Skates/Rays

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A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries

Study Type: 

Field study in the wild

Location: 

Minch and Stanton Banks

Target catch: 

Whitefish

Effect on bycatch species: 

Removing the 'tickler' chain resulted in decreased catches of sharks and skates

Effect on target catch: 

Catch rates for flatfish, haddock and whiting did not differ. Larger anglerfish were caught without the 'tickler' in place

Article: 

A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries

Bycatch species: 

Reduction technique: 

Fishing Gear: 

A comparison of circle hook and J hook performance in a western equatorial Atlantic Ocean pelagic longline fishery

Study Type: 

Field study in the wild

Location: 

Equatorial Atlantic Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Catch rates were lower for leatherback sea turtles and pelagic stingrays but not sailfish when circle hooks were used

Effect on target catch: 

Bigeye tuna had higher catch rates when circle hooks were used

Article: 

A comparison of circle hook and J hook performance in a western equatorial Atlantic Ocean pelagic longline fishery

Bycatch species: 

Reduction technique: 

Fishing Gear: 

A comparison of circle hook and J hook performance in a western equatorial Atlantic Ocean pelagic longline fishery

Study Type: 

Field study in the wild

Location: 

Equatorial Atlantic Ocean

Target catch: 

Tuna

Effect on bycatch species: 

Sailfish, pelagic stingrays, and leatherback sea turtles, had higher catch rates on J-style hooks

Effect on target catch: 

Bigeye and yellowfin tuna had higher survival rates when circle hooks were used

Article: 

A comparison of circle hook and J hook performance in a western equatorial Atlantic Ocean pelagic longline fishery

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field investigation of rare-earth metal as a deterrent to spiny dogfish in the Pacific halibut fishery

Study Type: 

Field study in the wild

Location: 

Alaska

Target catch: 

Pacific halibut

Effect on bycatch species: 

Experimental hooks resulted in greater reduction on catch of longnose skate

Effect on target catch: 

Did not affect catches

Article: 

Field investigation of rare-earth metal as a deterrent to spiny dogfish in the Pacific halibut fishery

Bycatch species: 

Reduction technique: 

Fishing Gear: 

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