that is powerful enough to inhale small prey.
NOAA Teacher at Sea Lesley Urasky Aboard the NOAA ship Pisces June 16 – June 29, 2012
Mission: SEAMAP Caribbean Reef Fish Survey Geographical area of cruise: St. Croix, U.S. Virgin Islands Date: June 18, 2012
Location: Latitude: 17.6568
Longitude: -64.9281
Weather Data from the Bridge:
Air Temperature: 28.5°C (83.3°F)
Wind Speed: 17.1 knots (19.7 mph), Beaufort scale: 5
Wind Direction: from SE
Relative Humidity: 75%
Barometric Pressure: 1,014.80 mb
Surface Water Temperature:28.97 °C (84.1°F)
Science and Technology Log
Alright, so I’ve promised to talk about the fish. Throughout the science portions of the cruise, the scientists have not been catching the anticipated quantities of fish. There are several lines of thought as to why: maybe the region has experienced overfishing; possibly the sampling sites are too shallow and deeper water fish may be more likely to bite; or they might not like the bait (North Atlantic mackerel) since it is not an endemic species/prey they would normally eat.
So far, the night shift has caught more fish than the day shift that I’m on. Today, we have caught five and a half fish. The half fish was exactly that – we retrieved only the head and it looked like the rest of the body had been consumed by a barracuda! These fish were in the grouper family and the snapper family.
Coney (Cephalopholis fulvus)Blackfin snapper (Lutjanus buccanella). This little guy was wily enough to sneak into the camera array and steal some squid out of the bait bag! The contents of his stomach – cut up squid – can be seen to the left between the forceps and his head.
Once the fish have been caught, there are several measurements that must be made. To begin, the fish is weighed to the nearest thousandth (three decimal places) of a kilogram. In order to make sure the weight of the fish is accurate, the scale must be periodically calibrated.
Then there are several length measurements that are made: standard length (SL), total length (TL) and depending on the type of fish, fork length (FL). To make these measurements, the fish is laid so that it facing toward the left and placed on a fish board. The board is simply a long plank with a tape measure running down the center. It insures that the fish is laid out flat and allows for consistent measurement.
Standard length does not measure the caudal fin, or tail. It is measured from the tip of the fish’s head and stops at the end of the last vertebra; in other words, if the fish is laying on its side, and you were to lift the tail up slightly, a crease will form at the base of the backbone. This is where the standard length measurement would end. Total length is just as it sounds – it is a measurement of the entire length (straight line) of the fish. Fork length is only measured if the type of fish caught has a forked tail. If it does, the measurement begins at the fish’s snout and ends at the v-notch in the tail.
How to measure the three types of lengths: standard, fork, and total. (Source: Australian Government: Department of Sustainability, Environment, Water, Population, and Communities)Red hind (Epinephelus guttatus) on the fish board being measured for standard length. Ariane’s thumb is on the crease marking the end of its backbone.
Once the physical measurements are made, the otoliths must be extracted and the fish sexed. You’re probably anxious to learn if you selected the right answer on the previous post’s poll – “What do you think an otolith is?” An otolith can be thought of as a fish’s “ear bone”. It is actually a structure composed of calcium carbonate and located within the inner ear. All vertebrates (organisms with backbones) have similar structures. They function as gravity, balance, movement, and directional indicators. Their presence helps a fish sense changes in horizontal motion and acceleration.
In order to extract the otoliths, the fish must be killed. Once the fish has been killed, the brain case is exposed and peeled back. The otoliths are in little slits located in the underside of the brain. It takes a delicate touch to remove them with a pair of forceps (tweezers) because they can easily break or slip beyond the “point of no return” (drop into the brain cavity where they cannot be extracted).
Otoliths are important scientifically because they can tell many important things about a fish’s life. Their age and growth throughout the first year of life can be determined. Otoliths record this information just like tree ring record summer/winter cycles. More complex measurements can be used to determine the date of hatch, once there are a collected series of measurements, spawning times can be calculated.
A cross-section of an otolith under a microscope. The rings are used to determine age and other life events. Source: Otolith Research Laboratory, Bedford Institute of Oceanography, Dartmouth, Nova Scotia, Canada.
Because they are composed of calcium carbonate (CaCO3), the oxygen component of the chemical compound can be used to measure stable oxygen isotopes; this is useful for reconstructing temperatures of the waters the fish has lived in. Scientists are also able to look at other trace elements and isotopes to determine various environmental factors.
Extracted otoliths. Often they are around 1 cm long, although the larger the fish, the slightly larger the otolith.
The final step we take in measurement/data collection is determining the sex and maturity of the fish. To do this, the fish is slit open just as if you were going to clean the fish to filet and eat it. The air bladder must be deflated if it isn’t already and the intestines moved out of the way. Then we begin to search for the gonads (ovaries and testes). Once the gonads are found, we know if it is female or male and the next step is to determine its stage or maturity. This is quite a process, especially since groupers can be hermaphroditic. The maturity can be classified with a series of codes:
U = undetermined
1 = immature virgin (gonads are barely visible)
2 = resting (empty gonads – in between reproductive events)
3 = enlarging/developing (eggs/sperm are beginning to be produced)
4 = running ripe (gonads are full of eggs/sperm and are ready to spawn)
5 = spent (spawning has already occurred)
Ovaries of a coney (grouper family). These are the pair of flesh colored tubular structures running down the center of the fish.
Personal Log
Today is my birthday, and I can’t think of a better place to spend it! What a treat to be having such an adventure in the Caribbean! This morning, we were on our first bandit reel survey of the day, and the captain came on over the radio system, announced my birthday and sang Happy Birthday to me. Unbeknownst to me, my husband, Dave, had emailed the CO of the Pisces asking him to wish me a happy birthday.
We’ve had a very successful day (compared to the past two days) and have caught many more fish – 5 1/2 to be exact. The most exciting part was that I caught two fish on my bandit reel! They were a red hind and blackfin snapper (see the photos above). What a great birthday present!
Father’s Day surf and turf dinnerMy birthday fish! The blackfin snapper is on the left and the red hind on the right.I even got a birthday kiss from the red hind!
Last night (6/17) for Father’s Day, we had an amazing dinner: filet mignon, lobster, asparagus, sweet plantains, and sweet potato pie for dessert! Since it was my birthday the following day (6/18), and one of the scientists doesn’t like lobster, I had two tails! What a treat!
Our best catch of the day came on the last bandit reel cast. Joey Salisbury (one of the scientists) caught 5 fish: 4 blackfin snapper and 1 almaco jack; while Ariane Frappier (another scientist) caught 3 – 2 blackfin and 1 almaco jack. This happened right before dinner, so we developed a pretty good assembly line system to work them up in time to eat.
Dinner was a nice Chinese meal, but between the ship beginning to travel to the South coast of St. Thomas and working on the computer, I began to feel a touch seasick (not the best feeling after a large meal!). I took a couple of meclazine (motion sickness medication) and still felt unwell (most likely because you’re supposed to take it before the motion begins). My roommate, Kelly Schill, the Operations Officer, made me go to bed (I’m in the top bunk – yikes!), gave me a plastic bag (just in case!), and some saltine crackers. After 10 hours of sleep, I felt much, much better!
I had some time in between running bandit reels, baiting the hooks, and entering data into the computers,to interview a member of the science team that joined us at the last-minute from St. Croix. Roy Pemberton, Jr. is the Director of Fish and Wildlife for the Department of Planning and Natural Resources of the U.S. Virgin Islands. The following is a snippet of our conversation:
LU: What are your job duties as the Director of Fish and Wildlife?
RP: I manage fisheries/wildlife resources and try to educate the population on how to better manage these resources to preserve them for future generations of the U.S. Virgin Islands.
LU: When did you first become interested in oceanography?
RP: I’m not really an oceanographer, but more of a marine scientist and wildlife biologist. I got interested in this around 5-6 years old when I learned to swim and then snorkel for the first time. I really enjoyed observing the marine environment and my interest prompted me to want to see and learn more about it.
LU: It’s such a broad field, how did you narrow your focus down to what you’re currently doing?
RP: I took a marine science class in high school and I enjoyed it tremendously. It made me seek it out as a career by pursuing a degree in Marine Science at Hampton University.
LU: If you were to go into another area of ocean research, what would it be?
RP: Oceanography – Marine Spatial Planning
Roy Pemberton holding a recently caught coney.
LU: What is the biggest challenge in your job?
RP: It is a challenge to manage fisheries and wildlife resources with respect to the socioeconomic and cultural nuances of the people.
LU: What do you think is the biggest issue of contention in your field, and how do you imagine it will resolve?
RP: Fisheries and coral reef management. We need to have enough time to see if the federal management efforts work to ensure healthier ecosystems for future generations.
LU: What are some effects of climate change that you’ve witnessed in the reef systems of the U.S. Virgin Islands?
RP: Temperatures have become warmer and the prevalence of disease among corals has increased.
LU: In what areas of Marine Science do you foresee a lot of a career paths and job opportunities?
RP: Fisheries management, ecosystem management, coral reef diseases, and the study of coral reef restoration.
LU: Is there an area of Marine Science that you think is currently being overlooked, and why?
RP: Marine Science management that takes into account cultural and economic issues.
LU: What are some ideas a layperson could take from your work?
RP: One tries to balance resource protection and management with the cultural and heritage needs of the population in the territory of the U.S. Virgin Islands.
LU: If a high school student wanted to go into the fish/wildlife division of planning and natural resources, what kinds of courses would you recommend they take?
RP: Biology, Marine Science, History, Botany, and Math
LU: Do you recommend students interested in your field pursue original research as high school students or undergraduate students? If so, what kind?
RP: I would suggest they study a variety of life sciences so they can see what they want to pursue. Then they can do an internship in a particular life science they find interesting to determine if they would like to pursue it as a career.
Too many interesting people on the ship and so little time! I’m going to interview scientists as we continue on to San Juan, Puerto Rico. Once they leave, I’m continuing on to Mayport, Florida with the ship. During this time, I’ll explore other careers with NOAA.
NOAA Teacher at Sea
Marian Wagner Aboard R/V Savannah August 16 — 26, 2011
Mission: Reef Fish Survey Geographical Area: Atlantic Ocean (Off the Georgia and Florida Coasts) Date: Saturday, August 20, 2011
Weather Data from the Bridge (the wheelhouse, where the controls of the ship are)
E-SE Wind at 5 knots (wind is travelling 5 nautical miles per hour, 1.15 statute miles = 1 nautical mile)
Sea depth at 12:42 pm was 51.2 meters
Water Temperature 29.62 Celsius
Science and Technology Log
Research aboard the R/V Savannah has commenced and is at full throttle. Scientists and crew are well-trained and everyone knows their jobs thoroughly. All work is moving along with great efficiency! Now that I have learned and experienced the details this research, I’ll explain it here:
As a reminder, our mission is to survey the population of commercially-important species to inform stock assessments, or, put another way, we study how many fish there are and where they exist, and we provide information to help fisheries managers set a sustainable harvest (so we don’t run out of fish). We conduct our research by dropping chevron fish traps onto the ocean floor to catch samples of fish we can use to estimate a population and report important biological measures (for example, age, length, weight, feeding habits, and genetics). The method of using chevron traps to catch live biological samples doesn’t work well for all species, so another way of estimating abundance is by recording the activity that is happening around the traps with video cameras.
We cannot begin dropping fish traps until one hour after sunrise because the cameras need natural light to record the habitat and the activity (if we were to use artificial light it would change everything: sometimes fish are attracted to artificial light, other fish avoid it, so our research would be compromised, or messed up, if we used artificial light). So, the crew that works the shift from midnight to noon gets the first traps ready, and they start deploying them around 8:00 am. Here’s what it looks like to drop traps off the boat:
Cameras rolling, we are almost at the target spot to drop the trap.
The traps stay down on the ocean floor for 90 minutes. We usually deposit 6 traps at a time in the same general area (each a mile or less apart), and we pick them up in the same order we dropped them. To pull the traps out of the water, we use a hydraulic pot hauler (that was made in Seattle, WA!) and a team effort of coordinated and careful action. If we were not extremely careful doing this work on the deck, not only could the science data be useless, but people could easily be hurt. This is what we look like in action:
Pulling up trap, excited to see what we caught
I get up in the morning around 9AM, I have breakfast and relax during the few hours I have off before my shift begins. I like to talk to people, visit the bridge for weather and information on our direction, and when I can get on the single computer, I sometimes do so before my shift begins.
My shift begins at noon, when I suit up to work on the deck of the stern (the back). We work dropping traps, picking them up, and processing fish that we catch. The work is very carefully conducted, with everyone having specific roles but also helping each other in every way so we can do our best job. The amount of teamwork is incredible.
I am extremely impressed with how well each scientist and crewman clearly thinks of the team first, and his/her individual needs second. Everyone (I mean EVERYone) works hard (I mean VERY hard), is very thoughtful and conscientious of the “big picture”, is fun to laugh with and be around, and, in general, everyone is just easy to live with. Doing field science research like this would be really tough if scientists did not also get along well as a member of a team. Because conducting this research depends upon teamwork, being able to live and work well together is perhaps as important as one’s research skills.
This door is charming yet inconvenient during a middle-of-the-night bathroom run, but esential in case of emergency.
Personal Log
Living on a ship has so many opportunities for adventure! I mean…going to the head (bathroom) is still an adventure for me! Walking through two watertight doors to get to the bathroom is an adventure. Keeping my balance in a rocking shower, a place where I am often most relaxed, is a new adventure. Being constantly aware of the amount of water I am using so we don’t run out of running water (and knowing everyone else is doing the same) is a reality, and an adventure of sorts. Not being able to get away from the strangers-who-are-now-family is an adventure. And there are all the work-related adventures…wrestling with a moray eel against its gaping teeth (which could have infected and killed the muscles in my arm for life) was a foolish adventure (I should have let it get out of the tub and slither away instead of wrestling it), but I successfully made it through to tell about it with no injury. There are so many adventures. I am remembering how much I love learning by immersing myself in new experiences. I really believe the most powerful way to learn about another way of life is to live it.
After being iced for 30 minutes to take data on him, this moray was still fighting but with much less vigor. I threw him off the ship after this photo. He's alive.
Also, I love being in the unique environment of the pelagic ocean, the part of the ocean that is not near land. It is another experience of immersion to be around this environment for a length of time, and really get to live within it. I can feel the changes of the rocking motion of the ship when the seas are rougher, I can see when the clouds spell rain, I know the phase of the moon and the smell of the ocean air. I know this environment now just as well as I know my own neighborhood.
NOAA Teacher at Sea
Walter Charuba Aboard R/V Savannah July 18 — 29, 2011
Mission: Reef Fish Survey Geographical Area: Southeast Atlantic Ocean Date: July 17, 2011
Personal Log
Hello, my name is Walter Charuba, Mr. Charuba to my students. I am introducing my first blog. I am a sixth grade science teacher at Brownell Middle School in Grosse Pointe. The reason I am wriiting this blog is that I am out on the Atlantic, off the coast of Georgia and Florida, on the scientific reasearch vessel, Savannah. I was granted this opportunity with the NOAATeacher at Sea Program. I just embarked on this voyage this morning. (This is one time I used the word “voyage” and really meant it.)
The purpose of this excursion is to collect samples of reef fish off the coast of Florida. I plan to get into greater details when I experience more of my surroundings. It is kind of like science class–it is best to learn by doing. Another reason I am keeping this short is the ship is rocking a bit and I think I will be better to handle the motion tomorrw. Please keep reading in the future because I am truly excited to give details about this wonderful opportunity. If the email connection can handle it, I will also send some images.
NOAA Teacher At Sea: Elizabeth Warren Aboard NOAA Ship Pisces
Mission: Reef Fish Surveys Geographical Area of Cruise: Gulf of Mexico Date: July, 15 2010
Here we goooo……
Weather Data from the Bridge: Temperature: Dry Bulb 30̊℃, Wet Bulb 26.2 ℃ Wind: 7-9 mph Swell: 3-4 feet Location: 28 37.12° N, 89.33° W Weather: Sunny, Humid, Scattered clouds
Science/Technology Log
Me in Front of the Southwest Fisheries Building
Yesterday, Anne-Marie and I were given a tour of the NOAA facilities in Pascagoula. In the new building they house several different divisions; Southeast Marine Fisheries Unit, Seafood Inspection and Documentation and Approval Center. Kevin Rademacher our Chief Scientist showed us around. The labs in the Marine Fisheries unit take what is being done on the vessels and use it for research. They run many different types of research on the ships. Beside the Pisces, there are two other ships that are run out of Pascagoula; Oregon II, and The Gordan Gunter.
Seafood Inspection Lab
On one of the floors were the Seafood Inspection labs. They bring in fish from different areas and test it. In one lab they had a set of partitions up which were the tasting areas. An example of what they have done in the past that Kevin gave us was a restaurant bought some red snapper. They brought it to the lab where they cooked in clear Pyrex containers then they smelled, checked the consistency, and tasted the fish. They discovered that the fish was not really snapper! Right now due to the oil spill they are mainly focusing on the fish that we bring in on our survey. We are required to save 10 fish out of every trap we bring up so that they can have a baseline testing of fish from an area before being it has been impacted by the oil spill.
Another floor of the building is the science labs. We walked through the plankton lab, where each person had their own station with a computer and a high powered microscope. They had several different samples out that were labeled. Just like our trip in the 6th grade they used nets with different size holes to catch different types of plankton. Another lab was called the Age and Growth lab. Here is a picture of shark vertebrae they were preparing for aging.
Plankton lab
Today we are not working on the Reef Fish survey. Our Chief Scientist Kevin Radechamer wanted to do some mapping of an area called Sackett Bank which is south of Louisiana. The mapping they had done before did not give them an accurate depiction of the sea floor and now they have new technology. They are using an acoustic system called ME70. This system has 27 beams that run in a 120 degree swath. With the technology they had before they were only able to see 1 meter “bumps” on the surface now they can see to within a ½ meter. The white line that you can barely see shows the surface of the seafloor. The red is sand or mud that is on the bottom, as the red gets thinner and darker it is showing the harder rock that is below. As the sound waves go down they bounce back and we are able to see any see critters that are down there. Most of what you can see in the picture is plankton but occasionally you can see fish as well. This is a before and after shot of the two types of mapping. In one the map technology was guessing what was in between the bands. This information will give scientists new information about the seafloor.
Mapping Sackett Bank
Mapping Sackett Bank
Personal Log:
Sailing Board
I’m finally here! The last two days were very exciting. When we got to the ship it was 7:00ish and most of the ship’s crew were out and about, so we had the ship to ourselves. We wandered around taking pictures and investigating. I only went on an “adventure” (lost my way) twice. Everywhere you turn there is a doorway, hatch or stairwell. I was awed by the amount of technology that they have on board. There are computer labs on almost every floor. I am envious of the color printer! Ann Marie and I are sharing a state room. It’s fantastic! The crew takes pride in what they do and it is very obvious, our beds even had mints on them. We have a T.V. and an internet connection in our room. I don’t plan on spending a lot of time in there but it is pretty fabulous!
My Stateroom
We left port yesterday and headed south. The scientists and teachers stayed on the fly deck as we moved closer to the Gulf. As we were leaving you could see what impact the oil spill has had on the Mississippi Coast and on the Barrier Islands.
Impact of Deepwater Horizon
As a result of the tropical storm over the weekend there were some pretty high swells. We had waves from 6 to 8 ft. The ship was rocking pretty badly. After our Safety Meeting where we were told about all of the safety precautions and the rules. No matter where you go there are rules. Including.. No wearing tank tops to the galley and NO sitting in the captains chair. After the safety meeting the rolling was beginning to get to us so Anne Marie and I took to our bunks. I didn’t get sick! I did however go to sleep at 7:30.
Today we have spent most of the day wandering around the ship and talking to the many different crew members on board. Oh.. and we had a fire drill. The fire drill was a lot like having one at school, the bell rang we walked to our area and then we sat for awhile. The next drill was much more exciting. We had an Abandon Ship Drill! We had to grab a long sleeve t-shirt, a hat, pants, our Gumby suit, and a life jacket. It was a lot of stuff to carry with us! Everyone met out on the deck and I was introduced to Chief Marine Engineer Garrett who would be in charge of getting me where I needed to be in an emergency. As a first timer I was required to get into my Gumby suit. Yes, for those of you old enough to remember they are named after Gumby and Pokey. This would definitely not be my choice of a fashionable outfit. To get into it you have to lay the suit down on the ground and climb in like a sleeping bag. Then you zip it up!
In my gumby suit
Everywhere you look in the Gulf you see oil rigs or tankers moving away or to an oil rig. We passed the disaster site this morning but we were 9 miles away so we did not see any oil or much of anything. In fact I haven’t seen oil yet, which is a good thing. The interesting thing that has come about for our trip as a result of the spill is the two bird experts, Scott and Ron. The birders were hired to look for pelagic birds, those that spend most of their lives at sea. Fish and Wildlife hired one, and the other is here for BP. They are looking to see if any pelagic birds have oil on them or if they find any dead birds. So far, in the four hour s they watched this morning they saw 11 birds. Listening to them talk has been fascinating!
Sunset
This was the sunset tonight. I’m heading in with tea in hand to try and upload the rest of my pictures. I’m ready for tomorrow! Kevin said we will start a half hour after sunrise so I’ll be up bright and early! Let’s do it! Bring on the giant fish and things for me to get dirty with!
NOAA Teacher at Sea Melinda Storey Onboard NOAA Ship Pisces June 14 – July 2, 2010
NOAA Teacher at Sea: Melinda Storey NOAA Ship Pisces Mission: SEAMAP Reef Fish Survey Geographical Area of Cruise: Gulf of Mexico Date: June 19, 2010
Weather Data from the Bridge Time: 1000 hours (10:00am) Position: latitude = 27°34 N, longitude = 096°28 W Present Weather: mostly clear Visibility: > 10 nautical miles Wind Direction: SSE Wind Speed: 13 knots Wave Height: 2 feet Sea Water Temp: 29.5°C Air Temperature: dry bulb = 29.4°C, wet bulb = 27.8°C
Science and Technology Log
One of the goals of the SEAMAP Reef Fish survey is to monitor the health and abundance of reef fish to establish limits on how much fish the fishing industry can take out of Gulf waters. SEAMAP stands for Southeast Area Monitoring and Assessment Program and is a State/Federal/University program for collection, management and dissemination of fishery-independent data and information in the southeastern United States.
Due to the oil spill in the Gulf, the fish we capture will be weighed, measured, frozen, and delivered to the Seafood Inspection Laboratory (NSIL) in Mississippi to be tested for hydrocarbons (oil) or other contamination to ensure that the seafood is safe to eat. Since the oil spill is far to the east of where we are doing the survey, our data will serve as a baseline and be compared to future studies to see what the extent and future impact of the oil will be in these waters.
Dropping the baitBucket of fish
The fish are taken out of the Chevron Trap or off the Bandit Reel and brought into the wet lab.
The first measurement we take is the weight (or mass) of the fish in kilograms (kg) using a motion compensating scale. One scientist will take the measurements while another records the data in a data table.
Weighing fishMeasuring fish, recording dataMeasuring fish, recording data
Next, we take three different measurements of length by placing the fish on a board that has a metric measuring tape attached. All length measurements are measured in millimeters (mm). First, we take the Total Length (TL) measurement which is from the mouth of the fish to the longest point on the tail. Then we measure the Fork Length (FL) from the mouth of the fish to the indention of the tail. The last measurement is the Standard Length (SL) which is from the mouth of the fish to the base of the tail.
Fish Diagram
Personal Log
I’m loving the gross and slimy science that we are doing here. The other teacher on board likes logging the data onto the charts and all the numbers. That suits me fine because I like hands-on science! The messier the better.
Holding the squidHolding the squidHolding the squidBaiting a fish trap
You can see me holding the squid that we use to bait the Chevron fish trap. I even like picking up the fish and weighing them and measuring them too. Our Chief Scientist, Paul Felts, let me calibrate the scale. This scale compensates for the rolling of the ship so we get a very accurate weight. I think the scientists get a kick out this old woman doing some of the gooey, messy work like baiting the fish trap with the slimy squid and the Bandit Reel with pieces of mackerel, but what they don’t know is that I don’t mind at all!
I have been amazed at the number of oil rigs in the Gulf. Wherever we’ve been – 100 miles out or 40 miles out – we’ve seen oil and gas platforms (rigs). Rigs that are out 100 miles start drilling at 5,000 feet deep. At night the rigs are all lit up and are beautiful but the number just overwhelms me.
Oil RigsNautical Chart
The CO showed me a chart they were using on the bridge and it looked like someone shook pepper on a white sheet of paper, only each pepper flake was an oil rig. He said that most of those rigs have been built since 1997. At first, ships from oil companies were sent out to map the ocean floor and that would help them decide WHERE to drill. On the nautical chart there were two levels of ocean depths – shallow water and deep water. I was looking at the deep water chart. When I commented on the number of oil rigs, the CO said there were even more rigs in the shallow part. He said that when he “steams” through the shallow water rigs it’s “like driving through traffic.”
There is a bird that has been catching a ride with us for the last 24 hours. We Googled ocean birds and found out it was a Brown Booby. They look like the blue footed Boobies that live in the Galapagos Islands. He is black with a white belly and white face with bright yellow beak. He also has yellow webbed feet. He just sits on top of a weather post in the bow and grooms himself. He poops too. Sometimes he flies off to catch a flying fish but always returns.
New Term/Vocabulary
Bridge – the top level of the ship where the Commanding Officer steers the ship
Steam ahead – to move forward
“Something to Think About”
Nicolle found a moth in her room last night. Now, how did a moth get way out here? I caught him and released him but who knows what will happen to him. It doesn’t look good for the little guy!
“Did You Know?”
Did you know that if you get “pooped on” by an ocean bird, it means you’ll have good luck? Fortunately I’m not lucky!!!
There is a bird that has been catching a ride with us for the last 24 hours. We Googled ocean birds and found out it was a Brown Booby. They look like the blue footed Boobies that live in the Galapagos Islands. He is black with a white belly and white face with bright yellow beak. He also has yellow webbed feet. He just sits on top of a weather post in the bow and grooms himself. He poops too. Sometimes he flies off to catch a flying fish but always returns.
NOAA Teacher at Sea
Chris Imhof Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Coral Survey Geographic Region: Southeast U.S. Date: November 19, 2009
Science Log
After 3 days and many hours in front of computer screens and monitors I almost forgot I was on a boat. Tonight is my last night on the Pisces, and although at times it has been rough, I have started to get used to the rocking of the ship and know every crew member by name. I ran about the ship when I have had a second, to take in things knowing I will have chance tomorrow . I will miss looking across the open sea and having opportunities to catch a glimpse of a shark fin near the side of the ship and a huge sea turtle making its way across the waves. I will miss talking to the crew and the scientists, and working with Jeannine Foucault the other Teacher at Sea. I’ll probably write another log tomorrow to sum up the experience, but its hard
to rally up for a science log when you are tired and many of have to pack to disembark at Jacksonville tomorrow morning. As for the Pisces and her crew, they will make their way back to Pascagoula for the Holidays.
NOAA Teacher at Sea
Jeannine Foucault Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Ecosystem Survey Geographic Region: Southeast U.S. Date: November 18, 2009
Instrumentation
Science Log
Lionfish and more lionfish…..the South Atlantic coastline is getting overtaken by these funny little creatures. Scientists find that they are competing with the Grouper and Tilefish throughout the coastline and unfortunately winning. Speculation has it that at one time dive charters brought this species of fish to the coast for tourist purposes while other speculation tells that people who own aquariums once owned the lionfish kept them so long that they grew so big they had to get rid of them. What better way to get rid of them was to dump them into the South Atlantic Ocean? Nevertheless, they are here and destroying the populations of Grouper and Tilefish.
Seafloor images
Since 2004 NOAA scientists have been working on this MPA (Marine Protected Area) project to gather data to identify the significant changes in species populations of the lionfish, grouper, and tilefish. Each year they come out to the same plotted MPA’s to check the habitat populations. Unfortunately, the lionfish numbers are increasing and the grouper and tilefish populations are decreasing. So what happens now? Do the grouper and tilefish relocate? Do they become endangered? Do we capture the lionfish and relocate them? There is no real answer to the problem at hand, but this is one example of the many ways NOAA scientists work on protecting marine life.
Today I was able to work hands on with launch and recovery of the ROV (Remote Operated Vehicle). Yep, hardhat and all! My job was to make sure the tether line didn’t get tangled and was being fed in and out of the ocean properly. Launch and recovery of the ROV can be a very dangerous operation if everyone is not communicating and alert.
I was also able to drive the ROV from inside the ship across the ocean floor about 223ft in depth. Driving was not as easy as it looked. Maneuvering the ROV in the direction to which the scientists need as well as not to tangle the tether. Once the end of the tether is near I had to radio up to the bridge to move the ship in whichever direction the scientists needed to explore next.
Finally, as the day was winding down acoustics lab was testing their equipment from the ship. The mammal biologists were able to identify sounds from several playing dolphins! I was able to listen to their playful audio for a while before they dissipated into the ocean.
What did I eat for dinner? Fresh sushi, of course!
NOAA Teacher at Sea
Chris Imhof Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Coral Survey Geographic Region: Southeast U.S. Date: November 18, 2009
Science Log
NOAA’s mission is to “protect, restore and manage the use of coastal and ocean resources.” The way NOAA does this is through science – a voyage like this may seem like moving from point to point and placing a really cool piece of technology in the water to see what’s on the bottom – but these are all tools that are being used to be able to carry out the tenets of protect, restore and manage.
We have visited half our sites now and have surveyed different environments in and out of Marine Protected Areas. Different environments, yet with commonalities – all the sites are near exposed “hard-bottom” or exposed limestone on the shelf bottom. There may be miles of sand waves and algae – but theses exposed, complex and bio-encrusted features are “oasis’s” for all sorts of ocean life – especially fish. As the ROV maneuvers across the sandy waves, it is usually the glint of a school of fish or reflection of a fish eye that provides a beacon to a feature. If these features are “oasis” habitats then they should be protected. Granted, these limestone blocks can do more damage to fishing line and gear, evident in the amount of line found in the high relief areas – but in the case of some of the North Florida MPA, we encountered the fragile deep water Occulina Coral which is vulnerable especially when nets are being dragged across these areas.
Another commonality noticed is the growing presence of the beautiful Lion Fish (Pterois volitans) – this native of Pacific waters was released intentionally or unintentionally in the early 1990’s around Florida and have since spread to areas above North Carolina and south to the Caribbean, especially along reefs and rocky outcrops. They join an infamous ranks of other invasive species including the European Green Crab, Asian Eel and Zebra Mussel. The Lion-Fish, besides having an array of venomous spines. has a keen strategy of “corralling” prey with their fins and eating them in one gulp. This will impact the small fish and crustaceans in these habitats as well as the added competition with indigenous or native predators such as snappers and grouper fish – which are currently commercially fished. This is where “manage” comes in – here is a “new” invasive species in that is growing in population and spreading geographically, impacting the habitat by out-competing, in some cases, the established predators – how can it be managed.
Especially when the Lion-fish has few natural enemies. The Lion Fish is a tricky one – as an invasive species, missions like this one help to understand the long-term impact the Lion-Fish is having on these habitats. Using technology like multi-beam mapping and ROV technology can provide data for scientists and in turn give councils, commissions and government the knowledge to manage these areas through smart-solution-based policy.
NOAA Teacher at Sea
Jeannine Foucault Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Ecosystem Survey Geographic Region: Southeast U.S. Date: November 17, 2009
Taking a first look at the data
Science Log
What an exciting day! The first time we launched the ROV (Remote Operated Vehicle) into the ocean at our first MPA (Marine Protected Area) in North Florida. The amount of manpower and communication that goes into something like this is just extraordinary. The deckhands must be available and working with the crane to gradually place the ROV into the water, the crew must be on the bridge communicating with the scientists and the deckhands to maneuver the ship where needed, and finally the scientists have to be working gathering data and making sure the ROV is placed where the MPA site is located. Even before the ROV is launched something called a CTD (Conductivity Temperature and Depth) is lowered into the ocean to gather water temperature, salinity, and depth. This CTD device is lowered twice in one day, once at the beginning of the day and once at the end of the day to give the scientists some raw data of the waters.
The ROV will usually “dive” for about an hour while the scientists record live footage. One scientist is actually driving the ROV from inside the ship. The ROV has four propellers that run from an electric motor supplied by the electricity source provided by the ship. It almost looks like he’s playing a video game when he is driving. It’s got two joysticks and a monitor that he follows.
Fish on the screen from the ROV
Another job is where a scientist is keeping track of the 37″ TV monitor. He or she records the species of fish seen along with longitude, latitude, depth, and floor surface. Yet another scientist is working taking still and video photographs from the ROV while providing audio narration to aid in video analysis when reviewing back in the lab.
All the above is going on and still don’t forget the communication between the bridge and the scientists. If the scientists want to move the ship just about 400m due East then he will radio up to the captain on the bridge and the ship will move 400 m due East being very careful not to run over the ROV or cause any other safety concerns. Safety is NOAA’s biggest concern!
Take a look at the animals I have seen today:
Amberjack fish
Red snapper fish
Yellow tail snapper fish
Lion fish
Toad fish
Hog fish
Shark
Ramora fish
Reef butterfly fish
Soldier fish
Black coral
Goliath grouper!!!
Scamp fish
Moray eel
Sea turtle
Barracuda fish
Look these up and send me a photo….. I’ll let you know if that’s what I see!
NOAA Teacher at Sea
Chris Imhof Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Coral Survey Geographic Region: Southeast U.S. Date: November 17, 2009
Science Log
We sailed last night to our first “station” – The North Florida Marine Protected Area – and by 7:00 am this morning the ROV pilots Lance Brown and Glenn Taylor were going through the “pre-flight” checklist on the ROV; Lance working the controls in the lab, Glenn outside taking care of the deployment and extraction of the vehicle on the starboard weather deck. Soon they were meeting with the Lead NOAA scientist Andy David to talk through the operations of the deployment and extraction and more specifically the methodology of what they were trying to accomplish at this site.
The North Florida MPA area has been protected since 2004 – meaning no sailing or fishing occurs in this area. Some of the area has been mapped by multi-beam sonar – so what scientist then do with ROV technology is “Ground-Truthing” in which after examining the multi-beam maps – choose features to explore and check visually how they compare with their maps. Since the ROV sends real time video feed to the lab, the scientist watch and note the features, the animals that are present or not present in the habitat. They also perform a down shot every 2 minutes, or stop the ROV – point the camera down and take a picture – later in the lab they quantify the habitat by gridding the photograph and counting the number of species. Todays North Florida site tested sites inside the Marine Protected Area as well as sites/features outside the MPA for comparison as well as to help make future decisions of extending possible areas into the protective zone or even species.
After the scientists met, the Pisces crew and captain Jeremy Adams met on the weather deck to talk through the operation – sync their communications and what if scenarios. In all, there were 3 ROV dives which went extremely smooth, mainly due to the organization and communication of everyone involved.
The highlights of the dive were the spectacular features of the exposed limestone near the drop offs and the amazing habitats – for all my preparation the diversity of fish was overwhelming – I could identify a few featured fish like the Lionfish, barracudas and Moray Eels – I was unprepared to see a real sea turtle hanging out by some rocks or a Goliath Grouper which came out of nowhere. I learned many new fish which I hope to be able to call out from the monitor tomorrow like the Reef Butterfly, Squirrel Fish, Amberjack, Scamp, Soldier fish, Purple and Yellow Tail Reef Fish. I was helpful in identifying some of the Occulina deep coral species, the sponges (which you couldn’t miss) as well as pick out old fish line, a bottle and and an old anchor jammed into the rocks near the edge.
I’ll let the pictures and video slices tell most of the story. We are cruising all night again to our most northern site Edisto – off South Carolina and then work back from there.
NOAA Teacher at Sea
Jeannine Foucault Onboard NOAA Ship Pisces November 7 – 19, 2009
Mission: Ecosystem Survey Geographic Region: Southeast U.S. Date: November 14, 2009
Science Log
Of the many things I have learned so far there are three things that are standing out in my mind right now that I can share…..1) there is so much ionization in the ocean (salinity) that if it’s not neutralized it can cause many rusting/electrical problems on the ship 2) water on the ship is purified by passing through a UV light before it is sent for drinking and using on the ship 3) plank owners are called the very first crew members on a new ship!
When I went on the tour of the engine room or should I say rooms. The engineer pointed to a sign that read “cathode”. Well, I know my physical science students remember that a cathode is an electrode where an electric current flows out of a polarized electrical device. Anyway, the ship has all this salt water flowing in (lots of NACL) that has an electric charge so it has to be neutralized using the cathode so the water doesn’t cause any high electrical charges that can be dangerous with so much high voltage already running on the ship. Cool, huh?
Then the engineer explained the process of making water. The ship goes through about 1800 gallons of water per day. Through the process of purifying the water at the final stage is a tiny box with a long rectangular tin attached to a long thick wire. Above this box water flows through another tube flowing across the rectangular box. It reads ‘CAUTION: UV radition light’. As the water flows across the UV light it is emitting short wavelengths of ionizing radiation to rid of any living microorganisms in the water making it suitable to drink.
Finally, another crew member discussed the aspect of the ‘plank owners’. This is an individual who was a member of the crew of a ship when that ship was placed in commission. So since PISCES was commission on November 6, 2009 and the entire crew that is with me now on the ship was a member of the crew then they are all the plank owners of PISCES and I am the office plank owner Teacher at Sea!
NOAA Teacher at Sea
Robert Lovely
Onboard NOAA Ship Gordon Gunter March 31 – April 12, 2008
Mission: Reef Fish Ecological Survey Geographical area of cruise: Pulley Ridge and the West Florida Shelf, Gulf of Mexico Date: April 10, 2008
A bank sea bass (Centropristis ocyurus) tucked in under one of the rock outcrops along the West Florida Shelf.
Weather Data from the Bridge
Visibility: 12 miles
Wind Direction: 120 degrees
Wind Speed: 16 knots
Sea Wave Height: 2-3 foot
Swell Wave Height: 3-4 foot
Seawater Temp.: 22.1 degrees C.
Present Weather: Partly Cloudy
Science and Technology Log
Today we made three ROV dives on the West Florida Shelf, roughly 100 miles off the west coast of Florida. After making our usual CTD profile (see Ship’s Log, April 4, 2008) at about 0730, we lowered the ROV to a depth of 262 feet and followed a transect bearing southwest. The object was to conduct a fish survey with respect to species presence and abundance as a function of bottom habitat types. Essentially, we were looking for good hard-bottom fish habitats within an area being proposed to the Gulf of Mexico Fishery Management Council as a new Marine Protected Area (MPA).
A blue angelfish (Holacanthus bermudensis).
Each of the video transects revealed a mix of sand and hard bottom, with fish most abundant in areas having some topographic relief. Numerous hard rock outcrops offered attractive habitat for a wide variety of reef fish, such as scamp (Mycteroperca phenax), red porgy (Pagrus pagrus), red snapper (Lutjanus campechanus), almaco jack (Seriola rivoliana) greater amberjack (Seriola dumerili), short bigeye (Pristigenys alta), bank butterflyfish (Chaetodon aya), great barracuda (Sphyraena barracuda), red grouper (Epinephelus morio), blue angelfish (Holacanthus bermudensis), creolefish (Paranthias furcifer) saddle bass (Serranus notospilus) bank sea bass (Centropristis ocyurus) and many others. The sand flats in between ridges and reef outcroppings provided a stark contrast in terms of fish abundance. Over these areas the ROV would glide for minutes at a time without revealing many fish. But even in these less productive bottom habitats we would see the occasional fish dart into its hole as we passed over.
A school of jackknife fish captured by the ROV over the West Florida Shelf.A sea star (Class: Asteroidea) on the sand flats between reef outcroppings.
Personal Log
The quality and abundance of food on the GORDON GUNTER is remarkable, and I find it impossible to resist (especially the deserts). I’d rather not return home ten pounds heavier than when I left, so I’ve been trying to visit the weight room whenever I can find the time. During my first few sessions on the treadmill I had to hang on for dear life due to the rocking motion of the ship. It was pretty comical. Now, though, I am getting fairly good at going no-handed while compensating for the ship’s motion. It requires some dexterity, but it’s great practice for getting your sea legs. We also saw other common sea creatures, such as gorgonians, wire coral, basket stars, sea stars, feather sea pens, sea urchins, sponges and snails.
A short bigeye (Pristigenys alta) ready to dart into his hole on the sand flats.Basket stars (Order: Phrynophiurida) spread their plankton nets near the top of a gorgonian.
