David Amidon: Back to Work, June 10, 2017

NOAA Teacher at Sea

David Amidon

Aboard NOAA Ship Reuben Lasker

June 2 – 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean off the California Coast

Date: June 10, 2017

Weather Data: 

Latitude: 33 degrees, 43 min North;  Longitude: 119 degrees, 32 min West

Air Temp: 16.7 C    Water Temp: 16.9 C     Wind Speed: 27 knots

 

 

 

Science Log

After our quick stop into port, we were back to the sorting last night.

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Sorting tables ready for the night

I will take you though a step-by-step account of the sort.

  • A science crew member reports to the Bridge for the 30 min Marine Mammal Watch. The fishermen ready the net.
  • We arrive at the Station. Science crew goes on deck for the Outdoor Marine Mammal Watch. The fishermen put the net in the ocean and begin trawling.
  • After a 15 minute trawl, the net is hauled in and the Marine Mammal Watch ends.
  • The crew brings the sample collected in a bucket into the Science Lab.
  • Based on the size of the catch and the organisms present, the crew determines an appropriate sample size. This time we went with a 250 ml sample as there were a TON of small pyrosomes. 

  • We sort based on visual identification. 

  • People sorting will call out their counts of each species and record the numbers collected.
  • Isolate a sample of krill to be specifically analyzed. They determine the species in the sample and number of each. 

  • Determine a second sample size to analyze. At each subsequent sample, we will stop counting specific organisms, such as tonight when we stopped counting the pyrosomes because we had enough data to extrapolate a value for the number collected. Then we stopped counting anchovies, etc. until we are just looking for outliers, or creatures in such low abundance an estimate would not be acceptable.

 

  • Repeat the steps until we have gone through the entire catch.
  • Afterwards, information is logged into the database and representative samples are measured and recorded.

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    Sorting the catch

  • The last step is to prepare samples for onshore analysis. Many labs have a standing request if samples are available, such as 5 Hake or a sample of anchovies. Specifically, the juvenile rockfish will undergo DNA analysis as well as having otoliths removed for further analysis. Basically, fish grow these little ear bones with rings like a tree. The more rings, the longer a fish has been alive. Therefore, the researchers can determine the age and growth rates of the fish based on these features. 

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An Argonaut – basically an octopus with a shell

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A Pyrosome under the microscope. This is really a COLONIAL organism, not truly multicellular.

 

Personal Log

Thursday, June 8th

We arrived in port today, so nothing on the science end to report. As we conducted the trawls the night before, I was still on the night schedule and missed out on a chance to explore San Diego. However, we did go to dinner with the other science personnel that work the daytime shifts, which was nice.

Friday, June 9th

The repairs went well and we returned to the ocean. We arrived at a station just after midnight and worked on 3 trawls. Waves started picking up during the shift. It is supposed to be windy again, which means the waves action will increase too.

Saturday, June 10th

Did I mention the winds were going to pick up? Wow. They were right – and tomorrow won’t be any better. I put the patch back on, which is unfortunate because my major side effect is that it really makes me tired. Or it could be that I have a tendency to visit the Flying Bridge to watch the sun come up.

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View of sunrise from the Flying Bridge

Tonight we caught adult anchovies – and a lot of them. We ended saving a lot of the catch for other labs and for bait.

 

DID YOU KNOW?

At night, the officers piloting the ship keep all the lights off on the bridge. All displays are illuminated with red lights. In this way, the people on the bridge will keep their eyes adjusted to the dark and they will be better prepared to spot potential problems on the water.

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At night, bridge displays are illuminated with only red light, which keeps officers’ eyes better adjusted to the dark.

 

Mary Murrian: My First Days in Dutch Harbor, July 6, 2014

NOAA Teacher at Sea 

Mary Murrian

Aboard NOAA Ship Oscar Dyson

July 4 – 22, 2014

Mission: Annual Walleye Pollock Survey

Geographical Area of Cruise: Bering Sea North of Dutch Harbor

Date: Sunday, July 6th, 2014

Weather Data from the Bridge:

Wind Speed: 6 kts

Air Temperature: 8.6 degrees Celsius

Weather conditions: Hazy

Barometric Pressure: 1009.9

Latitude: 5923.6198  N

Longitude: 17030.6395  W

 

Science and Technology Log

Part One of the Survey Trawl: Getting Ready to Fish

This is a picture of a pollock from our first trawl.

This is a picture of a pollock from our first trawl.

Today is my second day aboard the Oscar Dyson.  We are anxiously waiting for the echosounder (more information on echosounder follows) to send us a visual indication that a large abundance of fish is ready to be caught.  The point of the survey is to measure the abundance of Walleye Pollock throughout specific regions in the Bering Sea and manage the fisheries that harvest these fish for commercial use to process and sell across the world.  The Walleye Pollock are one of the largest populations of fish.  It is important to manage their populations due to over-fishing could cause a substantial decrease the species.  This would be detrimental to our ecosystem.  The food web [interconnecting food chains; i.e. Sun, plants or producers (algae), primary consumers, animals that eat plants (zooplankton), secondary consumers, animals that eat other animals (pollock), and decomposers, plants or animals that break down dead matter (bacteria)] could be altered and would cause a negative effect on other producers and consumers that depend on the pollock for food or maintain their population.

The main food source for young pollock is copepods, a very small marine animal (it looks like a grain of rice with handle bars).  They also eat zooplankton (animals in the plankton), crustaceans, and other bottom dwelling sea life.  On the weird side of the species, adult pollock are known to eat smaller pollock.  That’s right, they eat each other, otherwise known as cannibalism.  Pollock is one of the main food sources for young fur seal pups and other marine life in Alaskan waters.  Without the pollock, the food web would be greatly altered and not in a positive way.

How do we track the pollock?

Pollock

Pollock

Tracking begins in the acoustics lab.  Acoustics is the branch of science concerned with the properties of sound.  The acoustics lab on board the Oscar Dyson, is the main work room where scientists can monitor life in the ocean using an echosounder which measures how many fish there are with sound to track the walleye pollock’s location in the ocean.  They also use the ships’s GPS (Global Positioning System), a navigation system, to track the location of the NOAA vessel and trawl path.

Echo Sounder

Sonar Screen

What is sonar and how does it work? 

Sonar (sound ranging & navigation;  it’s a product of World War II) allows scientists to “see” things in the ocean using sound by measuring the amount of sound bouncing off of objects in the water.  On this survey, sonar images are displayed as colors on several computer monitors, which are used to see when fish are present and their abundance.  Strong echoes show up as red, and weak echoes are shown as white.  The greater the amount of sound reported by the sonar as red signals, the greater the amount of fish.

Echo Sonar Screen Showing the patterns of echos from the ocean.

Echo Sonar Screen Showing the patterns of echos from the ocean.

How does it work?  There is a piece of equipment attached to the bottom of the ship called the echosounder.  It sends pings (sound pulses) to the bottom of the ocean and measures how much sound bounces back to track possible fish locations.   The echo from the ocean floor shows up as a very strong red signal.   When echoes appear before the sound hits the ocean floor, this represents the ping colliding with an object in the water such as a fish.

The scientists monitor the echosounder signal so they can convey to the ships’s bridge and commanding officer to release the nets so that they can identify the animals reflecting the sound.  The net catches anything in its path such as jellyfish, star fish, crabs, snails, clams, and a variety of other fish species. Years of experience allows the NOAA scientists the ability to distinguish between the colors represented on the computer monitor and determine which markings represent pollock versus krill or other sea life.  We also measure the echoes at different frequencies and can tell whether we have located fish such as pollock, or smaller aquatic life (zooplankton). The red color shown on the sonar screen is also an indicator of pollock, which form dense schools.  The greater amount of red color shown on the sonar monitor, the better opportunity to we have to catch a larger sample of pollock.

The Science Team Wonderful group of people.

Once we have located the pollock and the net is ready, it is time to fish.  It is not as easy as you think, although the deck hands and surveyors make it look simple.  In order to survey the pollock, we have to trawl the ocean.  Depending on the sonar location of the pollock, the trawl can gather fish from the bottom of floor, middle level and/or surface of the ocean covering preplanned locations or coordinates. Note: Not all the fish caught are pollock.

The preplanned survey path is called transect lines with head due north for a certain distance. When the path turns at a 90 degree angle west (called cross-transect lines) and turns around another 90 degree angle heading back south again.  This is repeated numerous times over the course of each leg in order to cover a greater area of the ocean floor.  In my case we are navigating the Bering Sea.  My voyage, on the Oscar Dyson is actually the second leg of the survey, in which, scientists are trawling for walleye pollock.  There are a total of three legs planned covering a distance of approximately 6,200nmi (nautical miles, that is).

Trawling is where we release a large net into the sea located on the stern (the back of the boat).  Trawling is similar to herding sheep.  The fish swim into the net as the boat continues to move forward, eventually moving to the smaller end of the net.  Once the sonar screen (located on a computer monitor) shows that we have collected a large enough sample of pollock, the deck hands reel the net back on board the boat.

 

The crew are beginning to release the trawl net.

The crew are beginning to release the trawl net.

This is the stern of the boat where the trawl net gets released into the ocean.

This is the stern of the boat where the trawl net gets released into the ocean.

We have caught the fish, now what?  Stay tuned for my exciting experience in the wet lab handling the pollock and other marine wild life.  It is most certainly an opportunity of a lifetime.

Personal Log

What an adventure!

I was lucky enough to spend a day exploring Dutch Harbor, Alaska before departing on the pollock survey across the Bering Sea. It took me three plane rides, several short lay-overs and and a car ride to get here, a total of 16 hours. There is a four hour time difference between Dutch Harbor and Dover, Delaware. It takes some getting used to, but definitely worth it. The sun sets shortly after 12:00 midnight and appears again around 5:00 in the morning. Going to sleep when it’s still daylight can be tricky. Thank goodness I have a curtain surrounding my bed. Speaking of the bed, it is extremely comfortable. It is one of those soft pillow top beds. Getting in and out of the top bunk can be challenging. I haven’t fallen yet.

My bed is the top bunk.

My bed is the top bunk.

During my tour through the small town of Dutch Harbor, I have encountered very friendly residents and fishermen from around the world.  I was fortunate to see the U.S. Coast Guard ship Healy docked at the harbor. What a beautiful vessel.  Dutch Harbor has one full grocery store (Safeway) just like we have in Delaware, with the exception of some of the local Alaska food products like Alaska BBQ potato chips. They have a merchant store that sells a variety of items ranging from food, souvenirs, clothing, and hardware. They have three local restaurants and a mom and pop fast food establishment. One of the restaurants is located in the only local Inn the Aleutian hotel, which also includes a gift shop. Dutch Harbor is home to several major fisheries. Dutch Harbor is rich in history and is home to the native Aleutian tribe. I took a tour of their local museum. It was filled with the history and journey of the Aleutian people. While driving through town, I got a chance to see their elementary and high school. They both looked relatively new. Dutch Harbor is also home to our nation’s first Russian Orthodox Church. Alaska is our 50th state and was purchased from Russia in 1867.

Me and the Oscar Dyson

Mary Murian in front of the Oscar Dyson

A very funny photo of me in my survival suit.

A very funny photo of me in my survival suit.

One of the coolest parts of my tour was walking around the area known as the “spit”. The “spit” is located directly behind the airport. I’m told it is called the “spit” because the land and water are spitting distance in length and width. We walked along the shoreline and discovered hundreds of small snails gathered around the rocks. We also found hermit crabs, starfish, sea anemones, jellyfish, and red algae. We saw red colored water, which is a bloom or a population explosion of tiny algae that get so thick that they change the color of the water.

One of numerous amazing views in Dutch Harbor

One of numerous amazing views in Dutch Harbor

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Starfish

Another animal in abundance in Dutch Harbor is the bald eagle. There is practically one on every light post or tall structure. Often the bald eagles are perched in small groups. Watch out: if you walk too close to a nesting mother, she will come after you. They are massive, regal animals. I never get tired of watching them.

We had to watch our step, the snails were everywhere along the shoreline of the Spit.

We had to watch our step, the snails were everywhere along the shoreline of the Spit.

A bald eagle hoping to find some lunch.

A bald eagle hoping to find some lunch.

Russian Orthodox Church in Dutch Harbor, AK

Russian Orthodox Church in Dutch Harbor, AK

Did You Know?

Did you know that Alaska’s United States Coast Guard vessel has the ability to break through sea ice? 

This is especially helpful if you want to study northern areas, which are often ice covered, in the winter, and to assist a smaller boat if it gets trapped in the ice.

U.S. Coast Guard Ship Healy docked at the Spit.

U.S. Coast Guard Ship Healy docked at the Spit.

Did you know that scientists set time to Greenwich Mean Time (GMT) which is the time in a place in England?

This reduces confusion (e.g. related to daylight savings, time zones) when the measurements are analyzed.

Key Vocabulary:

Carnivore

Primary Consumer

Secondary Consumer

Nautical Miles

Trawling

Stern

Acoustics

Decomposers

Echosounder

Meet the Scientist:

Alex De Biologist

Alex De Robertis Chief Scientist

Leg II Chief Scientist Dr. Alex De Robertis

Title: NOAA Research Fishery Biologist (10 years)

Education:  UCLA Biology Undergraduate Degree

Scripps Institute Oceanography San Diego, CA PhD.

Newport, Oregon Post Doctorate work

Living Quarters:

Born in Argentina and moved to England when one-year old.

Lived in Switzerland and moved to Los Angeles,CA at the age of 13.

Currently lives in Seattle, Washington, and he has two kids aged one and five.

Job Responsibilities:

Responsible for acoustic trawl surveying at Alaska Fisheries Science Center

Was able to help with the Gulf of Mexico oil spill clean-up using the same echo sonar used on trawl surveys.

What is cool about his work:

He enjoys his work, especially the chance to travel to different geographic locations and meet new people.  “You never know what you are going to encounter; there is always a surprise or curve ball, when that occurs you adjust and just go with it”.

In the near future, he would love to see or be part of the design for an autonomous ocean robot that will simplify the surveying process.

He has been interested in oceans and biology since a small boy.  He remembers seeing two divers emerge from the sea and was amazed it was possible.

Chris Henricksen: Doing Science at Sea, May 12, 2014

NOAA Teacher at Sea

Christopher Henricksen

Aboard NOAA Ship Henry B. Bigelow

May 6 – May 16, 2014

Geographical area of cruise: Georges Bank
Mission: Spring Bottom Trawl & Acoustic Survey
Date: May 11, 2014
Air Temp: 11.2°C (52.16°F)
Relative Humidity: 100%
Wind Speed: 21.9mph
Barometer: 1010.5mb

Science and Technology Log

Here’s what a typical watch aboard the Henry B. Bigelow looks like.  Upon assuming the watch, which in my case means beginning work at midnight, the science team gets a rundown of what happened during the previous watch.  When the ship nears its next station (where it will drop the net and begin trawling), the area is surveyed to ensure that it is clear of lobster traps and large rocks before readying the nets for trawling.  Think of the trawl nets in terms of really large butterfly nets, except these nets also contain a set of sensors that tell the science team and the Officer of the Deck (the officer in charge of driving the ship) information about how deep the net is, how fast it’s traveling, etc..  The ship’s deckhands lower the nets from the aft (rear) deck of the ship into the water and then closely monitor them until reaching a specified depth.  With the trawl nets in place, the ship steams at 3 knots for about twenty minutes, pulling the nets along and catching fish and other marine life.  Once the trawl is complete, the net is hauled aboard and it’s time for the scientists to get involved.

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Hauling the trawl net aboard the Henry B. bigelow

checker

Chris Henricksen

Using a crane, the net is swung over a large stainless steel hopper called the checker.  A scientist working the checker, then pushes the captured organisms onto a conveyor belt, which moves them inside the ship to the wet lab.  In the wet lab, scientists and volunteers (like me) stand along a long conveyor, sorting the catch by species and, sometimes, by sex or size, into a set of buckets.  After the catch is sorted, the buckets are consolidated and placed on another conveyor belt, which moves the buckets to the Watch Chief’s station.  The Watch Chief scans a barcode on the side of each bucket, and uses a computer to assign a species to that barcode.  The barcoded buckets are each filled with a different organism then moved to any one of three cutter stations for processing. The Cutter scans the barcode of an available bucket, which tells the computer at his or her station some basic information about the organism, such as its scientific and common names, and how much the bucket weighs.  The computer also tells the Cutter what sorts of protocols need to occur on that organisms (weighing, measuring, checking stomach contents, determining sex).  As the Cutter processes the organism, the Recorder, standing at a computer screen next to the Cutter,  assists the Cutter by inputting measurement and other data into the computer system.  Often, extra instructions pop up on the screen, instructing the Cutter that a scientist has requested that we collect specimens from an organism.  Otoliths (ear bones from fish) are collected frequently, but sometimes a request is made to freeze or preserve an organism.  Some organisms even go in a live holding tank so the scientist can have a living specimen when the ship returns to port.  This entire process can take anywhere from one hour to several, depending on the amount fish and the types of processing required.

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Scientists sorting organisms for survey

Personal Log

Well, yesterday (Saturday) was a rough one for yours truly.  We ran into some higher seas, and the ship’s rocking and rolling made me sick as a dog.  So much for that Navy experience helping me in this regard…  Oh, well, that’s part of life at sea.  Everyone was very kind about it. one of my watchmates even fetched some crackers for me, which helped.  Feeling much better today. Here are a few pictures representing life aboard the Henry B. Bigelow (at least as I live it):

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The Galley

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Dinner menu – good food!

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My stateroom. I sleep in the bunk with the open curtains

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The Head (bathroom) in my stateroom

Suzanne Acord: Learning the Ropes off the Kona Coast, March 24, 2014

NOAA Teacher at Sea
Suzanne Acord
Aboard NOAA Ship Oscar Elton Sette
March 17 – 28, 2014

Mission: Kona Area Integrated Ecosystems Assessment Project
Geographical area of cruise: Hawaiian Islands
Date: March 24, 2014

Weather Data from the Bridge at 14:00
Wind: 7 knots
Visibility: 10 nautical miles
Weather: Hazy
Temperature: 24.3˚ Celsius

Science and Technology Log

Trawl Operations on the Sette

Monitoring the acoustics station during our trawl operations.

Monitoring the acoustics station during our trawl operations.

Trawling allows scientists to collect marine life at prescribed depths. Our highly anticipated first trawl begins at 21:06 on March 23rd. Hard hats, safety vests, and extremely concerned crew members flock to the stern to prepare and deploy the trawl net. Melanie is our fearless trawl lead. Once we bring in our catch, she will coordinate the following tasks: Place our catch in a bucket; strain the catch; weigh the total catch; separate the catch into five groups (deep water fish, cephalopods, crustaceans, gelatinous life, and miscellaneous small life); count the items in each group; weigh each group; measure the volume of each group; take photos of our catch; send the entire catch to the freezer.

Our trawling depth for this evening is 600 meters. This is unusually deep for one of our trawls and may very well be a hallmark of our cruise. We are able to deploy the net with ease over our target location, which is located within the layers of micronekton discussed in an earlier blog. The depth of the net is recorded in the eLab every 15 minutes during the descent and ascent. Once the trawl is brought back up to the stern, we essentially have a sea life sorting party in the wet lab that ends around 05:00. Our specimens will be examined more thoroughly once we are back in Honolulu at the NOAA labs. Throughout this cruise, it is becoming clearer every day that a better understanding of the ocean and its inhabitants can allow us to improve ocean management and protection. Our oceans impact our food sources, economies, health, weather, and ultimately human survival.

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Science Party Interview with Gadea Perez-Andujar

Ali and Gadea anticipate the raising of the HARP.

Ali and Gadea anticipate the raising of the HARP.

The University of Hawaii and NOAA are lucky to have Gadea, a native of Spain, on board the Sette during the 2014 IEA cruise. She initially came to Hawaii to complete a bachelor’s degree in Marine Biology with Hawaii Pacific University. While a HPU student, she studied abroad in Australia where she received hands-on experience in her field. Coursework in Australia included fish ecology and evolution and coral reef ecology, among other high interest courses. Between her BA and MA, Gadea returned to Spain to work on her family’s goat farm. She couldn’t resist the urge to return to Hawaii, so she left her native land yet again to continue her studies in Hawaii. Gadea is now earning her master’s degree in marine biology with the University of Hawaii. In addition to her rigorous course schedule, she is carrying out a teaching assistantship. To top off her spring schedule, she volunteered to assist with Marine Mammal Operations (MMO) for the 2014 IEA cruise. She assists Ali Bayless, our MMO lead, during small boat deployments, HARP operations, and flying bridge operations.

Gadea’s master’s studies have increased her interest in deep water sharks. More specifically, Gadea is exploring sharks with six gills that migrate vertically to oxygen minimum zones, or OMZs. This rare act is what interests Gadea. During our IEA cruise, she is expanding her knowledge of the crocodile shark, which has been known to migrate down to 600-700 meters.

Once her studies are complete in 2015, Gadea yearns to educate teachers on the importance of our oceans. She envisions the creation of hands-on activities that will provide teachers with skills and knowledge they can utilize in their classrooms. She believes teacher and student outreach is key. When asked what she appreciates most about her field of study, Gadea states that she enjoys the moment when people “realize what they’re studying can make the world a better place.”

Personal Log

Morale in the Mess 

Jay displays a cake just baked by Miss Parker. I can't wait to try this tonight at dinner.

Jay displays a cake just baked by Miss Parker. I can’t wait to try this tonight at dinner. We will also be eating Vietnamese soup, salad, and macaroni and cheese with scallops.

The mess brings all hands together three times a day and is without a doubt a morale booster. Hungry crew members can be found nibbling in the mess 24/7 thanks to the tasty treats provided by Jay and Miss Parker. Jay and Miss Parker never hesitate to ensure we are fed, happy, and humored. It is impossible to leave the galley without a warm feeling. A few of my favorite meal items include steak, twice baked potatoes, a daily fresh salad bar, red velvet cookies, and Eggs Benedict. Fresh coffee, juice, and tea can be found 24/7 along with snacks and leftovers. At the moment, my shift spans from 15:00 to 00:00, which is my dream shift. If we need to miss a meal, Jay ensures that a plate is set aside for us or we can set aside a plate for ourselves ahead of time.

Did you know?

Merlin Clark-Mahoney gives me a tour of the engineering floor.

Merlin Clark-Mahoney gives me a tour of the engineering floor.

Did you know that NOAA engineers are able to create potable water using sea water? The temperature of the water influences the amount of potable water that we create. If the sea water temperature does not agree with our water filtration system, the laundry room is sometimes closed. This has happened only once for a very short period of time on our cruise. NOAA engineers maintain a variety of ship operations. Their efforts allow us to drink water, shower, do laundry, enjoy air conditioning, and use the restroom on board–all with ease.

Paul Ritter: Teamwork, July 20, 2013

NOAA Teacher at Sea
Paul Ritter
Aboard the NOAA Ship Pisces
July 16– August 1, 2013 

Mission: Southeast Fishery-Independent Survey (SEFIS)
Geographical area of cruise: southeastern US Atlantic Ocean waters (continental shelf and shelf-break waters ranging from Cape Hatteras, NC to Port St. Lucie, FL)
Date: July 20, 2013

Weather Data from the Bridge

7-20-13 ship data

Science and Technology Log

OLYMPUS DIGITAL CAMERAEach day the fish traps aboard the NOAA Ship Pisces are baited and prepared with cameras, and sent to the ocean floor where they must sit for ninety minutes.  It is necessary to keep this time consistent for all locations and traps so we can compare apples to apples.  We call this a “control variable”.  The particular parameter that someone measures that is a constant and non-changing point of comparison in an experiment or scientific observation is a controlled variable for consistency.

After being on the bottom for the time allotted, the officers on the bridge drive the ship back to the number one trap and drives alongside the trap’s buoys.  Approximately, half way down the ship is the side sampling deck.  From the side sampling station, approximately halfway down the ship, we take a grappling tied to a long rope and hurl it over the side, aiming between the two buoys. It is important that we hit it on the first attempt.

If we miss, the ship has to take vital time to maneuver around to make another attempt at the buoys.  Have we missed?  Honestly, yes but only a couple of times.  If we have done our job correctly, we pull in the grappling hook and with it the buoys, and rope.  The buoys are then unhooked from the rope and the rope is threaded into a pot hauler, which is a large tapered wheel that grabs onto the rope without slipping.  The pot hauler then hydraulically pulls the rope and trap up to the surface.  Once at the surface, another hook and winch is connected to the trap and the entire rig is pulled up on the side sampling deck.  It is at this time that our team attacks the trap by taking off the cameras and unloading its cargo of fish.  If we have fish, they are taken to the wet lab and all the measurements are taken.  Once empty, the trap is carried to the main aft deck and prepared for the next round of trapping.  It really is a lot of heavy work but it is all worth it to understand the ecology of our ocean reefs.

Personal Log

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Patrick and I Working on a Red Snapper

7-20-13

Today started around 12:30 am.  It was not something that I intended to do.  The night before we went to bed around 10:00 pm.  I was sore and very tired from the long and hard day we had fishing.  For some reason I woke up and looked out the window and saw that it was very bright outside.  I thought it was daybreak and it was time to get up.  I looked at my clock and it said it was 12:30.  But that could not be.  It was too light outside for just pass midnight.  I actually thought my clock was broke so I fired up my computer to check the time.  Sure enough, it was 12:30.

The moon was so bright and reflecting off of the water in a way that the light was coming right into my room.  Crazy.  After the confusion, I finally made it back to sleep.  Around 5:30 my internal alarm clock went off.  I actually never need an alarm clock to wake up, ever.  For some reason I always have been able to just think about when I want to get up and I do.  Anyway, I got up, brushed my teeth and headed to work.

OLYMPUS DIGITAL CAMERA

Our Team in the Wet Lab

At 6:15, I met up with my brothers and sisters of the trap setting team which consists of Doug Devries – NOAA Scientist; Patrick Raley – NOAA Scientist; Jenny Ragland – NOAA Scientist; Julie Vecchio – volunteer Scientist; Zach Gillum – graduate student / Scientist, and me – the new guy scientist.  Have you ever watched Star Trek?  Usually each show’s scientific mission consists of Captain Kirk, Mr. Spock, Bones, Lt. Uhura, who are all in one color uniform, and a new guy who is in the red shirt.  The mission goes something like this.  Captain Kirk will say “Mr. Spock go check out the nondescript rock.  Bones see if you can get some readings on that green flower over there, Uhura please open up a channel to the ship, and New Guy, go check out that purple pulsating blob over next to the cliff.”  I really hope these guys don’t watch Star Trek…..

To be completely honest, it is nothing like Star Trek at all.  Our team is amazing.  I am very humble that they have accepted me into their family.  They are so fun to be around and I could not be more thankful for their friendship and guidance.  Each of us has to play many vital roles in the mission. This expedition would not work if we did not have each other to rely on.  I don’t want to let my teammates down, and I will do anything to make sure that does not happen.

Anyway, back to the traps…..  We set our first set of traps of the day and ninety minutes later we discovered that our return was not very good.  Our second set of traps, on the other hand, were much better and netted many fish.  Some of the fish included Black Sea Bass, Grey Trigger, Tomtate, White Grunt, and one of the most desirable fish on the market, the Red Snapper.  Red Snapper is a fish that can grow upwards of 40 lbs. and live as long as 50 years if it can escape being caught.  This amazingly beautiful red fish has had much pressure from commercial and sport fishermen and as a result their numbers have dwindled.  After speaking with Zeb Schobernd, our mission’s Chief Scientist, it is his hope that due to strict regulation of the harvest of the species, we will see an increase of the population.  The data we are collecting will help develop a better survey for reef fish populations in the future, especially grouper and red snapper..  Lunch was at 11:00 and what a lunch it was.  Crab legs, and prime rib.  Man, the crew of the Pisces eats very well and I am thankful.  My wife is a great cook, and I would say that the ship’s chief steward is a close second.  After lunch, we quickly we set our third series of traps and were able to increase our catch exponentially.  Dinner consisted of Jamaican jerk chicken, pork roast, green beans, lettuce salad, and cheese cake.  After dinner I took a little time to visit the team in the acoustics lab.  The acoustics lab is responsible for mapping out the ocean floor to determine where we should put traps out the next day.  I will probably touch more on them in my next blog.

Swabbing the deck

Swabbing the deck

Did you know?

Did you know that NOAA ships do not just stay in one particular location of the world?

The Pisces has sailed from Canada, to the Gulf of Mexico, and down to Venezuela and back.  Not to mention the Pisces is one of the fastest ships in the NOAA fleet capable of reaching speeds greater than 17 knots with a following current.

Patty McGinnis: Fishing for Science, May 16, 2013

NOAA Teacher at Sea
Patty McGinnis
Aboard R/V Ocean Starr
May 20 – 29, 2013

Mission: Juvenile Rockfish Survey
Geographical Area of Cruise: Pacific Coast
Date: May 9, 2013

Personal Log

Hi everyone! I’m thrilled to have been selected for this opportunity of a lifetime! As a NOAA Teacher at Sea, I’m looking forward to learning about the oceans and to sharing that knowledge with you. I’ll be aboard R/V Ocean Star assisting scientists with their work in conducting a Juvenile Rockfish Survey. You can learn more about this important scientific work by clicking here. In my reading, I have found out that there are many species of rockfish, all of which are a commercially valuable groundfish. Since fisheries are a renewable resource, keeping track of the rockfish population is important for managing it wisely. This will involve trawling at night and then analyzing the catch–as my adventure unfolds I will be able to provide you with more details.

I currently work as a gifted support specialist at Arcola Intermediate School in Eagleville, Pennsylvania. I have also taught science (mostly biology) for over 20 years. My favorite part of teaching is watching a student’s face light up with excitement over a new idea. I’m passionate about my work–especially when it involves educating students about ecology and the role man plays in protecting natural resources. I also enjoy traveling and learning about how local people utilize the land–last summer I had an opportunity to go to Kenya. In the picture I am listening to a transmitter that is picking up signals from a radio-collared lion.

I know my experience as a Teacher at Sea will help me to better understand the type of work that a fishery biologist conducts and that I’ll also gain insight into the various careers that are necessary for supporting this research. I’ll be posting to this blog as often as I can–I hope you follow along!

Here I am listening for lions

Here I am listening for lions

Stacey Jambura: Not Your Average Fish Tail Tale July 16, 2012

Stacey Jambura
July 6 – 17, 2012
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Geographical Area of Cruise: Gulf of Mexico
(You can view the NOAA ShipTracker here: http://shiptracker.noaa.gov/shiptracker.html)
Date: July 16, 2012
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Weather Details from Bridge: (at 15:45 GMT)
Air Temperature: 28.8 ◦C
Water Temperature: 28.80 ◦C
Relative Humidity: 70 %
Wind Speed: 8.56 kts
Barometric Pressure: 1,017.68 mb

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Science and Technology Log

The Trawling Net

Trawling Net

Trawling Net

The trawling net is used to collect groundfish samples. It is deployed from the stern of the ship and towed for 30 minutes. The net is towed back in and brought onboard to be emptied. During this process it is important that everyone at the stern of the ship is wearing a hard hat and a personal flotation device in the unlikely event that something goes wrong. Once the net is lifted over the side of the ship and brought on deck, it is untied and emptied into large baskets.

Hauling the trawling net back onboard.

Hauling the trawling net back onboard.

The baskets are weighed before they are brought inside and emptied onto a large conveyor belt. The fish are spread out on the belt so they are easier to sort. The fish are sorted into individual baskets by species. Once all of the fish are sorted, we count them and find their total weight. We then work through each basket and measure, weigh, and identify the sex of each specimen. Once we are done measuring the fish, some are bagged, labeled and frozen for scientists to examine back at their labs. The rest of the fish are thrown back into the ocean.

Emptying the trawling net into baskets

Alex & Reggie emptying the net into baskets.

We found many different species of vertebrates and invertebrates (fish with a spine, and those without a spine). Here are some of the fish we found:

Vertebrates

Invertebrates

It is important to document the length and weight of each fish collected in a trawl. We used special measuring boards and scales to collect this data. There are two boards, each is connected to one computer. When we measure the fish, we use a magnetic wand. When it touches the board, it sends a signal to the computer which records the length of the fish. Fish are measure at one of three lengths: fork length, standard length, and total length. Once the fish are measured, they are placed on a scale to be weighed. The scale is also connected to the computer and records the weight of the fish.

Scale

Scale

Boards

Measuring Boards

Fork length is measured from the inside of the tail of the fish.

Fork length is measured from the inside of the tail of the fish.

Standard length is measure from the base of the tail of the fish.

Standard length is measure from the base of the tail of the fish.

Total length is measured from the tip of tail of the fish.

Total length is measured from the tip of tail of the fish.

Personal Log

Day 12 – July 16th

Today is my last day at sea before we dock in Pascagoula,Mississippi. It has been quite a journey and I can’t believe it is already over. Though the work was hard and hot (and many times smelly), it was an amazing experience and I hope to one day have the opportunity to experience it again! I have met many wonderful people and hope to keep in touch with them! I have learned so much about our oceans and the life within them. I hope that my blogs have given you a glimpse into what life onboard the Oregon II is like and I hope that you have learned something about the work that takes place on the open seas.

Map of our Survey

Map of our Survey

Although this is my last day on the Oregon II, keep an eye out for one final blog. There will be interviews with the crew of the Oregon II, what their job is, why they chose this line of work, the steps they took to become a crew member of the Oregon II, and words of advice for students everywhere!