Phocoena phocoena (Harbor porpoise)

Displaying 1 - 10 of 32

Study Type: 

Field study in the wild

Location: 

Portugal

Target catch: 

Sardine

Effect on bycatch species: 

Cetaceans were present during 16.9% of fishing events; encirclement led to common dolphin mortalities

Article: 

Study Type: 

Field study in the wild

Location: 

California

Target catch: 

Swordfish and thresher shark

Effect on bycatch species: 

Decreased cetacean bycatch and no habituation. Pinniped bycatch was not significantly different

Effect on target catch: 

n/a

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Study Type: 

Field study in the wild

Location: 

Cornwall

Target catch: 

None reported

Effect on bycatch species: 

There was a significant difference in the number of porpoise clicks between nets with and without pingers, but the extent of displacement could not be determined. No evidence of habituation to the pingers.

Effect on target catch: 

None reported

Article: 

Species: 

Phocoena phocoena

Although it is believed that the harbor porpoise population is not seriously in danger at present, incidental catch of the species in gillnets continues to be the primary threat throughout its range (Hammond et al 2008). Off the eastern coast of the US, an estimated 1200 to 2900 harbor porpoises were killed annually in gillnets between 1990 and 1996 (Waring et al 1998). In the North Sea, Danish annual estimates of bycatch ranged from 2867 to 7566 between 1990 and 2002 (Vinther & Larsen 2002).

Distribution: 

Cold temperate to sub-Arctic coastal waters in the Northern Hemisphere

Population: 

>700,000
Photo: Ari Friedlaender

IUCN Status: 

Least Concern

Type: 

Mammal

Bycatch Threat: 

Gillnets and other entangling nets, weirs

Pages