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TITLE: Mortality of fish escaping trawl gears / by Petri Suuronen.
AUTHOR: Suuronen, Petri.
SERIES: FAO fisheries technical paper, 0429-9345 ; 478
SERIES: FAO fisheries technical paper ; no. 478.
PUBLISHED: Rome : Food and Agriculture Organization of the United Nations, 2005.
DESCRIPTION: xii, 72 p. : ill. (some col.) ; 30 cm.
NOTES: Selective fishing has a large potential to reduce bycatch and discards, but it can be justified only if significant numbers of escaping fish survive. Many factors affect the survival of fish escaping from fishing gears and few studies have adequately explained the full range of stress, injury and mortality that can occur when fish escape from trawl codends under commercial fishing conditions. There are various options available to improve the survival of escapees. Installing escape panels or other sorting devices at strategic positions in a fishing gear can enhance escape and the survival of juveniles and non-target species. Facilitating the voluntary escape of fish through various constructional and operational solutions would increase the likelihood of their survival. In some cases, use of other fishing methods may be an appropriate approach to reducing unaccounted mortality associated with escape.
NOTES: Also available electronically via World Wide Web in PDF format.
NOTES: Includes bibliographical references (p. 59-70).
NOTES: Introduction -- Major factors causing stress, injury, and mortality of fish escaping from trawl codends -- Major factors causing mortality of trawl-caught and discarded fish -- Mortality associated with fisheries other than trawling -- Methodologies and techniques used in escape survival experiments : general guidelines for field experiments -- Improvement of escape survival by technical and operational means -- Estimating the magnitude of escape mortality and its impact on fisheries management -- Conclusion.
SUBJECT: Fishes--Mortality.
SUBJECT: Fisheries--Gear selectivity.
SUBJECT: Trawls and trawling--Design and construction.
SUBJECT: Trawls and trawling--Bycatches--Prevention.
ADDED ENTRY: Food and Agriculture Organization of the United Nations.

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