Small Cetaceans (maximum length < 7.5 meters)

Acoustic methods of reducing or eliminating marine mammal-fishery interactions: do they work?

Study Type: 

summary

Target catch: 

N/A

Effect on bycatch species: 

Net alarms do not appear ver effective in reducing small cetacean entanglements in gillnets

Effect on target catch: 

N/A

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Acoustic investigation of bycatch mitigation pingers

Study Type: 

wild

Location: 

Queensland, Australia

Target catch: 

Shark

Effect on bycatch species: 

The current net/pinger configuration is adequate for humpback whales, dugongs and dolphins swimming at normal travelling speeds. The current pinger spacing is insufficient for dolphins swimming straight at the net at high speeds.

Effect on target catch: 

N/A

Article: 

Bycatch species: 

Reduction technique: 

Fishing Gear: 

Cetaceans and tuna purse seine fisheries in the Atlantic and Indian Oceans: interactions but few mortalitites

Study Type: 

summary

Location: 

Atlantic and Indian Oceans

Target catch: 

N/A

Effect on bycatch species: 

n/a

Effect on target catch: 

N/A

Article: 

Fishing Gear: 

Bycatch species: 

Long-term trends in cetacean incidents in New South Wales, Australia

Study Type: 

summary

Location: 

New South Wales, Australia

Target catch: 

n/a

Effect on bycatch species: 

n/a

Effect on target catch: 

n/a

Article: 

Bycatch species: 

Cetacean-fishery interactions in Galicia (NW Spain): results and management implications of a face-to-face interview survey of local fishers

Study Type: 

wild

Location: 

Galicia Spain

Target catch: 

Various

Effect on bycatch species: 

Substantial economic loss can occur from interactions between bottlenose dolphins and gillnets. Cetacean bycatch mortality highest for set gillnets.

Article: 

Bycatch species: 

Fishing Gear: 

Quantification of interactions between the Portuguese sardine purse-seine fishery and cetaceans

Study Type: 

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: 

Bycatch species: 

Fishing Gear: 

Interaction between bottlenose dolphin (Tursiops truncatus) and trammel nets in the Archipelago de La Maddalena, Italy

Study Type: 

wild

Location: 

Italy

Target catch: 

Bony fish

Effect on bycatch species: 

None reported

Effect on target catch: 

Catch composition was different when dolphins attacked the net. Decrease in cuttlefish and red mullet and an increase in scorpionfish

Article: 

Fishing Gear: 

Bycatch species: 

Effects of bycatch on the population viability of the narrow-ridged finless porpoises in Ariake Sound and Tachibana Bay, Japan

Study Type: 

lab

Location: 

Ariake Sound and Tachibana Bay

Target catch: 

Effect on bycatch species: 

Bycatch mortality will lead to at least a 29.6-86.3% decrease in the population size over three generations

Effect on target catch: 

Article: 

Bycatch species: 

Effects of pingers on the behavior of bottlenose dolphins

Study Type: 

wild

Location: 

Shannon Estuary, ireland

Target catch: 

Effect on bycatch species: 

Change in vocalisation rate in static trials when continuous pingers were active

Effect on target catch: 

Article: 

Reduction technique: 

Bycatch species: 

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