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Home range of an estuarine‐dependent fish species Pomadasys commersonnii in a South African estuary

Identifieur interne : 000950 ( Istex/Corpus ); précédent : 000949; suivant : 000951

Home range of an estuarine‐dependent fish species Pomadasys commersonnii in a South African estuary

Auteurs : A. Childs ; A. J. Booth ; P. D. Cowley ; W. M. Potts ; T. F. N Sje ; E. B. Thorstad ; F. Kland

Source :

RBID : ISTEX:0BC78C6D61477FD30C1F2E419F29A0469249678B

English descriptors

Abstract

Abstract  The home range and area use of spotted grunter, Pomadasys commersonnii (Haemulidae) (Lacepède), were investigated in the Great Fish estuary, South Africa. Forty individuals (263–698 mm TL) were surgically implanted with acoustic‐coded transmitters and manually tracked during two periods in 2003. Tagged fish spent on average 68 and 77% of the time in the estuary and the remaining time at sea during the two periods, respectively. While in the estuary, there was large variation in home range size, home range length and the number of home range areas amongst individuals. Larger fish had larger home ranges and more core areas than smaller fish. The home ranges of 29 individuals (74%) occurred in the lower reaches of the estuary, suggesting that the proclamation of a no‐take zone in this high use area could benefit this over‐exploited estuarine fishery species.

Url:
DOI: 10.1111/j.1365-2400.2008.00636.x

Links to Exploration step

ISTEX:0BC78C6D61477FD30C1F2E419F29A0469249678B

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The home range and area use of spotted grunter,
<i>Pomadasys commersonnii</i>
(Haemulidae) (Lacepède), were investigated in the Great Fish estuary, South Africa. Forty individuals (263–698 mm TL) were surgically implanted with acoustic‐coded transmitters and manually tracked during two periods in 2003. Tagged fish spent on average 68 and 77% of the time in the estuary and the remaining time at sea during the two periods, respectively. While in the estuary, there was large variation in home range size, home range length and the number of home range areas amongst individuals. Larger fish had larger home ranges and more core areas than smaller fish. The home ranges of 29 individuals (74%) occurred in the lower reaches of the estuary, suggesting that the proclamation of a no‐take zone in this high use area could benefit this over‐exploited estuarine fishery species.</p>
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<title>Home range of an estuarine‐dependent fish species Pomadasys commersonnii in a South African estuary</title>
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<titleInfo type="abbreviated" lang="en">
<title>HOME RANGE OF AN ESTUARINE FISHERY SPECIES</title>
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<title>Home range of an estuarine‐dependent fish species Pomadasys commersonnii in a South African estuary</title>
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<name type="personal">
<namePart type="given">A.‐R.</namePart>
<namePart type="family">CHILDS</namePart>
<affiliation>Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa</affiliation>
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<name type="personal">
<namePart type="given">A. J.</namePart>
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<affiliation>South African Institute for Aquatic Biodiversity, Grahamstown, South Africa</affiliation>
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<roleTerm type="text">author</roleTerm>
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<name type="personal">
<namePart type="given">P. D.</namePart>
<namePart type="family">COWLEY</namePart>
<affiliation>Norwegian Institute for Nature Research, Trondheim, Norway</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
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<name type="personal">
<namePart type="given">W. M.</namePart>
<namePart type="family">POTTS</namePart>
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<roleTerm type="text">author</roleTerm>
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<name type="personal">
<namePart type="given">T. F.</namePart>
<namePart type="family">NÆSJE</namePart>
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<namePart type="given">E. B.</namePart>
<namePart type="family">THORSTAD</namePart>
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<dateIssued encoding="w3cdtf">2008-10</dateIssued>
<copyrightDate encoding="w3cdtf">2008</copyrightDate>
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<abstract>Abstract  The home range and area use of spotted grunter, Pomadasys commersonnii (Haemulidae) (Lacepède), were investigated in the Great Fish estuary, South Africa. Forty individuals (263–698 mm TL) were surgically implanted with acoustic‐coded transmitters and manually tracked during two periods in 2003. Tagged fish spent on average 68 and 77% of the time in the estuary and the remaining time at sea during the two periods, respectively. While in the estuary, there was large variation in home range size, home range length and the number of home range areas amongst individuals. Larger fish had larger home ranges and more core areas than smaller fish. The home ranges of 29 individuals (74%) occurred in the lower reaches of the estuary, suggesting that the proclamation of a no‐take zone in this high use area could benefit this over‐exploited estuarine fishery species.</abstract>
<subject lang="en">
<genre>keywords</genre>
<topic>acoustic telemetry</topic>
<topic>estuarine protected areas</topic>
<topic>fisheries management</topic>
<topic>site fidelity</topic>
<topic>spotted grunter</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Fisheries Management and Ecology</title>
</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">0969-997X</identifier>
<identifier type="eISSN">1365-2400</identifier>
<identifier type="DOI">10.1111/(ISSN)1365-2400</identifier>
<identifier type="PublisherID">FME</identifier>
<part>
<date>2008</date>
<detail type="volume">
<caption>vol.</caption>
<number>15</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>5‐6</number>
</detail>
<extent unit="pages">
<start>441</start>
<end>448</end>
<total>8</total>
</extent>
</part>
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<identifier type="DOI">10.1111/j.1365-2400.2008.00636.x</identifier>
<identifier type="ArticleID">FME636</identifier>
<accessCondition type="use and reproduction" contentType="copyright">© 2008 The Authors. Journal compilation © 2008 Blackwell Publishing Ltd.</accessCondition>
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