Document Detail


Resilience of inshore, juvenile snapper Pagrus auratus to angling and release.
MedLine Citation:
PMID:  22380558     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study assessed the mortality of 157 snapper Pagrus auratus (9-29 cm, total length, L(T) ) after being conventionally angled and then released into cages (along with 48 controls) for 4 days off south-eastern Australia. Fatalities were restricted to 12 angled fish (7·6%) and mostly attributed to the ingestion of hooks and especially their subsequent removal, which caused substantial blood loss and immediate death. Hook ingestion was significantly biased towards smaller fish (<21 cm L(T) ) and attributed to a lower chance of anglers initially detecting these individuals on the line (allowing them to consume more of the baits). While mortalities might be reduced in future via (1) choosing terminal rigs that promote mouth hooking and (2) cutting the line on any-hook ingested fish, the results nevertheless validate releasing unwanted angled inshore juvenile P. auratus as a means for managing their exploitation.
Authors:
M K Broadhurst; P A Butcher; K C Hall; B R Cullis; S P McGrath
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Journal of fish biology     Volume:  80     ISSN:  1095-8649     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0214055     Medline TA:  J Fish Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  638-650     Citation Subset:  -    
Copyright Information:
© 2012 NSW DPT. Journal of Fish Biology © 2012 The Fisheries Society of the British Isles.
Affiliation:
New South Wales Department of Primary Industries, Fisheries Conservation Technology Unit, National Marine Science Centre, P. O. Box 4321, Coffs Harbour, NSW 2450, Australia School of Mathematics and Applied Statistics, Faculty of Informatics, University of Wollongong, Wollongong, NSW 2522, Australia Environmental Informatics: Mathematics Informatics and Statistics, CSIRO Canberra, ACT, Australia National Marine Science Centre, Southern Cross University, P. O. Box 4321, Coffs Harbour, NSW 2450, Australia.
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