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A platform for research: civil engineering, architecture and urbanism
Scallop Dredge Comparison Study
The purpose of this contract was to provide trained scientific data collectors who collected catch information during commercial fishing trips. Since June 2007 under this contract we have sampled sixteen commercial fishing trips that were collecting RSA compensation. The trips compared the turtle excluder dredge designs to the standard New Bedford dredge; both dredge types rigged without turtle chains in areas where turtles were known to be present. These trips entailed 154 days at sea (DAS) and 1675 tow pairs observed for turtles, 841 of which were sampled for catch. During these tows, three turtles were considered takes by the turtle excluder dredge and three turtles were taken by the standard dredge. The hypothesis being tested is that fishing with the Cfarm turtle excluder dredge will result in a lower probability of turtle injuries than fishing with a standard dredge. As of the completion of this contract, insufficient data has been collected to test the hypothesis. More trips are needed to understand the ability of this dredge design on reducing injury and mortality possibly resulting from benthic sea turtle interactions and resulting catch.
Scallop Dredge Comparison Study
The purpose of this contract was to provide trained scientific data collectors who collected catch information during commercial fishing trips. Since June 2007 under this contract we have sampled sixteen commercial fishing trips that were collecting RSA compensation. The trips compared the turtle excluder dredge designs to the standard New Bedford dredge; both dredge types rigged without turtle chains in areas where turtles were known to be present. These trips entailed 154 days at sea (DAS) and 1675 tow pairs observed for turtles, 841 of which were sampled for catch. During these tows, three turtles were considered takes by the turtle excluder dredge and three turtles were taken by the standard dredge. The hypothesis being tested is that fishing with the Cfarm turtle excluder dredge will result in a lower probability of turtle injuries than fishing with a standard dredge. As of the completion of this contract, insufficient data has been collected to test the hypothesis. More trips are needed to understand the ability of this dredge design on reducing injury and mortality possibly resulting from benthic sea turtle interactions and resulting catch.
Scallop Dredge Comparison Study
R. Smolowitz (author) / M. Weeks (author)
2009
16 pages
Report
No indication
English
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