Small Cetaceans (maximum length < 7.5 meters)

Dolphin Wall Net (DWN) - an innovative management measure devised by ring seine fishermen of Kerala-India to reducing or eliminating marine mammal-fishery interactions

Study Type: 

wild

Location: 

Kerala, India

Target catch: 

Not identified

Effect on bycatch species: 

Not statistically reported; study only administered a questionnaire that collected information on the structure and design of the Dolphin Wall Net (DWN)

Effect on target catch: 

None reported

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Field Study

Study Type: 

lab

Location: 

Denmark

Target catch: 

n/a

Effect on bycatch species: 

Initial response that diminished with additional trials

Effect on target catch: 

n/a

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Field Study

Study Type: 

lab

Location: 

Neeltje Jans, The Netherlands

Target catch: 

n/a

Effect on bycatch species: 

Increased distance from the alarm source and respiration

Effect on target catch: 

n/a

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Field Study 833

Study Type: 

wild

Location: 

Peru

Target catch: 

Sharks and rays

Effect on bycatch species: 

37% reduction of bycatch

Effect on target catch: 

No effect

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Field Study 806

Study Type: 

wild

Location: 

Queensland, Australia

Target catch: 

None

Effect on bycatch species: 

No significant effect on Australian snubfin and humpback dolphins

Effect on target catch: 

None reported

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Field Study 795

Study Type: 

wild

Location: 

North Sea

Target catch: 

Hake

Effect on bycatch species: 

Pingers spaced at 455 m had 0 bycatch; pingers spaced at 585 m had a bycatch rate of 0.12

Effect on target catch: 

None reported

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