Towards Acoustic Discrimination of Tuna Species at FADS
| Date Added: | September 14, 2016 |
| Downloaded: | 2092 times |
| Tags: | Bigeye Tuna, Bycatch, Conservation Measures, FADs, Purse Seine, Skipjack, Sticky, Tuna, Yellowfin Tuna |
| Language: | English |
| Report Type: | Final |
Description
ISSF is sponsoring research to develop a methodology to achieve acoustic selectivity of tropical tuna species, exploring the frequency response of tunas with and without swim-bladders. Swim-bladdered and non-swim-bladdered species typically have different contrasting frequency responses. This research could be applied during fishing operations to help distinguish skipjack (non-swim-bladdered fish) from bigeye and yellowfin tunas (swim-bladdered fish) — and avoid catching undesirable tuna species in FAD sets.