Susie Hill, July 25, 2007

NOAA Teacher at Sea
Susie Hill
Onboard NOAA Ship Albatross IV
July 23 – August 3, 2007

Mission: Sea Scallop Survey
Geographical Area: North Atlantic Ocean
Date: July 25, 2007

Weather Data from the Bridge 
Air Temperature: 20.8 ° C
Sea Temperature: 21.8 ° C
Relative Humidity: 93%
Barometric Pressure: 1022.4 millibars
Wind Speed: 5 knots
Water Depth: 58 meters
Conductivity: 44.91 mmhos
Salinity: 31 ppt

Science and Technology Log 

It’s the morning after my first shift, and surprisingly, I still have energy! It was so much fun! It took us about 8 hours to get to our first tow station, and then we went right to work. At each tow station, the dredge is emptied out onto the deck for us to sort. In addition to the standard sampling to assess the stock, scientists request certain species samples for additional research before each cruise. The samples that are being pulled this trip are scallops, skates, hake fish, starfish (some of us call them sea stars), and monkfish (or goosefish). So, we pull these out of the catch and the rest is thrown back out to sea. It’s a race from there to get all of the research done before the next tow. The scientists everywhere (including me!) are weighing , dissecting, and recording the data into the FSCS (Fisheries Scientific Computer System). It’s awesome!

One of my stations was to help take the data on the sea scallops. We measured the gonad, meat, and viscera (pretty much everything else in the shell) weights of 5 randomly chosen sea scallops to determine the sex and shell height/meat weight relationships. The shells will be measured back at Woods Hole to determine the age. Do you know how scientists determine the age of a scallop? They count the rings on the outer shell just like you would to determine the age of a tree. We also collected these samples to help with a study being done by Scientist Stacey Etheridge and Melissa Ellwanger from FDA (Food and Drug Administration) to determine PSP (paralytic shellfish poisoning) levels. They are also testing for Alexandrium sp., a dinoflagellate phytoplankton, in the water sample that can also cause PSP in humans.

It is pretty cool that the scientists let us help out at the different stations so we could get a hand in everything that is going on. When I came on, I thought that we were only going to be doing one study- studying just scallops. It turns out that we get to experience so much more!

Claude Larson, July 25, 2007

NOAA Teacher at Sea
Claude Larson
Onboard NOAA Ship Albatross IV
July 23 – August 3, 2007

Mission: Sea Scallop Survey
Geographical Area: North Atlantic Ocean
Date: July 25, 2007

Weather Data from the Bridge 
Air Temperature: 21.7° C
Water Temperature: 22.9
Relative Humidity 93%
Wind Speed: 10 knots
Wind Direction: SE 120

Jakub Kircun teaches Claude Larson how to insert the probe that measures inclination in the top of the dredge equipment.
Jakub Kircun teaches Claude Larson how to insert the probe that measures inclination in the top of the dredge equipment.

Science and Technology Log 

Today was the beginning of our first 12 hour watches. The tows were relatively well spaced which allowed for ample clean up time between tows and even for a little down time as we steamed for over an hour and I have a few minutes to write this log entry.

As I learn the skills needed to be useful on the Scallop Survey, I want to give you an idea of how a tow is carried out. The bridge generally gives us a ten minute alert before a tow over the all call system.  From that point we can finish up what we are doing and prepare for the tow. A crew member operates a huge winch and block and tackle that moves a thick metal cable. The cable is attached to a large metal hook that is attached to an 8 foot wide dredge net. The net is raised from the aft deck of the ship and put in the water.  The dredge net is then towed for fifteen minutes and then lifted onto the deck.  At this time, a probe that measures inclination is inserted in the dredge rigging and information about the collection of the tow is recorded and loaded onto another computer for later use.

While the probe is being read, someone takes a picture of the pile of organisms on deck with a small whiteboard with important information.  This information includes the station number, stratum and tow number, as well as whether this area is open or closed to commercial fishing.

The watch crew then brings baskets and buckets over to the edges of the pile and kneels on cushions to sift through the collected material.  We sort the collection into sea scallops, fish and, on each third tow, we also collect crabs. After a few minutes we shift areas and continue to look for certain animals, this helps us to make sure we have found all of the organisms we are looking for.  The fish are then further sorted by species.  The watch chief weighs each separate species and records that information on the FSCS, Fisheries Scientific Computer System. There are three FSCS stations and we all get to work at one of them.  The computer allows you to take the scallop or fish and lay it on a long board. The organism is held along the front panel of the system and a magnet is placed at the other end. The magnet causes the computer to automatically record the length of the scallop or fish. From there some of the scallop shells are cleaned for a scientist back in Woods Hole, Dvora Hart, and carefully labeled and placed in a cloth bag. Some of the scallops are also dissected for an FDA study on PSPs, paralytic shellfish poisoning. When ever we catch a monkfish, also known as a goosefish, one of the scientists on the watch crew dissects it for vertebrae for a study they are doing on aging the fish and its reproductive stage.

Once all the organisms are measured, weighed, dissected or cleaned, the remainder of the pile is shoveled in large baskets and thrown back into the ocean.  Each basket and bucket is rinsed as is each FSCS station.  If another tow is arriving shortly, the watch crew prepares for repeating this process. The steps happen in relatively that order, however they also occur in a sort of unison and the watch crew starts to form a rhythm.  The watch chief and veteran crew members help any of the new folks on board, which is great since we are sometimes unsure what to do next or how to do a new task.  The old saying of many hands make light work definitely applies here. With each tow there are surprises to dig for. Sometimes you get to see large egg cases or beautiful shellfish and unusual fish.

With all of this said, the all call has just given us a ten minute to station call.  I must get ready for whatever treasures will be brought up with this collection.

Claude Larson, July 24, 2007

NOAA Teacher at Sea
Claude Larson
Onboard NOAA Ship Albatross IV
July 23 – August 3, 2007

Mission: Sea Scallop Survey
Geographical Area: North Atlantic Ocean
Date: July 24, 2007

Weather Data from the Bridge 
Wind speed: 13 knots SW
Atmospheric Pressure: 1019 mB
Cloud cover: 4/8 cirrus, stratus and cumulous
Air temperature: 18.3º C 65º F
Water temperature: 18.9 º C 66 º F

Teacher at Sea, Claude Larson, waves hello from the aft deck of the Albatross IV as she dons her immersion suit during an abandon ship drill.
Claude Larson waves hello from the aft deck as she dons her immersion suit during an abandon ship drill.

Science and Technology Log 

Although our departure date was delayed by one day due to some problems with the air conditioning system that cools the staterooms, we are glad that the problem has been resolved and we are underway on Tuesday, July 24. We left from the dock at approximately 9:00 AM under partially cloudy skies and with a light breeze. Just as I was standing on the hurricane deck enjoying the view of the diminishing landscape, there is an all call onboard and we are asked to muster in our stations for a fire drill.

We gathered all of our emergency gear and met in the wet lab area of the ship. In a few minutes, an abandon ship drill is announced and we head out to our life raft assignments and don our bright red immersion suits.  They are a bit of a task to put on, but provide ample protection should we ever actually abandon ship. They are known as the “Gumby Suits” and I have made that my first image in my log of this cruise.

A few minutes after we put away our emergency gear, the Chief Scientist, Stacy Rowe asks the crew for a test tow to ensure that all of the equipment we will need to survey the scallops is in working order. This is a great opportunity for those of us who are new on board to see how the procedure works. The deck hands skillfully direct the large dredge net over the back of the boat and release a specific length of cable based on depth of the water.  Unfortunately, during the first attempt the net flips and does not collect any specimens.  However, the second tow is more successful and allows us to get a collection of organisms large enough to sample.

Those of us who have never been on a scallop survey before get to work.  While kneeling on mats we sort through the pile for any living organisms.  These are put in blue buckets. The organisms are then sorted by species and we get a hands-on lesson from Larry Brady, our Watch Chief on how to identify certain organisms.  Once all the species are identified and sorted, we weigh them, count them and measure the length of a few using FSCS, the Fisheries Scientific Computer System. The deck, baskets and buckets are cleaned and put back until the next tow. Our next tow is south of Long Island, approximately 87 nautical miles away, so we take the opportunity to enjoy a quick lunch break and some down time until we are on our modified watch schedule from 6 PM to Midnight.

I am looking forward to our first official tow and the treasures we will find there.  Hopefully my body will have made some adjustments to the rocking and rolling of the ship as we steam through the Atlantic.  In the meantime, I will leave you with my question of the day.

Why would scientists who are studying the overall health of an ocean environment collect and study organisms from the bottom of the ocean? 

Susie Hill, July 23, 2007

NOAA Teacher at Sea
Susie Hill
Onboard NOAA Ship Albatross IV
July 23 – August 3, 2007

Mission: Sea Scallop Survey
Geographical Area: North Atlantic Ocean
Date: July 23, 2007

Weather Data from the Bridge 
Air Temperature: 19.4° C
Sea Temperature: 20.9 ° C
Relative Humidity: 83%
Barometric Pressure: 1019.4 millibars
Windspeed: 19.32 knots
Water Depth: 48.5 meters
Conductivity: 045.16 mmhos
Salinity: 33 ppt

Sea Scallop (Placopecten magellanicus)
Sea Scallop (Placopecten magellanicus)

Science and Technology Log 

My NOAA Teacher at Sea Journey begins! We set sail this morning at 9:00 a.m. on the NOAA ALBATROSS IV Ship out of Woods Hole, Massachusetts to assess the scallop populations between Long Island, New York and Georges Bank of the Altantic Ocean. The areas being studied are chosen by the stratified random sampling method that is based on depth and bottom composition. Some other stations are specially selected by the scientists for further studying.  Among the sea, calico, or Icelandic species of scallops, we’ll also be pulling up species of fish and crab that will be studied by other scientists from Woods Hole Oceanographic Institution (WHOI, pronounced as Hooey around here). Stacey Rowe is our Chief Scientist for this trip.

We started off our day with the fire drill where we find our assigned stations and wait for directions by the Ship’s Captain. My station was the wet science lab near the stern (or back) of the ship with the other scientists. Next was the abandon ship drill where we grabbed our “gumby” survival suit and life jacket, and went to our next station which was Life Raft #5. The gumby suit was cool! Sorry, I didn’t get any pictures. Too busy following orders to get in station. Then, we did a “test tow” of the dredge to see if it worked. The dredge is the metal net that the ship uses to scoop up the animals from the sea bottom for sampling. Last, we caught species of flounder (left eye and windowpane), cancer crabs, and sea robins. The area that we dredged is not popular with scallops, so we didn’t pull any up. Our job as volunteers was to sort and weigh the collected species.  I am working the noon-midnight shift, so I’ll be getting ready now to take my place in prepping for our wonderful catch! Wish me luck!

Cool Fact for the Day 

The Virginia fossil is the scallop, Chesapecten jeffersoni.

Mary Ann Penning, July 19, 2007

NOAA Teacher at Sea
Mary Ann Penning
Onboard NOAA Ship Albatross IV
July 9 – 20, 2007

Mission: Sea Scallop Survey
Geographical Area: North Atlantic Ocean
Date: July 19, 2007

Weather Data from the Bridge 
Visibility: 7 nautical miles (nm)
Wind direction: 166 degrees
Wind speed: 7 knots (kts)
Sea wave height: 1 foot
Swell wave height: 2 feet
Seawater temperature: 23.1 degrees C
Sea level pressure: 1010.0 millibars (mb)
Air Temperature: 24.0 degrees C
Cloud cover: partly cloudy; hazy

Science and Technology Log  

This is our last full day on the ALBATROSS IV; it’s hard to believe that we’ve reached this point. We were not far from New York City this afternoon, when we did our final two tows. In our last tow, found among the scallops that we caught, was a ten pound goose fish, the biggest caught on our watch. (I understand that their tails are good to eat.)  Getting our picture taken with the goose fish for the “picture of the day”, signaled the end of the towing operations for this trip. We then took time to clean our areas and equipment.  We did the fantail, while the night shift did the interior wet room and the Chief Scientist’s office. We scrubbed all the baskets and buckets, the measuring equipment and our foul weather gear.  It was time consuming, but with a team approach, it didn’t take long. The Chief Scientist and the skilled fishermen were repairing the netting in the dredge. I would never have guessed the amount of effort it takes to run a scientific survey such as this one, until I participated in one.

The only part of the ship I hadn’t been to was the engine room.  So this afternoon, when life was much slower, I asked if I could see it. It was certainly noisy in the lower bowels of the ship, even with protective “earmuffs.” I learned that the ship took on 10,000 gallons of diesel fuel before we left Woods Hole.  The ship can carry 30,000 gallons total.  There are two big diesel Caterpillar engines that operate the ship.  The ship generates its own electricity, too. Two diesel generators drive the generators that manufacture electricity.  One diesel generator drives the hydraulic pumps for the winch operations. I had been curious about the fresh water on board the ship, when I first learned that the hoses we used to clean our equipment, used sea water.  The ship can carry 22,000 gallons of water. At the end of our two week trip, we had less than half of that left. The engineers said that the ship uses about 1000 gallons a day.  If the ship goes out for three weeks, two desalinators, located below the ship, are used to turn sea water into fresh water.  (They are not used exclusively for providing fresh water because of the slowing down and stopping process involved in towing the dredge.  There is not enough heat from the engine for the system to be the primary source of fresh water.  There are a series of filters that are used in the process.)  Big vessels, it seems, can be self sustaining, floating cities.

Personal Log 

I’m so glad that I had the opportunity to participate in this experience.  Before I could even be considered a candidate for the NOAA Teacher at Sea Program, I had to be cleared medically.  One lieutenant called me with a few questions and he cautioned me by saying, “You know this program is very competitive.  A lot of teachers want to participate.” I replied by saying that you never know until you try.  And try I did! Both in the application process and now while on board the ALBATROSS IV.  We actually measured and recorded electronically 53,077 scallops from the 210 various stations in the Mid-Atlantic that we surveyed. Expanding those numbers mathematically, the projected amount of scallops caught for these areas is – drumroll, please – 148,063 scallops.  From my perspective, these amounts are astounding, just astounding!  What more can I say.  When these statistics are analyzed, the actual number of scallops in the resource will be determined.  Then openings and closings of various scallop fishing areas will be decided; it is a complex process.

It was the people, ultimately, who helped make the trip enjoyable.  I enjoyed talking to the young NOAA officers about the NOAA Corps and their program at the US Merchant Marine Academy at Kings Point, Long Island. Many of them have science backgrounds – meteorology, ecology, oceanography, and geography.  One is going on to NOAA flight school soon. He might be responsible for monitoring whale migration for ships one day.  Their commanding officer, Kurt Zegowitz, a very kind, patient, and personable man, welcomed me aboard and offered his help.  His patience was certainly appreciated because he was instrumental in helping me get my logs published.

The other NOAA paid staff, with their varied interest and background in science, were wonderful to me.  Jonathon, Laura, and Heath, responsible for the day watch, were very patient and helped me identify the various fish so that I could help sort and weigh them.  When one fish couldn’t be identified immediately, Laura looked at the gills to help her make the decision.  Identification guides were available to help determine the identity of any specimens of which they were unsure.  It was fun to hear their stories of the numerous and varied NOAA survey trips with which they’ve been involved.  Dvora Hart and Victor Nordahl, whom I’ve mentioned throughout my logs, were dynamite individuals.

From the support staff – the computer techs, the cooks, the engineers, and the skilled fishermen – I heard interesting stories.  Many of them have worked, fished, and sailed all over the world. Their team approach and camaraderie was evident and neat to see.

On board with us, too, have been five awesome college volunteers who are interested in science careers. There were three women and two men from various universities in the Northeast. One young woman was from the Coast Guard Academy; she’ll be a senior next year. She’s coming back for the second leg of the trip when the vessel and scallop survey head north to Georges Bank. Another young woman, working on her Master’s Degree, has a dual major in Marine Biology and Marine Policy.  They were impressive, young and energetic; it felt good to be able to keep up with them.

Tomorrow morning at 7:00 AM our young officers will back the ship into the dock at Woods Hole after our whirlwind 1,554.3 nautical miles’ adventure into sampling sea scallops. The survey will continue for two more legs; each two week trips.  Their fish and terrain will be somewhat different, but the scallops the same.  I’m anxious to read the logs of the Teachers at Sea participating in those portions of the trip.  Because of this trip, I have greater respect for the scientific community and survey work such as this and for fishermen who make scallop fishing their life work.  Thanks to the NOAA Teacher at Sea program I have had a wonderful opportunity to participate in an amazing, once in a lifetime, learning adventure.