Shark catch in pelagic longline fishery: Comparison of circle and tuna hooks

Authors: 

Yokota, K., Kiyota, M., Minami, H.

Year: 

2006

Journal/Publisher Name: 

Fisheries Research

Volume (Issue #): 

81

Page #s: 

337-341

Contact information: 

+81 543 36 6000 yokotaks@affrc.go.jp
Summary: 
The use of circle hooks (4.3 sun and 5.2 sun) instead of standard Japanese tuna hooks (3.8 sun) on pelagic longlines, had little impact on catch rates, mortality or size composition of blue sharks.

Field Studies

Location Fishing Gear Reduction Technique Bycatch Species Effect on Bycatch Species Catch Effect on Target Catch Type Link to edit content
North Pacific, Japan Hooks-and-Lines Circle hooks Sharks Little effect on catch rates, mortality or size composition Swordfish Not reported Field study in the wild