Physeter macrocephalus (Sperm whale)

Displaying 1 - 4 of 4

The impact of predation by marine mammals on Patagonian toothfish longline fisheries

Study Type: 

Field study in the wild

Location: 

South Georgia

Target catch: 

Patagonian toothfish

Effect on bycatch species: 

Sperm whales interacted with longlines 25% of the time; orcas interacted only 5% of the time could remove half of the catch; fur seal interactions have declined since 2009

Effect on target catch: 

Catch rates were lower when marine mammals were present

Article: 

The impact of predation by marine mammals on Patagonian toothfish longline fisheries

Bycatch species: 

Fishing Gear: 

Field Study

Study Type: 

Field study in the wild

Location: 

Crozet Islands

Target catch: 

Patagonian toothfish

Effect on bycatch species: 

Less time for interaction with longlines

Effect on target catch: 

Less depredation

Article: 

Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands exclusive economic zone: an assessment of depredation levels and insights on possible mitigation strategies

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 733

Study Type: 

Field study in the wild

Location: 

Falklands

Target catch: 

Patagonian toothfish

Effect on bycatch species: 

No bycatch and appeared to reduce depredation

Effect on target catch: 

Catch was reduced

Article: 

Experimental fishing with an "umbrella-and-stones" system to reduce interactions of sperm whales (Physeter macrocephalus) and seabirds with bottom-set longlines for Patagonian toothfish (Dissostichus eleginoides) in the Southwest Atlantic

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Field Study 730

Study Type: 

Field study in the wild

Location: 

Chilean Patagonia

Target catch: 

Patagonian toothfish

Effect on bycatch species: 

Significantly reduced depredation and interactions with longlines

Effect on target catch: 

CPUE was higher

Article: 

Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery

Bycatch species: 

Reduction technique: 

Fishing Gear: