The effect of trawling and subsequent handling on the survival rates of the by-catch of prawn trawlers in Moreton Bay, Australia
Wassenberg, T.J.; Hill, B.J. (1989). The effect of trawling and subsequent handling on the survival rates of the by-catch of prawn trawlers in Moreton Bay, Australia. Fish. Res. 7: 99-110
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836; e-ISSN 1872-6763, meer
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| Auteurs | | Top |
- Wassenberg, T.J.
- Hill, B.J.
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| Abstract |
The fate of by-catch discarded by the Moreton Bay prawn trawl fishery was studied between September 1983 and March 1986. The composition and biomass of the by-catch were ascertained and the effect of trawling and handling on its survival was measured. The by-catch was made up of 52% crustaceans, 15% elasmobranchs, 8% bony fish, 18% echinoderms, 3% cephalopods and 4% debris by weight. Trawl hauls lasted about 60 min. and the catch was sorted in about 20 min. About 85% of the Crustacea and about 20% of the bony fish were still alive 8 h after sorting. |
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