Category: NOAA Teacher at Sea

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Elizabeth Eubanks, August 1, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: August 1, 2007

Weather Data from the Bridge  
Visibility: 10 miles
Air temperature: 17.4.0 degrees C
Sea Temperature at 500 m: 4 degrees C
Sea Temperature at surface: 15.2 degrees C
Wind Direction: 300 W
Wind Speed:  13 kts
Cloud cover: cloudy–stratus
Sea Level Pressure: 1014.7 MB
Sea Wave Height: 1-2 ft
Swell Wave Height: 3-4 ft

Science and Technology Log 

Make use of all or your resources! Yes, this ship is charted to study sharks, but as mentioned previously there are many other research projects going on. Dr. Russ Vetter and Eric Lynn are administering a CTD apparatus twice daily in the proximity of where the long lines are set: every night at 2000 (8pm) and every morning at 0500 (5am). CTD stands for Conductivity, Temperature and Depth. This machine costs approximately $15,000 and helps give scientist data to evaluate. The apparatus is dropped from a J Frame, a crane-like structure, from the ship into the ocean, while being guided by E. Lynn and R. Vetter who are strapped to the ship. See photos above and below. The apparatus contains two bottles, similar to a large thermos. Both bottles are open all the way down, depending at what depth the CTD drops to. On this trip it has ranged between 250m and 1,000m down. Once it gets to its destination the scientist pushes a button on their computer that is connected to the bottles and tells them to fire. This action shuts the bottles trapping water samples inside. One bottle is used for maximum depth water collection and the other is used for water sample collections at 10m. They have boxes filled with water samples that will be taken back to San Diego for testing by other scientists.

NOAA scientists, Eric Lynn and Dr. Russ Vetter prepare to lower the CTD. Notice the green cylinders on the left side of the CTD – they are bottles for water samples.
NOAA scientists, Eric Lynn and Dr. Russ Vetter prepare to lower the CTD. Notice the green cylinders on the left side of the CTD – they are bottles for water samples.

There are many other structures on the CTD that measure, salinity, temperature, depth, oxygen levels and fluorescence. Fluorescence measures how much chlorophyll is in the ocean and can be compared to the oxygen levels. Chemical Scientists who work for NOAA have put CO2 detection equipment on board many of the NOAA ships including the NOAA ship DAVID STARR JORDAN. The scientists do not travel with the ship, but come and check the data quite often. Global warming and CO2 levels in the atmosphere have been a hot topic. Many, many years ago when scientists were determining what to do with all the extra CO2, they had thought about pumping into the ocean. Thinking has changed a lot since then. Now scientists realize that the extra CO2 in the ocean is just as detrimental to the ocean as it is to the atmosphere. We’re all connected, we’re all affected. 

A very simple way to think about this is to think of the age-old science experiment of when you put a tooth in a bottle of soda and after a short time the tooth dissolves.  When CO2 is added to ocean water it creates a carbonic acid. Our bones are made of the mineral calcium (Ca) which keeps them hard and allows them to support our bodies.  Sea creatures that have bones or a shell count on Ca as well. Can you imagine what would happen to a clam that didn’t have enough Ca to make a shell? Or could you imagine a clam that had a shell and the acidic ocean water ate it up? These are things we need to imagine. Because of the increase in CO2, our average ocean Ph has dropped from ~ 8.1 down to 7.8, thus making the ocean more acidic. What I write here is only a first stepping stone to so many various things that are occurring with an increase of CO 2 levels on our planet.

The CTD being lowered from the J Frame on the NOAA ship DAVID STARR JORDAN
The CTD being lowered from the J Frame on the NOAA ship DAVID STARR JORDAN

Personal Log 

I can recall sitting in my classroom sometime in March or April. Maggie, a student, was in the room and it was well over an hour after school. I checked my email as I do routinely and there it was, the long awaited message from NOAA. I was a little nervous opening it, but did rather quickly. I was so excited to find out that I had been chosen to participate and immediately shared the news with Maggie, Rob and Dr. Finely the principal of my school. Anticipation filled my life until I got my assignment which was to board the NOAA Ship ALBATROSS IV in July, out of Woodshole, Mass to do a sea scallop survey. Of course I started reading all of the logs teachers had written. I prepared myself for working 12-hour shifts and measuring scallops. In May, when the staff at NOAA realized I would be in San Diego and that there was an opening on the NOAA Ship DAVID STARR JORDAN, they called and asked if I wanted to work with sharks.

It only took me 24 hours to accept that position and then I had new logs to read and new things to anticipate. I was extremely excited and equally as nervous. Would I get sick? Would people be nice? Would I feel safe and comfortable? Would I like the jobs I needed to do? Was I capable of doing the jobs? Oh no – I am not so great with the metric system, will people think I am stupid if I have to think and research before making a conversion? How much will I miss Rob? Will I like boat life? Then my questions even got more specific. Will have enough food? Which snacks should I bring? What does closed-toed shoes mean– can I wear Keens? Do I bring a towel? How many hobby supplies or books should I bring? How many girls will be there? Do we have to share a room with a guy (really I didn’t know)? You can imagine all of the questions I had and they didn’t stop until I had spent 24 hours on the ship and then I understood.

Here I am 11 days into this amazing adventure that has far surpassed anything I imagined. I have 2 more nights to get a giant “rock” (from the ocean waves) to sleep and 3 days to live on the Pacific Ocean. We only have 2.5 sets left to do.  Amazing. – I am going to enjoy every bit – starting right now – I am going to enjoy some of the great folks on board.  

Question of the Day 

What are some things YOU can do to further prevent the ocean from becoming more acidic?

What is a terapod?

What are some things that you anticipate about the upcoming school year?

Question of the trip: Which hook, the J or Circle, will catch more sharks? 

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.  

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Miriam Hlawatsch, July 29, 2007

NOAA Teacher at Sea
Miriam Hlawatsch
Onboard NOAA Ship Nancy Foster
July 29 – August 10, 2007

Mission: Lionfish Survey
Geographical Area: Atlantic Ocean, off the coast of North Carolina
Date: July 29 – August 1, 2007

NOAA Teacher at Sea, Miriam Hlawatsch, dons a survival suit
NOAA Teacher at Sea, Miriam Hlawatsch, dons a survival suit

Day 0

Personal Log

I report to the NANCY FOSTER a day early and find all is quiet. Tim Olsen, Chief Engineer and Lt. Sarah Mrozek, Officer of Operations were the first to greet me. Sarah and Tim help me to my stateroom where I stow my gear and settle in for my adventure. Later in the evening I meet several other shipmates, including Lt. Stephen Meador, the ship’s Executive Officer, or XO.

Day 1

Personal Log

I’m awake and dressed by 0600 hours. The ship is still quiet but not for long. The scientists come aboard early and we are underway by 0930 hours. At 1000 hours, Chief Scientist, Paula Whitfield, conducts a science briefing for the eleven-scientists/research divers involved in the lionfish mission. Additionally, Lt. Sarah Mrozek, Operations Officer and Lt. Stephen Meador, XO, brief the scientists on ship procedures and safety. During the Abandon Ship drill everyone aboard must put on a survival suit. The suits are all the same size and it was quite comical to see me, at 5 ft, wearing the same suit as someone who is 6’2” tall.  After lunch the NANCY FOSTER reaches the first dive site located in Onslow Bay, approximately 19 nautical miles, S/SE of the Beaufort Inlet. It’s exciting to watch the divers ready themselves and deploy to sea.

Divers from the NANCY FOSTER ready themselves for the first dive of the mission.
Divers from the NANCY FOSTER ready themselves for the first dive of the mission.

Day 2

Personal Log 

I thought I had the seasick thing beat because I wore the anti-seasick wristbands my student, Troy Wilkens, gave me. Unfortunately, at about 1800 hours, I became sick while discussing the mission with Paula. On her advice I took some medication and went to bed. I did not find my “sea legs” until this evening at about 1900 hours. Apparently, sleep is the best remedy but I lost most of the day. I feel well enough to begin my work so I spend what is left of the evening viewing underwater video shot during today’s dives. Divers today visited two sites at 210 Rock, 27 miles almost due south of Beaufort Inlet.

Day 3

Divers take a small boat to the dive site.
Divers take a small boat to the dive site.

Personal Log

While discussing the mission with Paula I realize that, unlike similar missions in the past, her 2007 research is multi-faceted. I will elaborate on the facets when I better understand how they all relate. At the moment I am feeling a bit overwhelmed…  Today’s dive site is located 24 nautical miles S/SE of Beaufort Inlet.

Scientific Log: What are Lionfish? 

Common name:  Lionfish, Red lionfish, and turkey fish. Scientific Name: Pterois volitans (Pisces: Scorpaenidae). Lionfish are identified by their distinctive red, maroon and white stripes; fleshy tentacles above the eyes and below the mouth; fan-like pectoral fin and long separated dorsal spines. These tropical fish can grow to approximately 17 in. / 38.0 cm or more. Native to Indo-Pacific waters, the scope of their territory is huge. They can be found from western Australia and Malaysia, to southern Japan and southern Korea, as well as throughout Micronesia.

A lionfish swims in the Atlantic Ocean, not its native habitat
A lionfish swims in the Atlantic Ocean, not its native habitat

Why Research Lionfish in North Carolina?  

Non-native (meaning invasive) to waters along the southeastern United States Coast lionfish are now established and reproducing along the continental shelf from Florida to North Carolina. Since 2000, lionfish have been primarily found in water depths greater than 130fsw (feet sea water) due to warmer water temperatures created, year round, by the Gulf Stream. Now, there is evidence the lionfish population is increasing and surviving closer to shore than researchers originally thought.

Why is the Invasion of Lionfish a Problem? 

There are several reasons lionfish are a potential problem.

  • Lionfish are members of the Scorpion fish family and known for their venomous spines. Although there have been no known fatalities caused by lionfish stings, they are reported to be extremely painful. As they increase in numbers, and move closer to shore, there is a greater risk of encounters with humans.
  • Lionfish have no known natural predators in the Atlantic. They are voracious feeders and may compete with native species for food that would be disruptive to the ecosystem. They also may pose a threat to the commercial fishing industry.
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Methea Sapp-Cassanego, August 1, 2007

NOAA Teacher at Sea
Methea Sapp-Cassanego
Onboard NOAA Ship Delaware II
July 19 – August 8, 2007

Mission: Marine Mammal Survey
Geographical Area: New England
Date: August 1, 2007

Weather Data from Bridge 
Visibility: 7nm lowering to less then 1 in fog
Wind Direction: Southerly
Wind Speed: 3-8 knt increasing to 8-13
Swell height: 3-5 feet

The flexible Jacob’s ladder rolled up for easy storage.
The flexible Jacob’s ladder rolled up for easy storage.

Science and Technology Log 

Fog has kept our sightings to a minimum over the past two days. In fact we’ve had only two sighting since my last log on July 27th. Yet despite today’s weather forecast, the fog horn has been silenced and everyone is outside enjoying the sunshine and stretching their eyes.  It is a wonder to see color other then a shade of grey!  The change in weather has also brought new sightings including 3 humpback whales, a pod of harbor porpoises, 4 right whales, a minke whale and a dozen or so pilot whales (spotted by your’s truly).  These sightings kept the observers busy as well as those involved in the launching of the zodiac (aka little grey boat) and the Tucker trawl. The morning sighting of the right whales prompted a Tucker trawl sampling in order to examine the copepod densities in the surrounding areas.

Dr. Richard Pace assists with deployment of the zodiac.
Dr. Richard Pace assists with deployment of the zodiac.

The trawl did yield a higher density of copepods then all of our previous trawls which where carried out in the absence of right whale sightings, however compared to their prior experiences most of the researchers thought that the copepod densities were still on the sparse side. The sighting of pilot whales brought the first launching of the zodiac boat.  The goal for this expedition is two fold:  1. To attain tissue samples from some of the pods larger whales so that genetic analysis and subsequent pedigrees may be chronicled and;  2. Acquire photographic images of individual dorsal fins in an effort to establish a method of identifying individuals based on their unique dorsal fin features. Such features may include nicks, scratches, unusual scars and or color patterns. Deployment of the zodiac requires numerous experienced hands and a wherewithal for safety. First the boat is loaded with all the supplies (photography equipment, biopsy tips and crossbows, and tissue specimen jars) that will be needed for the sampling and documentation of the pilot whales.  Then the crane on the back deck is used to hoist the zodiac up and over the side of the DELAWARE II.  Chief scientist, Dr. Richard Pace then climbs on board the zodiac while the crane slowly lowers the boat into the water.   Dr. Pace keeps the zodiac in position while a special flexible hanging ladder called a Jacob’s ladder is unrolled down the side of the DELAWARE II.  All other persons enter the zodiac from the DELAWARE’s back deck via the Jacob’s ladder. 

Once deployed, the researchers make final adjustments before pursuing the pilot whales.
Once deployed, the researchers make final adjustments before pursuing the pilot whales.

After the little grey boat is loaded it sets off in the direction of the whales as indicated by the observers on the fly bridge, who have all the while been communicating the whales’ position to the captain of the DELAWARE who then makes sure that the ship stays relatively close to the pod.   As one can imagine three-way communication between the fly bridge, the wheel house and the zodiac is critical for not only tracking the swiftly moving whales but also for the safety of all involved. Today was my day to be on the fly bridge as all of this was going on but if the weather holds and we keep seeing pilot whales then I too may get to ride on the zodiac.

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Elizabeth Eubanks, July 31, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 31, 2007

Weather Data from the Bridge 
Visibility: 10 miles
Air temperature: 16.0 degrees C
Sea Temperature at 700m: 5 degrees C
Sea Temperature at surface: 19.2 degrees C
Wind Direction: 300 W
Wind Speed:  15 kts
Cloud cover: Clear –stratus
Sea Level Pressure: 1013.9 MB
Sea Wave Height: 4-5 ft
Swell Wave Height: 2 ft

Science and Technology Log 

Salt, Sodium, NaCl, Salinity. How much salt is in the ocean? How much salt is in me and you? Is there a difference between the amount of salt in from the Pacific to the Atlantic ocean? How much salt is in a fish or shark? Lots of questions about salt. I spent some time again with Dr. Jeff Graham and he showed me some nice diagrams to help me understand.

Percent of average salt content – salinity. ***The top of the box marks only 10% scale subject to revision (due to lack of resources on board ship)
Percent of average salt content – salinity. The top of the box marks only 10% scale subject to revision (due to lack of resources on board ship)

Personal Log 

Yeah I added a new species to my list and yesterday I was able to get a photo of the Black Footed Albatross. While we were hauling our line he kept circling. He seemed to be very interested in the line. Some of the scientists were tossing bait to him from the hooks they were debating, but he didn’t seem that interested our old Mackerel.  Albatross are beautiful birds. They are the largest of seabirds and spend most of their time on the water. They have long, narrow wings as you can see from the photo below. One of the scientists on board was telling me that she read studies, indicating that they can travel 3,000 miles across the ocean, before they need to touch land.  Rarely does a person have the opportunity to view them from shore unless you are on some remote island when they are breading and nesting.

Black-footed albatross, tagged.
Black-footed albatross, tagged.

Look at the photo I took. You will notice a yellow band on left leg and a white one oh his right. I am told that to band these birds, you go to a remote island and just band them. They aren’t really afraid of people. – I would love to do that…. When is that cruise?  Nobody likes it when this happens, especially the sea lions. This is the only we caught this trip. They put up a huge fight and this one actually got off of the line. Hopefully, he will be fine. It is such a treat to see them out here. During this set we had a lot of half eaten bait, so we believe he was having a feast!

Steller sea lion hooked in the mouth
Steller sea lion hooked in the mouth

Question of the Day 

Salt is essential for all life. However too much salt can be toxic. Animals have special ways of regulating the salt in their bodies. How does the shark regulate its salt? Define these terms associated with salinity and adaptations an animal makes to an environment: Isosmotic,  Hypoosmotic, and  Hyperosmotic.

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.  

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Richard Coburn, July 31, 2007

NOAA Teacher at Sea
Richard Coburn
Onboard NOAA Ship Rainier
July 17 – August 1, 2007

Mission: Hydrographic Survey
Geographic Region: Alaska
Date: July 31, 2007

Weather Data from the bridge

Visibility: 10 Nautical Miles
Wind directions: 325 degrees
Wind Speed: 10 Knots
Sea Wave Height: 1-2 feet
Seawater Temperature 13.9 degrees Celsius
Sea level Pressure: 10009.2 millibars
Cloud cover: Partly Cloudy

Science and Technology log

Flora and Fauna 

Some very interesting features here in Alaska are the rocks and the various shapes and textures that they form as well as the animals that inhabit the environment.  Below are some pictures illustrating this.

The rugged coastline is abruptly ends with this beautiful cliff. There are so many wonderful vistas I have captured on this trip, each one more breathtaking than the last.
The rugged coastline is abruptly ends with this beautiful cliff. There are so many wonderful vistas I have captured on this trip, each one more breathtaking than the last.
Seals lying on a rock out cropping.
Seals lying on a rock out cropping.
Two eagles perched on the branch of a tree on a tiny island in the Bay of Escobelie
Two eagles perched on the branch of a tree on a tiny island in the Bay of Escobelie
A young deer watching intently from an island while our launch takes readings of the water depth.
A young deer watching intently from an island while our launch takes readings of the water depth.
Haul out-rocks and beaches where seals come ashore to rest or molt. This haul out was located near Timber Island. The seals watched us but did not seem to react as we got closer to the area to survey it. The waves were not large but there was lots happening here so the crew and I were very mindful of not only the animals around us but also the rocks that we could see and we were constantly on the lookout for those we could not see.
Haul out-rocks and beaches where seals come ashore to rest or molt. This haul out was located near Timber Island. The seals watched us but did not seem to react as we got closer. The waves were not large but there was lots happening here so the crew and I were very mindful of not only the animals around us but also the rocks that we could see and we were constantly on the lookout for those we could not see.
Humpback whale feeding. The humpbacks often entrap prey using “bubble nets” to corral prey in a smaller area and consume them. I am very grateful to my TAS colleague Ginger Redlinger for letting me use this picture of a humpback whale. She took beautiful video of the humpbacks while we were both out on the RAINER. She kindly shared this picture with me and I would like to include it here.
Humpback whale feeding. The humpbacks often entrap prey using “bubble nets” to corral prey in a smaller area and consume them. I am very grateful to my TAS colleague Ginger Redlinger for letting me use this picture of a humpback whale. She took beautiful video of the humpbacks while we were both out on the RAINER. She kindly shared this picture with me and I would like to include it here.

This was truly an awesome adventure.  I cannot wait to share this with my students, family, friends and colleagues.