Examining the functional role of current area closures used for the conservation of an overexploited and highly mobile fishery species

McAllister, Jaime D., Barnett, Adam, Lyle, Jeremy M. and Semmens, Jayson M. 2015, Examining the functional role of current area closures used for the conservation of an overexploited and highly mobile fishery species, ICES journal of marine science, vol. 72, no. 8, pp. 2234-2244, doi: 10.1093/icesjms/fsv079.

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Title Examining the functional role of current area closures used for the conservation of an overexploited and highly mobile fishery species
Author(s) McAllister, Jaime D.
Barnett, Adam
Lyle, Jeremy M.
Semmens, Jayson M.
Journal name ICES journal of marine science
Volume number 72
Issue number 8
Start page 2234
End page 2244
Total pages 11
Publisher Oxford University Press
Place of publication Oxford, Eng.
Publication date 2015-05-08
ISSN 1054-3139
Keyword(s) Acoustic telemetry
Functional role
Galeorhinus galeus
Nursery area
Science & Technology
Life Sciences & Biomedicine
Physical Sciences
Marine & Freshwater Biology
Summary Protecting essential habitats through the implementation of area closures has been recognized as a useful management tool for rebuilding overfished populations and minimizing habitat degradation. School shark (Galeorhinus galeus) have suffered significant stock declines in Australia; however, recent stock assessments suggest the population may have stabilized and the protection of closed nursery areas has been identified as a key management strategy to rebuilding their numbers. Young-of-The-year (YOY) and juvenile G. galeus were acoustically tagged and monitored to determine ontogenetic differences in residency and seasonal use of an important protected nursery area (Shark Refuge Area or SRA) in southeastern Tasmania. BothYOYand juvenile G. galeus showed a distinct seasonal pattern of occurrence in the SRAwith most departing the area during winter and only a small proportion of YOY (33%) and no juveniles returning the following spring, suggesting areas outside the SRA may also be important during these early life-history stages. While these behaviors confirm SRAs continue to function as essential habitat during G. galeus early life history, evidence of YOY and juveniles emigrating from these areas within their first 1-2 years and the fact that few YOY return suggest that these areas may only afford protection for a more limited amount of time than previously thought. Determining the importance of neighbouring coastal waters and maintaining the use of traditional fisheries management tools are therefore required to ensure effective conservation of G. galeus during early life history.
Language eng
DOI 10.1093/icesjms/fsv079
Field of Research 050202 Conservation and Biodiversity
050205 Environmental Management
070402 Aquatic Ecosystem Studies and Stock Assessment
MD Multidisciplinary
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Oxford Unviersity Press
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081039

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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