Tag: noaa ship albatross IV

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Mary Ann Penning, July 17, 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 17, 2007

Weather Data from the Bridge 
Visibility: 4 nautical miles (nm)
Wind direction: 278 degrees
Wind speed: 6 knots (kts)
Sea wave height: 1 foot
Swell wave height: 3 feet
Seawater temperature: 25.2 degrees C
Sea level pressure: 1017.1 millibars (mb)
Air Temperature: 24.9 degrees C
Cloud cover: hazy

Dvora Hart is counting astropectin, a type of sea star (also called starfish), for sampling.
Dvora Hart is counting astropectin, a type of sea star (also called starfish), for sampling.

Science and Technology Log 

For a person who has rarely eaten scallops, I’m really getting an up close and personal look into the lives of these mollusks.  Dr. Deborah, aka Dvora, Hart is our resident scallops’ expert traveling and working on this trip. She has studied scallops for eight years and travels internationally speaking on behalf of scallops everywhere. She is an intermediary between the science side of scallops and with the fishermen and the fishing industry. While incorporating her mathematics background, she works closely with our Chief Scientist Victor Nordahl developing these surveys. Talking with her over the course of the trip and just listening to her wealth of knowledge have taught me a lot about scallops in such a short time.  She is passionate about scallops and knowledgeable about other organisms that we saw on the trip. In a nutshell or should I say “in a scallop shell”, I’ll share what I’ve learned about scallops in just a little less than two weeks.

Scallops have been around for millions of years.  Five to ten million years ago, in the Chesapeake Bay area, there used to be a shallow sea.  Much later, scallop fossils, found by Indians living in this area, were used for bowls.  In fact Virginia’s state fossil is a scallop measuring up to 200 mm, named Chesapecten jeffersonius, obviously named after Thomas Jefferson.  I didn’t even know there were state fossils!

These sea stars, also known as starfish, are classified as Astropecten americanus.
These sea stars, also known as starfish, are classified as Astropecten americanus.

Sea scallops like living in about 40 – 80 meters of water in the Mid-Atlantic. It is neither too warm in the summer nor too cold in the winter at these ocean depths for them to develop. In deeper water, one of their nemesis, Astropecten americanus, a type of starfish, will eat the baby scallops whole. (There are over 100 different species of Astropecten around the world.) Scallops swim, eat phytoplankton, and spawn when their food source is higher in the spring and fall.  They can range in size from a few centimeters to 15 centimeters from their hinge to their tip. The family of scallops includes our Atlantic Sea Scallops, (called Giant Scallops in Canada), Bay Scallops, and Calico Scallops.

In the US, the scallop industry wholesale at the dock brings in about $400 million dollars, while the retail value is worth about $800 million.  All fisheries in the northeast bring in about 1.2 billion dollars and scallops and lobsters are responsible for about one third each, while all other fish comprise the other third.  Full time scalloping permits can range in the three to four million dollar range; one can somewhat understand why these permits would be highly desirable. There are a limited number available.

In 1998, only 12 million pounds of sea scallops were caught in the U.S.  Since 2002, they have been bringing in over 50 million pounds each year.  Why the change?  Part of it is skill, part of it is good luck, but the main reason is that areas were closed for three years to allow the baby scallops to grow to bigger sizes.  In some of our surveyed areas that have been open to harvesting scallops, we have seen fewer and smaller scallops.  In Elephant Trunk, which just opened for scallop fishing in March, we have generally seen more scallops which are bigger. Data collected over time by surveys such as this one have supported the closings and reopening of areas.

This sea scallop survey is collecting data about sea scallops and other species to manage the sea scallop fishery properly in the southern part of the range of sea scallops. Our trip has spanned from New Jersey to the tip of North Carolina and back again. We have targeted underwater areas such as Hudson Canyon, Elephant Trunk, and a station on the edge of Norfolk Canyon to name just a few.  The NOAA National Marine Fisheries Service manages the area from 3 miles to 200 miles across the continental shelf.  The waters from shore to three miles out are managed by the various states and operate under different rules. The restrictions for scallop fishing are managed by a fishery management board comprised of 19 representatives from various states.

Scallop boats are allowed to retrieve about one fourth of the total scallops a year.  If they catch more than that, they fish out too many of the big ones in an area. If they catch too few a year, more will die from natural causes.  It takes about four years to deplete an area of scallops. (The four inch rings in their dredges allow smaller scallops to escape.)

My interview with Dvora has spanned the entire cruise.  As we have asked questions, whether kneeling in the pile on the fantail or in the workrooms or at the dinner table, she has been generous with her information and we have become more aware and knowledgeable about scallops and their economic impact on the US.

Scientists in front of the NOAA map showing the location of the scallop sampling stations.
Scientists in front of the NOAA map showing the location of the scallop sampling stations.

Personal Log 

Thinking back over the trip, there have been some exciting highlights.  Three that come to mind are the following.  I finally went up to the bridge, about 1:00 AM one morning to see how the operations are run at night. I had been up there during the day and so I was familiar with the equipment during the daylight.  I walked into a quiet, dark room with only red lights showing. (I understand they don’t destroy your night vision.)  The side doors were open and a cool breeze was coming in.  It was hazy outside; I thought I couldn’t see any stars, something I had hoped to see.  The officer in charge said to look straight up and there were definitely some stars to see.  He helped me find the big dipper through the haze.  After craning my neck for awhile, I stepped to the starboard side and I found Cassiopeia, like a big, wide “W” in the sky.  He brought out a star chart to help me identify the constellations. Even though I was tired, it was definitely worth staying up a little later than usual.

Another job I learned how to do was check the inclinometer when the dredge came up on deck. (I had to wear a hard hat for safety.) It is a device which checks the dredge’s towing efficiency. A hand held wand type device transfers information from the inclinometer, which is stored in a protective steel tube at the top of the dredge.  Once back in the workroom, I would download the information onto a computer and print out a copy in graph form.  We could see from the graph if the dredge flipped when it went into the water. If it did, then we would have to turn around and retow.  This happened only twice that I am aware of during the entire trip.  The Chief Scientist ultimately analyzes all the data.

And I learned how to shuck a scallop! We could shuck scallops for the galley in our down time if the scallops came from an open area.  I’ve had them smoked, baked, sautéed, and even raw, marinated in special sauces.  Not that I’m a connoisseur now, but I’ve certainly learned to enjoy them.

Questions of the Day 

Estimate how many miles we will have traveled on our entire trip.  Remember we have zigzagged on our course from Woods Hole to the southern end of Virginia and back.  We left Woods Hole on the afternoon of July10th and we will be returning at 7:00 AM on Friday, July 20th.

How many gallons of diesel fuel does the ship hold? The ALBATROSS IV is a 187 foot long vessel with a breadth of 33 feet, and a draft of 17 feet 3 inches.  (It displaces 1115 tons of water.)

How does the ship get fresh water?

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Mary Ann Penning, July 15, 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 15, 2007

Weather Data from the Bridge 
Visibility: 4 nautical miles(nm)
Wind direction: 196 degrees
Wind speed: 59 knots (kts)
Sea wave height: 2 feet
Swell wave height: not available
Seawater temperature: 24.3 degrees C
Sea level pressure: 1013.2 millibars (mb)
Air Temperature: 25.1 degrees C
Cloud cover: partly cloudy, hazy

Penning at the Limnoterra Boards (measuring boards) measuring the length of a goose fish caught along with the scallops in the dredge.
Penning at the Limnoterra Boards (measuring boards) measuring the length of a goose fish caught along with the scallops in the dredge.

Science and Technology Log 

We have traveled along the continental shelf of the eastern seaboard since we set sail from Woods Hole almost a week ago. The route of the ship zigzags from one location to another, visiting previously selected underwater stations, where scallop and fish specimens are collected. Some areas are in shallower water than others and some have been closed to commercial fishermen, while others have just recently opened.  NOAA maps showing these locations are posted in our workroom outside the fantail (rear deck of the ship where we work) along with charts showing the distance between the tows.  The NOAA officer on the bridge works in tandem with the three skilled fishermen who control the dredge equipment – the gantry and the winch.  We wait for 15 minutes while the dredge is towed over an area approximately 4500 square meters.  The ALBATROSS IV is working nonstop. The teamwork is incredible!

Before the sorting begins, the pile dumped from the dredge is photographed with location information.
Before the sorting begins, the pile dumped from the dredge is photographed with location information.

When the dredge is opened on deck, it is amazing what we find.  Usually eight of us, on hands and knees, sort a pile that can be about eight by six feet wide and about one to two feet high. It’s like playing in a sand pile looking for hidden treasure.  Sometimes the pile is somewhat dry and packed with sand and rusty red sand dollars that camouflage the scallops. Sometimes the catch seems to be wet and slimy and filled with nothing but astropectin, the starfish that gobble the baby scallops whole.  As a result there are very few adult scallops in that area. At one station it was projected that there were about 30,000 astropecten. That would be about five per square meter.  And if we took into account the ones that we missed, there could be approximately ten per square meter.  When we first entered an area named Elephant Trunk, recently opened in March, the pile dumped from the dredge seemed nothing but scallops.  The catch was very clean and we just shoveled them into baskets.  At another station we measured 792 scallops.  Expanding on the sampling size with a special formula, it was determined that there were 7,920 scallops at this location.  Imagine the economic value of this one station alone.

Mixed in with the haul can be a variety of other organisms such as crabs, starfish, little skates, goose fish with their big mouth and ugly teeth, various sizes of four spotted flounder, and sea mice with their spiny edges. Usually we find a variety of hakes: red, spotted or silver, (commercially known as whiting). These fish seem to “hang around” scallops. We collect and count the fish and crabs, too, at some points.  At one such “crab station” I counted 146 crabs.  I’m getting a “hands on” course in fish and scallops.

After sorting scallops into round, laundry type plastic baskets and fish into separate buckets, the residue is shoveled into baskets and accounted for too.  Using various sampling techniques, it is determined how many scallops or baskets of scallops will be weighed and measured on three sophisticated, computerized measuring devices.  But still everything has to be done by hand. Age and growth samples on five scallops are taken at various sites which are packaged and taken back to the lab to be evaluated.  At one site we analyzed 60 scallops for age and growth. The rings on scallops are analogous to tree rings. After cleaning our equipment with hoses spraying sea water, we’re ready for the next station. All these techniques are employed about once an hour around the clock for an expected total of 200 stations. That’s a lot of scientific data for someone to analyze.

Personal Log 

Where can someone spend their “down time” on a cruise like this?  While waiting for the catch to come in, most of us like to sit around the Chief Scientist’s office or the similar space across the hall.  It’s close to the fantail where we do most of our work.  I like to read if I only have a few minutes.  I finished Harry Potter and the Sorcerer’s Stone this way. I brought a laptop computer with me and I finally realized I could work on my logs from there.  A lounge upstairs, where you can watch satellite TV or movies, provides ample entertainment.  In that same area is the computer room where we can e-mail from the ship, however no internet is available.  Occasionally, I like to go to the galley for a snack which, fortunately or unfortunately, is right down the hallway from our workspace.  Fresh fruit is available, along with cereal and popsicles or ice cream.  There may be leftover dessert from dinner, too.  Our rooms are downstairs one level, but as a courtesy to those sleeping from the opposite watch, we don’t enter our rooms then.  Sometimes I like to go out and just look at the water. There was a sliver of a moon last night with the planet Venus peering over it.  That was an awesome sight!

Questions of the Day 

How big can scallops grow? What is their habitat like?  Why is this data on scallops collected?  Who or what benefits from this labor intensive work?  Join me in my next log as I discuss these important mollusks with Dr. Dvora Hart, a scallops’ expert, participating in our scientific survey.

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Mary Ann Penning, July 14, 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 14, 2007

An example of a “Gumby” suit.
An example of a “Gumby” suit.

Weather Data from the Bridge 
Visibility: 10 nautical miles (nm)
Wind direction: 006 degrees
Wind speed: 16 knots (kts)
Sea wave height: 2-3 feet
Swell wave height: 4 feet
Seawater temperature: 22.8 degrees C
Sea level pressure: 1010.9 millibars (mb)
Air Temperature: 22.3 degrees C
Cloud cover: cloudy

Science and Technology Log 

Our ship has been rocking and rolling – literally and figuratively.  I think I have my sea legs now, for the most part, but I still sometimes take a zig-zag route over the deck getting from one point to another.  The weather has been varied. There have been some cloudy days where the fog can creep in unexpectedly. The sunny days are great, but that promotes very sweaty working conditions. I’ve seen two beautiful sunsets; I want to get in at least one sunrise before I leave the ship. As I begin to write this, our room is rolling gently from one side to another. Is this how a baby might feel rocked in their cradle? 

NOAA Teacher at Sea, Mary Ann Penning, measures a fish.
NOAA Teacher at Sea, Mary Ann Penning, measures a fish.

After we left the dock Tuesday afternoon, the staff gradually got us into the routine of shipboard life.  We had a disaster drill and tried on the famous, heavy foam – like, bright orange survival suits. They come rolled up in their own little sleeping bag.  Remember Gumby?  Think of him and imagine all of us on deck getting ready to go trick or treating on Halloween!

Not far from Martha’s Vineyard, we did two trial dredge deployments.  The Chief Scientist tested the equipment and the exercise gave the volunteer scientists a chance to run through the exercises of sorting, weighing, and measuring the catch.  We donned our foul weather gear – boots and slickers.  We did a modified twelve hour work schedule that evening. While the night shift tried to sleep, we went on duty from 6:00 to midnight.  Since there was really nothing to do, it was fun watching a movie in the lounge, but I found it hard to stay awake. I was glad to crawl into my bottom bunk and finally drift off to sleep.

Crew of the ALBATROSS prepare the dredge.
Crew of the ALBATROSS prepare the dredge.

With a twelve hour work schedule, I’ve been trying to get into a routine of work, writing my logs, answering e-mail, doing some light reading and, oh yes, squeezing in time for eating.  I’m still adjusting and find myself tired at various points throughout the day.  I’m finally delving into the Harry Potter series.  I need to keep up with my fifth graders who are enthralled with the books and movies. I brought the first three books with me.  Reading is a good way to spend the 20 minutes we might have between the scallop collecting duties. It just feels good to sit down after the physical labor of collecting specimens from the dredge.

Our dredge, designed by NOAA fisheries staff, drags along the surface layer of the marine habitat for scallops and other benthic organisms.  Benthic means animals that live on the sea floor. The dredge is eight feet wide and about 20 feet long.  It is made of heavy steel and metal rings that are linked together to create the bag behind the dredge frame.  There is an inside liner of netting which allows us to catch the smaller scallops, too.  Our Chief scientist , Victor Nordahl, is responsible for the standardization of the gear.  He describes it like dragging a butterfly net along the bottom of the Atlantic.  This envelope of rings and netting comprise about ten feet of the total length.  (It is similar to what commercial scallop fisherman use except that they can’t use the inside liner.  Their nets are bigger too -two fifteen foot dredges with 4” rings.) The ALBATROSS IV tows the dredge for one nautical mile for 15 minutes while traveling at 3.8 knots.  It takes a heavy duty winch below the decking to recover the dredge back on deck.  A typical dredge haul weighs about 2,000 lbs and the dredge itself weighs 1,500 lbs.  Its catch is what we’re after.

A small fishing ship as seen from the ALBATROSS.
A small fishing ship as seen from the ALBATROSS.

Personal Log 

Our state rooms are small, yet big enough for three people to sleep.  There is a bunk bed and one single bed on the opposite wall. Both are metal and are built into the wall.  One built in desk with six drawers for clothes sits between the beds.  There is one freestanding chair. Underneath the beds are three drawers for extra storage.  Surprisingly we have two closets which are great for storing luggage. There is a small sink with a mirror and medicine cabinet across from the dresser/desk. A bathroom with toilet and shower sits between our room and the room next door.  Two of us are on the day watch and one is on at night.

Questions of the Day 

Can you estimate how many square meters we cover during that time? Can you guess the number of scallops we catch in one haul, depending on the station?  Or the astropecten, a type of starfish that love to feast on baby scallops? Over the course of one day, after visiting about fourteen different stations during each shift, while using various sampling techniques, the answers are astounding. Look for these amazing statistics in my next log. 

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Mary Ann Penning, July 9, 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 9, 2007

NOAA Teacher at Sea, Mary Ann Penning, prepares to set sail aboard NOAA Ship ALBATROSS IV out of Woods Hole, MA.
NOAA TAS, Mary Ann Penning, prepares to set sail aboard NOAA Ship ALBATROSS IV out of Woods Hole, MA.

I am Mary Ann Penning, a fifth grade teacher at Randolph Elementary School in Arlington, VA.  I am sailing aboard the NOAA (National Oceanic Atmospheric Administration) Fisheries Research Vessel ALBATROSS IV with NOAA’s Teacher at Sea program.  I will be part of the crew of scientists collecting sea scallop data on the first leg of this three leg expedition. The mission of the entire cruise is to collect information about sea scallops and other species to help manage the sea scallop fishery properly. Our trip spans twelve days from July 9-July 20 and will cover the southern range of the sea scallop habitat on the continental shelf from New Jersey to the tip of North Carolina. I have been excited for several months waiting for this trip to begin.

It’s the evening of July 9th, sailing day, and we’re still in port in Woods Hole. There have been several unavoidable mechanical issues in today’s plans and, hopefully, tomorrow morning at 8:00 we’ll be leaving the harbor. It seems that many people have been working hard behind the scenes to make our delayed departure a reality. The volunteers are anxious to put the sea scallop survey into production.  Most people on the ship seem to be patient, though, and the unexpected is taken in stride. Those living within a reasonable driving distance have gone home and will return early tomorrow morning.

I had stayed on the ship last night, when I first arrived.  There were just a few people on board and it was pretty quiet, except for the normal ship noises.  But this morning was a different scene. There was crew rushing back and forth through the narrow hallways all morning. College volunteers with an interest in science and other crew members were arriving from various parts of the US.  Meetings and orientations were held to acquaint the newcomers with various aspects of the cruise and its sea scallop mission under the guidance of chief scientist Victor Nordahl and Operations Research Analyst Deborah Hart. Foul weather gear was gathered and rules and regulations were dispensed with a smattering of good humor thrown in.  After my first day of meals, I can tell that I am going to have to watch my calorie intake; the brownies will have to suffice for two meals – they’re too big for just one! What a whirlwind of activity.  Nice people all around.

I’ll update my log as soon as I can. I learned today that I’m on the day shift from noon until midnight.  It will be interesting to see how all of this plays out, once we’re underway.

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Karen Meyers & Alexa Carey, August 30, 2006

NOAA Teacher at Sea
Karen Meyers & Alexa Carey
Onboard NOAA Ship Albatross IV
August 15 – September 1, 2006

Mission: Ecosystem Monitoring
Geographical Area: Northeast U.S.
Date: August 30, 2006

Weather Data from Bridge 
Visibility: 10-12 nautical mile
Wind direction: 3.7 o
Wind speed:  8.5 kts
Sea wave height: 1’
Swell wave height: 2-3’
Seawater temperature: 18.8 C
Sea Level Pressure: 1014.2 mb
Cloud cover: 7/8

Science and Technology Log 

There was a spectacular sunrise this morning and then, during our next-to-last station Steve pointed out a sun dog in the sky above us. We’ve got one more station left to do – in Cape Cod Bay and then we’ll sail through the Cape Cod Canal and back to port at Woods Hole, about a day and a half early.  We will have completed 138 stations in total.  It will all turn into a set of numbers put out on the Web, at some point, and, when I see them, I’ll now know what went into producing them.

Tamara Browning, a teacher from Tenafly Middle School, Tenafly, NJ, and Karen Meyers deploy a drift buoy in the Gulf of Maine.
Tamara Browning, a teacher from Tenafly Middle School, Tenafly, NJ, and Karen Meyers deploy a drift buoy in the Gulf of Maine.

Personal Log – Karen Meyers 

The photo contest entries are up.  The “kids” watch came up with several entries and some of them are pretty cute.  I especially like the one of me, with a shrimp on my shoulder, on the cover of Time magazine, labeled “Teacher of the Year” and the caption “Teacher discovers the oceans are teeming with life.”  I still think we’ve got a good shot at winning. Voting opens at 1100 and closes at 1600.  The suspense is killing me!  It’s been a wonderful trip and there’s a lot about this life that I’ll miss including the constant and ever-changing beauty of the sea; the clean, fresh air; the spectacular sunrises; the 3 meals a day cooked for me; but, most of all, the camaraderie with an interesting and fun-loving group of people.

Personal Log – Alexa Carey 

All the photos are up and the competition is over with.  It’s great what the other group has come up with.  There’s a picture of Tamara and Karen peaking over the bongo nets, Don getting eaten up by the grab and Jerry “pickled” inside of a sample jar.  So far, we have no idea who’s going to win. I love our picture of Tony as a fairy.  As soon as you know Tony, though, that makes the picture all the more entertaining.

We’re almost off the boat.  I’m going to miss the crew terribly, especially Tony, Mike, Steve, Tim, Lino and Orlando.  Okay, I admit it…I’ll miss every single person A LOT!  =) I’ll miss talking with Kurt (XO/CO) and the rest of the officers, Tracy and Alicea.  It’s terrible that I miss these people already…especially because I haven’t left yet.

As soon as we get into port, many of the crew will head off to their homes.  It’s difficult on them because they are away from land for such a long period of time.  Respect is definitely deserved for these men and women who dedicate such a large part of their lives to helping forward knowledge of the oceans and its inhabitants.  I promised Orlando a picture of the Ling Cod I caught (my first fish ever) the week before I came out.  Although there is quite a bit of distance between all of us, I’ll give it my all to keep in touch with everyone when I get home.