Datové sady / Traditional Halibut Hook Trials (Longline Bycatch Reduction Through the Use of Traditional Makah Halibut Hooks (Chiboods))


Traditional Halibut Hook Trials (Longline Bycatch Reduction Through the Use of Traditional Makah Halibut Hooks (Chiboods))

Vydavatel National Oceanic and Atmospheric Administration, Department of Commerce

Datum vydání před téměř 10 roky

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a one-off release of a set of related datasets

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Popis

The Makah Tribe plans to build traditional Makah halibut hooks (cibuds) out of metal to determine if the traditional design is more selective for the size of halibut it catches, and if it reduces the bycatch of other fish species (e.g., rockfish) compared to contemporary fished circle hooks. The first step will be to select the design of the cibud by examining cibuds in the holdings of the Makah Museum. The second step is to construct metal cibuds using either 1/4 inch brass or stainless steel; in total, 170 metal cibuds will be constructed. Then longline snap gear will be designed to mimic the fishing behavior of traditional cibuds. The longline gear will be deployed with alternating snap gear and contemporary circle hooks in the spring of 2013. On each set, all fish on each hook type will be counted, measured, and identified. Statistical analysis will be done to determine if there are differences in the mean number of rockfish caught per set, and to determine if the cibuds have a different size distribution of catch than contemporary circle hooks. Data collected from trials using traditional halibut hooks (chibuds).