Use of the traditional halibut hook of the Makah Tribe, the čibu⋅d, reduces bycatch in recreational halibut fisheries [PeerJ]

A previous study found that use of the traditional halibut hook (čibu⋅d) of the Makah Tribe in present day recreational Pacific halibut (Hippoglossus stenolepis) fisheries significantly reduced bycatch compared to paired 8/0 circle hooks. The study also found that the čibu⋅d had a significantly reduced catch of halibut, but that the reduction may have been due to manufacturing flaws in the čibu⋅d used in the study. In this two-phased study, we first compared the fishing performance of redesigned čibu⋅d made from four different materials: brass, stainless steel, plastic, and wood. In the second phase, we compared the fishing performance of the brass čibu⋅d with two common recreational fishing set-ups: a single large 16/0 circle hook and paired 8/0 circle hooks. The fishing performance of the redesigned čibu⋅d was not statistically different for čibu⋅d made of brass, stainless steel, or plastic. However, the čibu⋅d made from wood had significantly lower catch of halibut than the other čibu⋅d. We selected the brass čibu⋅d for the second phase of the study for continuity with the previous study of čibu⋅d and found that it had significantly less bycatch and a lower bycatch ratio than both the paired 8/0 and single 16/0 circle hooks. No significant differences were found in catch rates of halibut for paired 8/0 circle hooks, 16/0 circle hook, and the brass čibu⋅d. This study demonstrates that the improved catching performance of čibu⋅d on halibut and reduced bycatch compared to other popular approaches can be achieved by using brass čibu⋅d. Managers of recreational halibut fisheries should consider the use of čibu⋅d in areas where bycatch is a concern.

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Halibut Hooks of the Northwest Coast Museum of Anthropology - Museum of Anthropology

Halibut Hooks of the Northwest Coast

PDF) Indigenous sex-selective salmon harvesting demonstrates pre-contact marine resource management in Burrard Inlet, British Columbia, Canada