Use of the traditional halibut hook of the Makah Tribe, the čibu.d, reduces bycatch in recreational halibut fisheries

PeerJ

article

Joseph R. Petersen¹  Jonathan J. Scordino¹  Cole I. Svec¹  Reginald H. Buttram¹  Maria R. Gonzalez¹  Joe Scordino³ 

[1] Makah Fisheries Management;Northwest Indian Fisheries Commission;Scordino Consulting

关键词: Pacific halibut;    Traditional ecological knowledge;    Hippoglossus stenolepis;    Bycatch;    Recreational fisheries;    Fisheries management;    Bycatch reduction;    Makah Tribe;    Traditional halibut hook;    Hook design;   

DOI  :  10.7717/peerj.9288

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

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.

【 授权许可】

CC BY