Premium
Bycatch in a tropical schooling – penaeid fishery and comparisons with a related, specialised trawl regime
Author(s) -
DELL Q.,
BREWER D. T.,
GRIFFITHS S. P.,
HEALES D. S.,
TONKS M. L.
Publication year - 2009
Publication title -
fisheries management and ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 55
eISSN - 1365-2400
pISSN - 0969-997X
DOI - 10.1111/j.1365-2400.2009.00655.x
Subject(s) - bycatch , fishery , prawn , penaeidae , tiger , biology , crustacean , fish <actinopterygii> , decapoda , computer security , computer science
The bycatch in a tropical Australian banana prawn, Penaeus merguiensis (de Man), fishery is described and contrasted with the closely related tiger prawn, Penaeus semisulcatus De Haan and Penaeus esculentus Haswell, fishery. Most of the similarity between banana prawn fishery catches was accounted for by three teleost species constituting 51.4% of the total bycatch weight. The bycatch assemblage structure of this fishery was significantly different ( P < 0.05) from the adjoining tiger prawn fishery. The banana prawn fishery had a higher mean bycatch catch rate from shorter duration trawls, but lower estimated total annual bycatch (1502 t yr −1 ) than the longer duration trawls of the tiger prawn fishery (20 073 t yr −1 ). This study provides new data for quantifying bycatch and improving the accuracy of quantitative risk assessments currently being used to demonstrate sustainability of bycatch populations. The information will be incorporated into collaborative development of a long‐term monitoring programme.