Stable Carbon Isotope Evidence for Reduced Feeding of Gulf of Mexico Sturgeon during Their Prolonged River Residence Period
Identifieur interne : 000436 ( Istex/Corpus ); précédent : 000435; suivant : 000437Stable Carbon Isotope Evidence for Reduced Feeding of Gulf of Mexico Sturgeon during Their Prolonged River Residence Period
Auteurs : B. Gu ; D. M Schell ; T. Frazer ; M. Hoyer ; F. A ChapmanSource :
- Estuarine, Coastal and Shelf Science [ 0272-7714 ] ; 2001.
English descriptors
Abstract
Stable carbon isotope ratios were used to delineate food sources for Gulf of Mexico sturgeon (Acipenser oxyrinchus de sotoi), an anadromous fish that migrates between Gulf of Mexico and the coastal rivers in south-east U.S.A. The large difference in isotope ratios (∼11‰) between freshwater food sources and fish muscle tissue suggests that the Gulf of Mexico sturgeon do not feed significantly in fresh waters. Isotope ratio data from this study and also from the literature indicate that the growth of Gulf of Mexico sturgeon is almost entirely supported by coastal marine food sources. It is likely that Gulf of Mexico sturgeon use the cool springs that seep into the river as a thermal refuge during their river residence in summer and that thermal barriers may prevent the fish from exploiting the rich food sources available in the warmer portions of the Suwannee River.
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DOI: 10.1006/ecss.2001.0816
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ISTEX:9C1D19F07C51C091B2F4C0C30DE7A91290D35E4CLe document en format XML
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Gu</name><affiliation><mods:affiliation>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Schell, D M" sort="Schell, D M" uniqKey="Schell D" first="D. M" last="Schell">D. M Schell</name><affiliation><mods:affiliation>Water and Environmental Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775-1760, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Frazer, T" sort="Frazer, T" uniqKey="Frazer T" first="T" last="Frazer">T. Frazer</name><affiliation><mods:affiliation>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Hoyer, M" sort="Hoyer, M" uniqKey="Hoyer M" first="M" last="Hoyer">M. 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A Chapman</name><affiliation><mods:affiliation>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Estuarine, Coastal and Shelf Science</title><title level="j" type="abbrev">YECSS</title><idno type="ISSN">0272-7714</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001">2001</date><biblScope unit="volume">53</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="275">275</biblScope><biblScope unit="page" to="280">280</biblScope></imprint><idno type="ISSN">0272-7714</idno></series><idno type="istex">9C1D19F07C51C091B2F4C0C30DE7A91290D35E4C</idno><idno type="DOI">10.1006/ecss.2001.0816</idno><idno type="PII">S0272-7714(01)90816-9</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0272-7714</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Gulf of Mexico sturgeon</term><term>food source</term><term>reduced feeding</term><term>stable isotopes</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Stable carbon isotope ratios were used to delineate food sources for Gulf of Mexico sturgeon (Acipenser oxyrinchus de sotoi), an anadromous fish that migrates between Gulf of Mexico and the coastal rivers in south-east U.S.A. The large difference in isotope ratios (∼11‰) between freshwater food sources and fish muscle tissue suggests that the Gulf of Mexico sturgeon do not feed significantly in fresh waters. Isotope ratio data from this study and also from the literature indicate that the growth of Gulf of Mexico sturgeon is almost entirely supported by coastal marine food sources. It is likely that Gulf of Mexico sturgeon use the cool springs that seep into the river as a thermal refuge during their river residence in summer and that thermal barriers may prevent the fish from exploiting the rich food sources available in the warmer portions of the Suwannee River.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>B Gu</name><affiliations><json:string>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</json:string></affiliations></json:item><json:item><name>D.M Schell</name><affiliations><json:string>Water and Environmental Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775-1760, U.S.A.</json:string></affiliations></json:item><json:item><name>T Frazer</name><affiliations><json:string>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</json:string></affiliations></json:item><json:item><name>M Hoyer</name><affiliations><json:string>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</json:string></affiliations></json:item><json:item><name>F.A Chapman</name><affiliations><json:string>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>food source</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Gulf of Mexico sturgeon</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>reduced feeding</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>stable isotopes</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Stable carbon isotope ratios were used to delineate food sources for Gulf of Mexico sturgeon (Acipenser oxyrinchus de sotoi), an anadromous fish that migrates between Gulf of Mexico and the coastal rivers in south-east U.S.A. 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E-mail:bgu@sfwmd.gov</note><affiliation>Current address: Ecological Technologies Department, South Florida Water Management District, 3301 Gun Club Road, West Palm Beach, FL 33406, U.S.A. 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The large difference in isotope ratios (∼11‰) between freshwater food sources and fish muscle tissue suggests that the Gulf of Mexico sturgeon do not feed significantly in fresh waters. Isotope ratio data from this study and also from the literature indicate that the growth of Gulf of Mexico sturgeon is almost entirely supported by coastal marine food sources. It is likely that Gulf of Mexico sturgeon use the cool springs that seep into the river as a thermal refuge during their river residence in summer and that thermal barriers may prevent the fish from exploiting the rich food sources available in the warmer portions of the Suwannee River.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>food source</term></item><item><term>Gulf of Mexico sturgeon</term></item><item><term>reduced feeding</term></item><item><term>stable isotopes</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2001">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/9C1D19F07C51C091B2F4C0C30DE7A91290D35E4C/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla" xml:lang="en"><item-info><jid>YECSS</jid><aid>90816</aid><ce:pii>S0272-7714(01)90816-9</ce:pii><ce:doi>10.1006/ecss.2001.0816</ce:doi><ce:copyright type="full-transfer" year="2001">Academic Press</ce:copyright></item-info><head><ce:dochead><ce:textfn>Regular Articles</ce:textfn></ce:dochead><ce:title>Stable Carbon Isotope Evidence for Reduced Feeding of Gulf of Mexico Sturgeon during Their Prolonged River Residence Period</ce:title><ce:author-group><ce:author><ce:given-name>B</ce:given-name><ce:surname>Gu</ce:surname><ce:cross-ref refid="A1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="FN1"><ce:sup>f1</ce:sup><ce:footnote id="FN1"><ce:label>f1</ce:label><ce:note-para>Current address: Ecological Technologies Department, South Florida Water Management District, 3301 Gun Club Road, West Palm Beach, FL 33406, U.S.A. E-mail:bgu@sfwmd.gov</ce:note-para></ce:footnote></ce:cross-ref></ce:author><ce:author><ce:given-name>D.M</ce:given-name><ce:surname>Schell</ce:surname><ce:cross-ref refid="A2"><ce:sup>b</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>T</ce:given-name><ce:surname>Frazer</ce:surname><ce:cross-ref refid="A1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>M</ce:given-name><ce:surname>Hoyer</ce:surname><ce:cross-ref refid="A1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>F.A</ce:given-name><ce:surname>Chapman</ce:surname><ce:cross-ref refid="A1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="A1"><ce:label>a</ce:label><ce:textfn>Department of Fisheries and Aquatic Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, U.S.A.</ce:textfn></ce:affiliation><ce:affiliation id="A2"><ce:label>b</ce:label><ce:textfn>Water and Environmental Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775-1760, U.S.A.</ce:textfn></ce:affiliation></ce:author-group><ce:date-received day="22" month="10" year="1999"></ce:date-received><ce:date-accepted day="27" month="3" year="2001"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Stable carbon isotope ratios were used to delineate food sources for Gulf of Mexico sturgeon (<ce:italic>Acipenser oxyrinchus de sotoi</ce:italic>), an anadromous fish that migrates between Gulf of Mexico and the coastal rivers in south-east U.S.A. The large difference in isotope ratios (∼11‰) between freshwater food sources and fish muscle tissue suggests that the Gulf of Mexico sturgeon do not feed significantly in fresh waters. Isotope ratio data from this study and also from the literature indicate that the growth of Gulf of Mexico sturgeon is almost entirely supported by coastal marine food sources. 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The large difference in isotope ratios (∼11‰) between freshwater food sources and fish muscle tissue suggests that the Gulf of Mexico sturgeon do not feed significantly in fresh waters. Isotope ratio data from this study and also from the literature indicate that the growth of Gulf of Mexico sturgeon is almost entirely supported by coastal marine food sources. 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