Acoustic harassment devices reduce seal interaction in the Baltic salmon-trap, net fishery

Back | New search
 
Citation: Fjällinga, A., Wahlbergb, M. and Westerber, H., 2006. Acoustic harassment devices reduce seal interaction in the Baltic salmon-trap, net fishery. ICES Journal of Marine Science, 63(9), ps 1751-1758.
Publisher address:
Contact information:
Link: http://icesjms.oxfordjournals.org/cgi/content/abstract/63/9/1751
Please notify the bycatchdatabse [at] neaq [dot] org (bycatch.org Administrator) if this link no longer accesses the document.
Summary:

AHDs with a source level of 179 dB re 1 µPa rms at 1 m were deployed during three consecutive fishing seasons. Fish catches in traps with AHDs were significantly higher than in the controls, while catch damage in the traps with AHDs was lower. However, towards the end of the fishing season catch damage increased in traps with AHDs.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
Baltic sea Traps Acoustic harassment devices Pinnipeds Reduced depredation of salmon traps by grey seals (Halichoerus grypus) Salmon Increased target catch and reduced seal damage to the catch In the wild