. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. THE BACK mail. "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 publications, write UNC Sea Grant, NCSU. Box 8605, Raleigh, 27695-8605. In November 1983, Coastwatch reported that marine advisory agent Jim Bahen was ex- perimenti
. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. THE BACK mail. "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 publications, write UNC Sea Grant, NCSU. Box 8605, Raleigh, 27695-8605. In November 1983, Coastwatch reported that marine advisory agent Jim Bahen was ex- perimenting with a shrimp trap. Now, after gathering a season's worth of data, the results are not en- couraging, says Bahen. With the help of two graduate stu- dents from the University of North Carolina at Wilmington and the Division of Marine Fisheries, Bahen began testing the devices during the brown shrimp season and completed his experiments during the white shrimp season. Similar to miniature crab pots, the shrimp traps are 16-inch cubes made of fine wire mesh, with two side openings, a central bait well and two passages to the main body of the trap. The researchers wanted to find out if the traps would catch shrimp, where they would be most effective, which bait attracted the most shrimp, and what size wire mesh would allow smaller shrimp and fish to escape. Bahen reports that the quantities of shrimp harvested during the test period did not prove the traps to be economically feasible. Changes in wire mesh size, location and time of sets, and baits made little difference. In one experiment, the researchers placed a trap in a 250-gallon aquarium to test the behavior of the shrimp. They found the shrimp were able to go in and out of the large-mesh traps at will. The 1/2-inch mesh seemed to work best at retaining Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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Keywords: ., bookcentury1900, bookcollectionunclibra, booksubjectoceanography
