Elasmobranchs

Displaying 1 - 10 of 32

Factors affecting elasmobranch escape from turtle excluder devices (TEDs) in a tropical penaeid-trawl fishery.

Study Type: 

Field study in the wild

Location: 

Northern Australia

Target catch: 

Tiger prawn (Penaeus semisulcatus and P. esculentus) and endeavor prawn (Metapenaus endeavouri and M. ensus)

Effect on bycatch species: 

TEDs facilitated the escape of large elasmobranchs, with bar spacing and TED orientation acting as important design factors affecting escape.

Effect on target catch: 

Not tested

Article: 

Factors affecting elasmobranch escape from turtle excluder devices (TEDs) in a tropical penaeid-trawl fishery.

Bycatch species: 

Reduction technique: 

Fishing Gear: 

The effectiveness of a modified turtle excluder device (TED) in reducing the bycatch of elasmobranchs in the Atlantic seabob (Xiphopenaeus kroyeri) industrial trawl fishery of Guyana

Study Type: 

Field study in the wild

Location: 

Guyana

Target catch: 

Seabob shrimp (Xiphopenaeus kroyeri)

Effect on bycatch species: 

40% decline in elasmobranch catch rate; mean size of elasmobranch captured reduced by 6.3%

Effect on target catch: 

Not tested

Article: 

The effectiveness of a modified turtle excluder device (TED) in reducing the bycatch of elasmobranchs in the Atlantic seabob (Xiphopenaeus kroyeri) industrial trawl fishery of Guyana

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Elasmobranch captures in the Fijian pelagic longline fishery

Study Type: 

Field study in the wild

Location: 

Fiji

Target catch: 

Tuna

Effect on bycatch species: 

27 species of elasmobranchs were observed caught. Catch rates were higher on J-shaped compared to circle hooks. Blue sharks and pelagic stingrays were the most common shark/ray.

Effect on target catch: 

N/A

Article: 

Elasmobranch captures in the Fijian pelagic longline fishery

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Elasmobranch bycatch associated with the shrimp trawl fishery off the Pacific coast of Costa Rica, Central America

Study Type: 

Field study in the wild

Location: 

Costa Rica

Target catch: 

Shrimp

Effect on bycatch species: 

Significantly more elasmobranchs caught in water <100 m. Four species made up 66% of the elasmobranch bycatch.

Effect on target catch: 

N/A

Article: 

Elasmobranch bycatch associated with the shrimp trawl fishery off the Pacific coast of Costa Rica, Central America

Bycatch species: 

Fishing Gear: 

A cross-taxa assessment of pelagic longline bycatch mitigation measures: conflicts and mutual benefits to elasmobranchs

Study Type: 

Summary study

Location: 

Target catch: 

N/A

Effect on bycatch species: 

Fish instead of squid increased shark catch and deep hooking.

Effect on target catch: 

N/A

Article: 

A cross-taxa assessment of pelagic longline bycatch mitigation measures: conflicts and mutual benefits to elasmobranchs

Bycatch species: 

Reduction technique: 

Fishing Gear: 

A cross-taxa assessment of pelagic longline bycatch mitigation measures: conflicts and mutual benefits to elasmobranchs

Study Type: 

Summary study

Location: 

Target catch: 

N/A

Effect on bycatch species: 

Circle hooks resulted in higher shark catches but lower haulback mortality and deep hooking.

Effect on target catch: 

N/A

Article: 

A cross-taxa assessment of pelagic longline bycatch mitigation measures: conflicts and mutual benefits to elasmobranchs

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Fishing gear modifications to reduce elasmobranch mortality in pelagic and bottom longline fisheries off Northeast Brazil

Study Type: 

Field study in the wild

Location: 

Brazil

Target catch: 

Tuna (pelagic) sharks (bottom)

Effect on bycatch species: 

Rates of external hooking were significantly higher with circle hooks

Article: 

Fishing gear modifications to reduce elasmobranch mortality in pelagic and bottom longline fisheries off Northeast Brazil

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Pages