NOAA Teacher at Sea
Onboard Research Vessel Hugh R. Sharp
May 9 – 20, 2009
Mission: Sea Scallop Survey
Geographical area of cruise: Northwest Atlantic
Date: May 13, 2009
Weather Data from the Bridge
Air Temperature: 12.06 Degrees Celsius
Barometric Pressure: 1026 mb
Science and Technology Log
Sea Scallops’ number one predator is starfish. Starfish are very strong. They pry open the shell and then push their stomach inside and devour it. Starfish are very abundant in the Mid-Atlantic. Many tows yield hundreds of starfish. It would be too time consuming to count every one of them so sub-sampling is done to attain an estimate of starfish. The entire catch is sorted but only a portion of the catch is measured. This is a good method when there are many starfish and little substrate (trash). The substrate is then collected in buckets and volume can be determined. The data is then entered into the FSCS computer system. As I mentioned before FSCS is extremely advanced and is a one-ofa-kind biological data system. Prior to 2001, Fisheries Surveys information was sent to federal prisons to be entered into a computer data base. This took an extremely long time to process. Inmates would get compensated as little as a penny per log sheet. This was dangerous and the data could have been destroyed or lost. Today all data is backed up on a server in three different locations to secure data entries. This long-term study about age and growth of sea scallops helps scientists see a trend in different area’s ecosystems.
I have met some intriguing scientists aboard the Hugh R. Sharp. Shayla Williams is a research chemist for NOAA. She specializes in fatty acid analysis of Fluke. A fatty acid analysis is like a fingerprint of what you eat. By studying fatty acid in certain types of fish she can make generalizations about the health of an area. Shayla has done research on NOAA cruises since 2006. She has sailed on the Hudson Canyon Cruise, the Fall Fish Survey, and the Spring Fish Survey to name a few. It takes a whole crew to run a ship and the Hugh Sharp has a very sharp crew. Wynn Tucker is an Oceanographic Technician aboard the Hugh R. Sharp. She has worked for NOAA, EPA, and the Navy. She loves being out on the open water and I don’t blame her. It is magnificent to look out and be surrounded by blue as far as the eye can see. A.J. Ward is another crewmember aboard the Sharp. He works the inclinometer which lets the scientists know of the dredge is in the right spot on the bottom of the ocean floor.
Today was a great day! It was beautiful weather and I got a chance to talk with some of the crew members on the Sharp. I saw a whole school of dolphins less than three feet from the boat. It was incredible! I ran up to the bridge to get a better look and saw a couple of Finback whales as well. It is extremely hard to get pictures because they surface for a few seconds and then dive back under water. There are many fish in this area known as the Elephant Trunk. I can’t wait for tomorrow! Another exciting day where I have the opportunity to be working with cutting-edge technology and incredible scientists. For now I can’t wait to get some sleep.
Animals Seen Today
Little Skates, Goose Fish, Gulf Stream Flounder, Sand Dollars, Sea Mice, Razor Clams, Surf Clams, Hermit Crabs, Sea Sponge, Red Hake, Monk Fish, Cancer Crabs, Sea Scallops, White Back Dolphins, Finback Whales, and Starfish.