. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. "The Back Page" is an update on Sea Grant activities—on research, marine education and advisory services. It's also a good place to find out about meetings, workshops and new publications. For more information on any of the projects described, contact the Sea Grant offices in Raleigh (919/737-2454). For copies of pub- lications, write UNC Sea Grant, Box 8605, NCSU, Raleigh, 27695-8605. In late March, Sea Grant agent Jim Bahen and Var- namtown netmaker Steve Parrish tested four turtle ex- clu
. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. "The Back Page" is an update on Sea Grant activities—on research, marine education and advisory services. It's also a good place to find out about meetings, workshops and new publications. For more information on any of the projects described, contact the Sea Grant offices in Raleigh (919/737-2454). For copies of pub- lications, write UNC Sea Grant, Box 8605, NCSU, Raleigh, 27695-8605. In late March, Sea Grant agent Jim Bahen and Var- namtown netmaker Steve Parrish tested four turtle ex- cluder device designs at the Navy's David Taylor Research Center in Bethesda, Md. The TEDs were tested in the Navy's flume tank, a long trough that circulates water. The Navy uses the tank to test ship hull and submarine designs. Bahen and Parrish were using the tank to see how TEDs worked underwater and to deter- mine how shrimp loss could be minimized. The project was funded by the National Marine Fisheries Service. Parrish had built scaled-down versions of four TEDs: the Georgia Jumper with an accelerator, a modified Matagorda TED, the original Parrish TED and a modified Parrish TED with an accelerator. NMFS had approved the use of the ac- celerators, funnels made of webbing that increase the speed at which shrimp pass through the main body of the net to the tailbag. It was believed that accelerators shot shrimp past the TED opening created to extrude turtles. Many Florida shrimpers had been in- stalling the accelerators in their nets and claimed they reduced the loss. The duo worked with Cliff Goudey, a marine engineering specialist of the Mas- sachusetts Institute of Technology Sea Grant College Program, and a New England netmaker to run the tests and exchange ideas. "We learned a lot," Bahen says. "We learned some techniques for fine-tuning the [excluder] opening and ways to mini- mize ; For bottom-extruding excluders, Bahen and Parrish found
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Keywords: ., bookcentury1900, bookcollectionunclibra, booksubjectoceanography
