Trade-offs of the copepod Eurytemora affinis in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary
Identifieur interne : 000E18 ( Istex/Corpus ); précédent : 000E17; suivant : 000E19Trade-offs of the copepod Eurytemora affinis in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary
Auteurs : David Devreker ; Sami Souissi ; Juan Carlos Molinero ; Faustin NkubitoSource :
- Journal of Plankton Research [ 0142-7873 ] ; 2008-12.
Abstract
Zooplankton trade-offs to maximize fitness in highly dynamic environments such as estuaries have long been a question of central importance for understanding the ecology and evolution of estuarine populations. We present here the first comprehensive data set on the population dynamics of the copepod Eurytemmora affinis obtained from 50 h high-frequency sampling in the Seine estuary during spring. Maximum densities of E. affinis were associated with low salinities (0.510) and recorded during the ebb in the bottom layer. Vertical variations in population structure were observed between ebb and flood, as well as the spatial distribution of developmental stages. Nauplii were concentrated in the low salinity zone just above salinity 5, and copepodids and adults distributed more widely relative to salinity than nauplii in bottom waters, whereas the opposite pattern was observed in surface waters. The sex-ratio and the proportion ovigerous females:non-ovigerous females appeared to be related to tidal cycle and depth, with higher relative densities of non-ovigerous females in bottom waters and around low tide. The vertical variations noticed during the tidal cycle suggest a strategy by the species to avoid flushing by surface currents, although it may incur a cost due to the greater presence of predators in bottom waters.
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DOI: 10.1093/plankt/fbn086
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We present here the first comprehensive data set on the population dynamics of the copepod Eurytemmora affinis obtained from 50 h high-frequency sampling in the Seine estuary during spring. Maximum densities of E. affinis were associated with low salinities (0.510) and recorded during the ebb in the bottom layer. Vertical variations in population structure were observed between ebb and flood, as well as the spatial distribution of developmental stages. Nauplii were concentrated in the low salinity zone just above salinity 5, and copepodids and adults distributed more widely relative to salinity than nauplii in bottom waters, whereas the opposite pattern was observed in surface waters. The sex-ratio and the proportion ovigerous females:non-ovigerous females appeared to be related to tidal cycle and depth, with higher relative densities of non-ovigerous females in bottom waters and around low tide. The vertical variations noticed during the tidal cycle suggest a strategy by the species to avoid flushing by surface currents, although it may incur a cost due to the greater presence of predators in bottom waters.</div></front></TEI><istex><corpusName>oup</corpusName><author><json:item><name>David Devreker</name><affiliations><json:string>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</json:string><json:string>Laboratoire d'Ecotoxicologie, Milieux Aquatique (LEMA), Facult des Sciences et Techniques, Universit du Havre, 76058, Le Havre Cedex BP 540, France</json:string><json:string>E-mail: david_devreker@yahoo.fr</json:string></affiliations></json:item><json:item><name>Sami Souissi</name><affiliations><json:string>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</json:string></affiliations></json:item><json:item><name>Juan Carlos Molinero</name><affiliations><json:string>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</json:string><json:string>Leibniz-Institut fr Meereswissenschaften, IFM-GEOMAR, FB3, Marine Ecology/Experimental Ecology, Dsternbrooker Weg 20, 24105 Kiel, Germany</json:string></affiliations></json:item><json:item><name>Faustin Nkubito</name><affiliations><json:string>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</json:string></affiliations></json:item></author><articleId><json:string>fbn086</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>research-article</json:string></originalGenre><abstract>Zooplankton trade-offs to maximize fitness in highly dynamic environments such as estuaries have long been a question of central importance for understanding the ecology and evolution of estuarine populations. 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For permissions, please email: journals.permissionsoxfordjournals.org</p></availability><date>2008-08-13</date></publicationStmt><notesStmt><note>Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Trade-offs of the copepod Eurytemora affinis in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary</title><author xml:id="author-1"><persName><forename type="first">David</forename><surname>Devreker</surname></persName><email>david_devreker@yahoo.fr</email><note type="biography">Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</note><affiliation>Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</affiliation><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><affiliation>Laboratoire d'Ecotoxicologie, Milieux Aquatique (LEMA), Facult des Sciences et Techniques, Universit du Havre, 76058, Le Havre Cedex BP 540, France</affiliation></author><author xml:id="author-2"><persName><forename type="first">Sami</forename><surname>Souissi</surname></persName><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation></author><author xml:id="author-3"><persName><forename type="first">Juan Carlos</forename><surname>Molinero</surname></persName><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><affiliation>Leibniz-Institut fr Meereswissenschaften, IFM-GEOMAR, FB3, Marine Ecology/Experimental Ecology, Dsternbrooker Weg 20, 24105 Kiel, Germany</affiliation></author><author xml:id="author-4"><persName><forename type="first">Faustin</forename><surname>Nkubito</surname></persName><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation></author></analytic><monogr><title level="j">Journal of Plankton Research</title><idno type="pISSN">0142-7873</idno><idno type="eISSN">1464-3774</idno><imprint><publisher>Oxford University Press</publisher><date type="published" when="2008-12"></date><biblScope unit="volume">30</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="1329">1329</biblScope><biblScope unit="page" to="1342">1342</biblScope></imprint></monogr><idno type="istex">1983A1FB642EA95D11382457CA19B8AF37985CEE</idno><idno type="DOI">10.1093/plankt/fbn086</idno><idno type="ArticleID">fbn086</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2008-08-13</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>Zooplankton trade-offs to maximize fitness in highly dynamic environments such as estuaries have long been a question of central importance for understanding the ecology and evolution of estuarine populations. We present here the first comprehensive data set on the population dynamics of the copepod Eurytemmora affinis obtained from 50 h high-frequency sampling in the Seine estuary during spring. Maximum densities of E. affinis were associated with low salinities (0.510) and recorded during the ebb in the bottom layer. Vertical variations in population structure were observed between ebb and flood, as well as the spatial distribution of developmental stages. Nauplii were concentrated in the low salinity zone just above salinity 5, and copepodids and adults distributed more widely relative to salinity than nauplii in bottom waters, whereas the opposite pattern was observed in surface waters. The sex-ratio and the proportion ovigerous females:non-ovigerous females appeared to be related to tidal cycle and depth, with higher relative densities of non-ovigerous females in bottom waters and around low tide. The vertical variations noticed during the tidal cycle suggest a strategy by the species to avoid flushing by surface currents, although it may incur a cost due to the greater presence of predators in bottom waters.</p></abstract></profileDesc><revisionDesc><change when="2008-08-13">Created</change><change when="2008-12">Published</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2016-10-14">References added</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/1983A1FB642EA95D11382457CA19B8AF37985CEE/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="corpus oup" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//NLM//DTD Journal Publishing DTD v2.3 20070202//EN" URI="journalpublishing.dtd" name="istex:docType"></istex:docType><istex:document><article article-type="research-article"><front><journal-meta><journal-id journal-id-type="publisher-id">plankt</journal-id><journal-id journal-id-type="hwp">plankt</journal-id><journal-title>Journal of Plankton Research</journal-title><issn pub-type="ppub">0142-7873</issn><issn pub-type="epub">1464-3774</issn><publisher><publisher-name>Oxford University Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1093/plankt/fbn086</article-id><article-id pub-id-type="publisher-id">fbn086</article-id><article-categories><subj-group subj-group-type="heading"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Trade-offs of the copepod <italic>Eurytemora affinis</italic> in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Devreker</surname><given-names>David</given-names></name><xref ref-type="aff" rid="af1">1</xref><xref ref-type="aff" rid="af2">2</xref><xref ref-type="corresp" rid="cor1">*</xref><xref ref-type="author-notes" rid="FN1">†</xref></contrib><contrib contrib-type="author"><name><surname>Souissi</surname><given-names>Sami</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib><contrib contrib-type="author"><name><surname>Molinero</surname><given-names>Juan Carlos</given-names></name><xref ref-type="aff" rid="af1">1</xref><xref ref-type="aff" rid="af3">3</xref></contrib><contrib contrib-type="author"><name><surname>Nkubito</surname><given-names>Faustin</given-names></name><xref ref-type="aff" rid="af1">1</xref></contrib></contrib-group><aff id="af1"><label>1</label><institution>Université des Sciences et Technologies de Lille- Lille 1</institution>, <addr-line>Laboratoire d'Océanologie et de Géosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux</addr-line>, <country>France</country></aff><aff id="af2"><label>2</label><addr-line>Laboratoire d'Ecotoxicologie, Milieux Aquatique (LEMA), Faculté des Sciences et Techniques</addr-line>, <institution>Université du Havre</institution>, <addr-line>76058, Le Havre Cedex BP 540</addr-line>, <country>France</country></aff><aff id="af3"><label>3</label><addr-line>Leibniz-Institut für Meereswissenschaften, IFM-GEOMAR, FB3, Marine Ecology/Experimental Ecology, Düsternbrooker Weg 20, 24105 Kiel</addr-line>, <country>Germany</country></aff><author-notes><fn id="FN1"><label>†</label><p>Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</p></fn><corresp id="cor1"><label>*</label><sc>corresponding author</sc>: <email>david_devreker@yahoo.fr</email></corresp><fn><p>Corresponding editor: Mark J. Gibbons</p></fn></author-notes><pub-date pub-type="ppub"><month>12</month><year>2008</year></pub-date><pub-date pub-type="epub"><day>13</day><month>8</month><year>2008</year></pub-date><volume>30</volume><issue>12</issue><fpage>1329</fpage><lpage>1342</lpage><history><date date-type="received"><day>16</day><month>4</month><year>2008</year></date><date date-type="accepted"><day>8</day><month>8</month><year>2008</year></date><date date-type="accepted"><day>11</day><month>8</month><year>2008</year></date></history><copyright-statement>© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org</copyright-statement><copyright-year>2008</copyright-year><abstract><p>Zooplankton trade-offs to maximize fitness in highly dynamic environments such as estuaries have long been a question of central importance for understanding the ecology and evolution of estuarine populations. We present here the first comprehensive data set on the population dynamics of the copepod Eurytemmora affinis obtained from 50 h high-frequency sampling in the Seine estuary during spring. Maximum densities of E. affinis were associated with low salinities (0.5–10) and recorded during the ebb in the bottom layer. Vertical variations in population structure were observed between ebb and flood, as well as the spatial distribution of developmental stages. Nauplii were concentrated in the low salinity zone just above salinity 5, and copepodids and adults distributed more widely relative to salinity than nauplii in bottom waters, whereas the opposite pattern was observed in surface waters. The sex-ratio and the proportion “ovigerous females:non-ovigerous females” appeared to be related to tidal cycle and depth, with higher relative densities of non-ovigerous females in bottom waters and around low tide. The vertical variations noticed during the tidal cycle suggest a strategy by the species to avoid flushing by surface currents, although it may incur a cost due to the greater presence of predators in bottom waters.</p></abstract></article-meta></front></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Trade-offs of the copepod Eurytemora affinis in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Trade-offs of the copepod Eurytemora affinis in mega-tidal estuaries: insights from high frequency sampling in the Seine estuary</title></titleInfo><name type="personal"><namePart type="given">David</namePart><namePart type="family">Devreker</namePart><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><affiliation>Laboratoire d'Ecotoxicologie, Milieux Aquatique (LEMA), Facult des Sciences et Techniques, Universit du Havre, 76058, Le Havre Cedex BP 540, France</affiliation><affiliation>E-mail: david_devreker@yahoo.fr</affiliation><description>Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Sami</namePart><namePart type="family">Souissi</namePart><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Juan Carlos</namePart><namePart type="family">Molinero</namePart><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><affiliation>Leibniz-Institut fr Meereswissenschaften, IFM-GEOMAR, FB3, Marine Ecology/Experimental Ecology, Dsternbrooker Weg 20, 24105 Kiel, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Faustin</namePart><namePart type="family">Nkubito</namePart><affiliation>Universit des Sciences et Technologies de Lille- Lille 1, Laboratoire d'Ocanologie et de Gosciences, UMR CNRS 8187 LOG, Station Marine de Wimereux, 28 avenue Foch, 62930 Wimereux, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="research-article"></genre><originInfo><publisher>Oxford University Press</publisher><dateIssued encoding="w3cdtf">2008-12</dateIssued><dateCreated encoding="w3cdtf">2008-08-13</dateCreated><copyrightDate encoding="w3cdtf">2008</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>Zooplankton trade-offs to maximize fitness in highly dynamic environments such as estuaries have long been a question of central importance for understanding the ecology and evolution of estuarine populations. We present here the first comprehensive data set on the population dynamics of the copepod Eurytemmora affinis obtained from 50 h high-frequency sampling in the Seine estuary during spring. Maximum densities of E. affinis were associated with low salinities (0.510) and recorded during the ebb in the bottom layer. Vertical variations in population structure were observed between ebb and flood, as well as the spatial distribution of developmental stages. Nauplii were concentrated in the low salinity zone just above salinity 5, and copepodids and adults distributed more widely relative to salinity than nauplii in bottom waters, whereas the opposite pattern was observed in surface waters. The sex-ratio and the proportion ovigerous females:non-ovigerous females appeared to be related to tidal cycle and depth, with higher relative densities of non-ovigerous females in bottom waters and around low tide. The vertical variations noticed during the tidal cycle suggest a strategy by the species to avoid flushing by surface currents, although it may incur a cost due to the greater presence of predators in bottom waters.</abstract><note type="footnotes">Present Address: Station Marine de Wimereux, 28 Avenue Foch, BP 80, F-62930 Wimereux, France.</note><relatedItem type="host"><titleInfo><title>Journal of Plankton Research</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0142-7873</identifier><identifier type="eISSN">1464-3774</identifier><identifier type="PublisherID">plankt</identifier><identifier type="PublisherID-hwp">plankt</identifier><part><date>2008</date><detail type="volume"><caption>vol.</caption><number>30</number></detail><detail type="issue"><caption>no.</caption><number>12</number></detail><extent unit="pages"><start>1329</start><end>1342</end></extent></part></relatedItem><identifier type="istex">1983A1FB642EA95D11382457CA19B8AF37985CEE</identifier><identifier type="DOI">10.1093/plankt/fbn086</identifier><identifier type="ArticleID">fbn086</identifier><accessCondition type="use and reproduction" contentType="copyright">The Author 2008. Published by Oxford University Press. All rights reserved. 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