Residency and Local Connectivity of White Sharks at Liguanea Island: A Second Aggregation Site in South Australia?

Robbins, RL; Enarson, M; Bradford, RW; Robbins, WD; Fox, AG

Residency and Local Connectivity of White Sharks at Liguanea Island: A Second Aggregation Site in South Australia?

Robbins, RL Enarson, M Bradford, RW Robbins, WD

Fox, AG

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Publisher:: Bentham Science Publishers Ltd.
Publication Type:: Journal Article
Citation:: The Open Fish Science Journal, 2015, 8 (1), pp. 23 - 29
Issue Date:: 2015-11-17

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Field	Value	Language
dc.contributor.author	Robbins, RL	en_US
dc.contributor.author	Enarson, M	en_US
dc.contributor.author	Bradford, RW	en_US
dc.contributor.author	Robbins, WD https://orcid.org/0000-0003-1106-1733	en_US
dc.contributor.author	Fox, AG	en_US
dc.date.issued	2015-11-17	en_US
dc.identifier.citation	The Open Fish Science Journal, 2015, 8 (1), pp. 23 - 29	en_US
dc.identifier.issn	1874-401X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126420
dc.description.abstract	<jats:p>White sharks show a high degree of residency to specific aggregation sites, to which they return regularly over multiple years. Australian research has historically focused on single aggregation areas within each of the southern states where white sharks occur, but other key habitats likely exist and if so, will be important to identify to effectively monitor and protect threatened white shark populations. This study is the first to describe Liguanea Island as a second white shark aggregation site within South Australia, with residency periods and return visits recorded by multiple individuals. Eight sharks were detected at both Liguanea Island and the other known aggregation area in the state, the Neptune Islands, demonstrating movement between these locations. Sustained residency periods were recorded at both sites, although high periodic site fidelity was apparent with many individuals showing preference for the location at which they were tagged. Individual differences in site fidelity and residency patterns were found, although two sub-adult individuals were found to follow similar movement patterns. The implications of white shark movements, and the suggested identification of a second aggregation areas in close proximity are discussed.</jats:p>	en_US
dc.language	en	en_US
dc.publisher	Bentham Science Publishers Ltd.	en_US
dc.relation.ispartof	The Open Fish Science Journal	en_US
dc.relation.isbasedon	10.2174/1874401x01508010023	en_US
dc.title	Residency and Local Connectivity of White Sharks at Liguanea Island: A Second Aggregation Site in South Australia?	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	8	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	open_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

White sharks show a high degree of residency to specific aggregation sites, to which they return regularly over multiple years. Australian research has historically focused on single aggregation areas within each of the southern states where white sharks occur, but other key habitats likely exist and if so, will be important to identify to effectively monitor and protect threatened white shark populations. This study is the first to describe Liguanea Island as a second white shark aggregation site within South Australia, with residency periods and return visits recorded by multiple individuals. Eight sharks were detected at both Liguanea Island and the other known aggregation area in the state, the Neptune Islands, demonstrating movement between these locations. Sustained residency periods were recorded at both sites, although high periodic site fidelity was apparent with many individuals showing preference for the location at which they were tagged. Individual differences in site fidelity and residency patterns were found, although two sub-adult individuals were found to follow similar movement patterns. The implications of white shark movements, and the suggested identification of a second aggregation areas in close proximity are discussed.

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http://hdl.handle.net/10453/126420