Barbara Koch, October 2, 2010

NOAA Teacher at Sea Barbara Koch
NOAA Ship Henry B. Bigelow
September 20-October 5, 2010

Mission: Autumn Bottom Trawl Survey Leg II
Geographical area of cruise: Southern New England
Date: Tuesday, October 2, 2010

Weather Data from the Bridge
Latitude 41.31
Longitude -71.40
Speed 6.50 kts
Course 192.00
Wind Speed 11.29 kts
Wind Dir. 246.00 º
Surf. Water Temp. 18.81 ºC
Surf. Water Sal. 31.87 PSU
Air Temperature 15.90 ºC
Relative Humidity 57.00 %
Barometric Pres. 1014.52 mb
Water Depth 35.81 m
Cruise Start Date 10/2/2010

Stacy Rowe, of the Northeast Fisheries Science Center
Stacy Rowe, of the Northeast Fisheries Science Center

Science and Technology Log

Stacy Rowe, of the Northeast Fisheries Science Center, in Woods Hole, Massachusetts is the Chief Scientist for our cruise. I had a chance to talk with her about her background, experiences, and job while we were waiting to leave port today.

When working onshore, Rowe is responsible for pre-cruise preparations, such as ordering supplies for the trip and coordinating the collection of special samples for in-house and out-of-house scientists. She also works on testing a new version of FSCS (Fisheries Scientific Computer System), which is the system we are using to collect data about the fish populations.

During the cruise, when serving as Chief Scientist, Rowe shoulders a lot of responsibility. She schedules the watch teams, works with both watch teams, and acts as a liaison between the scientists and the ship’s personnel on the bridge (the room from which the boat is commanded). Although the sampling stations are randomly selected via computer before the cruise, Rowe works with the bridge to determine in which order stations will be sampled. On this cruise she has consulted with the bridge often because the weather has impacted our travel so much. Rowe relates that the job of chief scientist is mentally tiring because she is really on call the entire cruise. After the cruise, Rowe works with post-cruise management. She makes sure the samples collected are distributed to the scientists, and she audits data to make sure there were no errors in data collection.

Rowe grew up in Florida and attended the University of Florida where she earned a BS in Natural Resource Conservation with a minor in Wildlife Ecology. During her undergraduate program, she studied sampling, and uses this information extensively in her job now. After she graduated from college, Rowe joined the Peace Corps. She spent over one year working in Congo, Africa on a fresh water project. Then, she spent two years on Palau in Micronesia working in marine resource management. Rowe has been with NOAA for eight years, now. She goes on five to six research cruises a year, which adds up to about sixty days for the entire year. She serves as Chief Scientist on the majority of her cruises, but still enjoys the rare cruise when she works as a scientist processing catches.

Rowe has some advice for young people thinking they might like a career like hers. First, get a degree in any science area. A marine science degree isn’t really necessary. Work experience is the really important key. Second, volunteer as much as you can. Volunteering to work on research cruises not only builds a resume, but it allows students to try it out early on in their school career to see if they like it.

Stacy Rowe has strong interpersonal and organizational skills that are important for her leadership position, and I’ve enjoyed working as a volunteer scientist under her direction.

Personal Log

Newport, Rhode Island is a great place to visit. It was a center for shipbuilding and trade during colonial times, and is the birthplace of the U.S. Navy. Some of the United States’ wealthiest families built summer homes overlooking the bay, and these homes are open for tours today. I spent a nice afternoon on the “Cliff Walk” which is a trail that skirts around the edge of the estates just above the water. I had been there twenty five years ago, so it was fun to revisit the area.

Narragansett Bay
Narragansett Bay.

After two days in port, we are heading back out to sea. It’s a beautiful day. The sun is shining, and the waters are pretty calm. It’s hard to believe that we will be in rough waters once we leave Narragansett Bay. I’m riding up on the weather deck as we leave the bay, and I see many sailboats, two commercial cruise liners, Fort Adams (which has guarded Narragansett Bay since Colonial Times), Clingstone (a famous house built on a rock in the water), and the Newport (Pell) Bridge. I’m definitely putting Newport on my list of places to revisit.

In the Wet Lab

Processing an Atlantic Spicy Dogfish
Processing an Atlantic Spicy Dogfish
Processing an Atlantic Spicy Dogfish
Processing an Atlantic Spicy Dogfish

We have processed Atlantic Spiny Dogfish in the lab this week. This fish isn’t very popular for food in the United States, but it is exported to Europe for “fish and chips.” In 1998, this species was overfished, therefore, there were limits placed on the numbers fisheries could catch. Since that time, catch levels have been rebuilt.

The Atlantic Spiny Dogfish lives a long time: females up to 40 years and males up to 35 years. Females are larger than males and give birth to between two and fifteen live pups. During gestation (18-24 months) the pups have a yellow sack at their necks called a “yolk.” The Spiny Dogfish, processed here by TK, was a female with six pups. You can see the yolk on the two pups in the picture at right.

Barbara Koch, September 28, 2010

NOAA Teacher at Sea Barbara Koch
NOAA Ship Henry B. Bigelow
September 20-October 5, 2010

Mission: Autumn Bottom Trawl Survey Leg II
Geographical area of cruise: Southern New England
Date: Tuesday, September 28, 2010

Me in Front of the Henry Bigelow
Me in Front of the Henry Bigelow

Weather Data from the Bridge
Latitude 41.36
Longitude -70.95
Speed 10.00 kts
Course 72.00
Wind Speed 19.19 kts
Wind Dir. 152.91 º
Surf. Water Temp. 18.06 ºC
Surf. Water Sal. 31.91
PSU Air Temperature 19.80 ºC
Relative Humidity 91.00 %
Barometric Pres. 1012.45 mb
Water Depth 31.48 m
Cruise Start Date: 9/27/2010

Science and Technology Log

I have the privilege of working with the science team on Leg II of the Autumn Bottom Trawl Survey aboard the NOAA Ship Henry B. Bigelow from September 27 – October 7, 2010. We left port on Monday, September 27 and have been conducting the survey in the waters of Southern New England.

Processing Fish
Processing Fish

Fisheries surveys are conducted every spring and autumn in order to determine the numbers, ages, genders and locations of species that are commonly caught by the commercial fishing industry. The surveys are also carried out to monitor changes in the ecosystem and to collect data for other research. The scientists working on this leg of the survey are from Alaska, Korea, and New England. This ship works around the clock, therefore, we are divided into a day watch and a night watch, and we are all under the direction of the Chief Scientist, Stacy Rowe. I’m on the day watch, so my team processes fish from 12:00 noon until 12:00 midnight.

In order to collect a sample of fish, our ship drags a net for twenty minutes in areas that have been randomly selected before the cruise began. After the “tow,” the net is lifted onto the boat, and the fish are put in a large area to await sorting. The fish move down a conveyor belt, and we sort the fish by putting the different types into buckets and baskets. Once, the catch has been sorted, we move the buckets onto a conveyor belt, which moves them to stations for data collection.

Measuring fish
Measuring fish

Two people work at a station. One is a “Cutter” and the other is a “Recorder.” The cutter measures the length and weight of the selected species of fish on a “fishboard.” This data is automatically entered into the computer system. Depending on the species, the cutter might also be required to take an age sample or a stomach sample. Age is determined by collecting scales or an otolith (sometimes called an ear bone), depending on the species. The cutter removes these and the recorder puts them in a bar-coded envelope to send back to the lab for later study. The cutter also removes the stomach, cuts it open, and identifies what the fish has eaten, how much, and how digested it is. All of this information is entered into the computer for later analysis.

The information gathered during this cruise will give NOAA and other organizations valuable information about the health of the fish species and their ecosystem.

Personal Log

I arrived the night before we left port, and I was able to spend the night on the boat. My stateroom sleeps two people in bunk beds, and each person has a locker in which to stow our belongings. The stateroom also has a bathroom with a shower. Right across the hall is the scientist’s lounge. It has two computers, a television, many books, and games. This is where we sometimes spend our time while we are waiting for a tow to come in.

We spent much of the first day waiting to leave port. Once underway, some tests were conducted on the nets, and my Watch Chief showed me pictures of some of the common species we would see, explaining how to identify them. We began processing fish today. The first time the fish came down the conveyor belt, I was nervous that I wouldn’t know what to do with them. It worked out fine because I was at the end of the conveyor belt, so I only had to separate the two smallest fish, Scup and Butterfish, and Loligo Squid. After my first try at processing, I felt much more confident, and I even was able to tell the difference between Summer and Winter Flounders. One faces to the right and the other faces to the left!