Field Study 561



Target catch: 

None reported

Study Type: 

Field study in the wild

Effect on target catch: 

None reported

Effect on bycatch species: 

Pingers significantly reduced echolocation encounter rates by 50-100% at 500m; sighting reduced up to 375m. Porpoise return time was 6 hrs when pingers were silent after being active for 24 hrs 50 min

Bycatch species: 

Fishing Gear: 

Reduction technique: