Read our companion “best-practices” technical reports on these topics.
Towards Acoustic Discrimination of Tuna Species at FADS
|Date Added:||September 12, 2016|
|Tags:||Bigeye Tuna, Bycatch, Conservation Measures, FADs, Purse Seine, Skipjack, Sticky, Tuna, Yellowfin Tuna|
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.