Spatial and ontogenetic variability in the microhabitat use of stream‐dwelling spined loach (Cobitis taenia) and stone loach (Barbatula barbatula)
Identifieur interne : 000532 ( Istex/Corpus ); précédent : 000531; suivant : 000533Spatial and ontogenetic variability in the microhabitat use of stream‐dwelling spined loach (Cobitis taenia) and stone loach (Barbatula barbatula)
Auteurs : G. H. Copp ; L. VilizziSource :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 2004-12.
Abstract
Ontogenetic and spatial variability in microhabitat use of spined loach Cobitis taenia (Linnaeus), considered as one species for the purposes of this study, and stone loach Barbatula barbatula (Linnaeus) were examined in the River Great Ouse basin, England, using multivariate and habitat suitability methods, including a technique for handling spatial variation in collections of preference curves. Distinct ordinations of spined age classes and stone loach developmental stages, respectively, in canonical correspondence analysis of species × variables × samples relationships suggest that the two species occupy completely different microhabitats; however, young‐of‐the‐year spined loach occurred more often than expected with all developmental stages of stone loach except young larvae. Water velocity and filamentous algae were the most influential microhabitat variables, the latter decreasing in importance with increasing age of both fish species. Preferred water velocities generally decreased with age in spined loach and increased in stone loach, with substratum size generally increasing with fish age in both species. Spatial variation in microhabitat preferences was great in both species but less so in the spined loach, suggesting that limited plasticity in habitat use could account, at least in part, for the latter species’ limited distribution and abundance in the catchment. Preference curves for a species, if generated and verified for all life intervals and all seasons, could be used as a management tool for a given stream or sector of river basin. But preference curves should be generated for each location to ensure that river management decisions with regard habitat and species conservation consider local‐level species requirements. Thus, a multi‐(eco)species and multi‐scale approach is required in habitat suitability assessments.
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DOI: 10.1111/j.1439-0426.2004.00605.x
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H.</forename><surname>Copp</surname></persName><affiliation>CEFAS Lowestoft Laboratory, Lowestoft, Suffolk, UK</affiliation></author><author><persName><forename type="first">L.</forename><surname>Vilizzi</surname></persName><affiliation>Viale Italia, Sassari, Italy</affiliation></author></analytic><monogr><title level="j">Journal of Applied Ichthyology</title><idno type="pISSN">0175-8659</idno><idno type="eISSN">1439-0426</idno><idno type="DOI">10.1111/(ISSN)1439-0426</idno><imprint><publisher>Blackwell Verlag GmbH</publisher><pubPlace>Berlin, Germany</pubPlace><date type="published" when="2004-12"></date><biblScope unit="volume">20</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="440">440</biblScope><biblScope unit="page" to="451">451</biblScope></imprint></monogr><idno type="istex">31F721F79B27C43DF99E3E33ECA90419EACB9C5E</idno><idno type="DOI">10.1111/j.1439-0426.2004.00605.x</idno><idno type="ArticleID">JAI605</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2004</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Ontogenetic and spatial variability in microhabitat use of spined loach Cobitis taenia (Linnaeus), considered as one species for the purposes of this study, and stone loach Barbatula barbatula (Linnaeus) were examined in the River Great Ouse basin, England, using multivariate and habitat suitability methods, including a technique for handling spatial variation in collections of preference curves. 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Preference curves for a species, if generated and verified for all life intervals and all seasons, could be used as a management tool for a given stream or sector of river basin. But preference curves should be generated for each location to ensure that river management decisions with regard habitat and species conservation consider local‐level species requirements. 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Copp, CEFAS Salmon and Freshwater Team, Pakefield Road, Lowestoft, Suffolk NR33 OHT, UK.
E‐mail: <email>g.h.copp@cefas.co.uk</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:JAI.JAI605.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received: February 7, 2004 Accepted: July 10, 2004</unparsedEditorialHistory><countGroup><count type="figureTotal" number="5"></count><count type="tableTotal" number="8"></count></countGroup><titleGroup><title type="main">Spatial and ontogenetic variability in the microhabitat use of stream‐dwelling spined loach (<i>Cobitis taenia</i>) and stone loach (<i>Barbatula barbatula</i>)</title><title type="shortAuthors">G. H. Copp and L. Vilizzi</title><title type="short">Microhabitat of stream loaches</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1"><personName><givenNames>G. H.</givenNames><familyName>Copp</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a2"><personName><givenNames>L.</givenNames><familyName>Vilizzi</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="GB"><unparsedAffiliation>CEFAS Lowestoft Laboratory, Lowestoft, Suffolk, UK</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="IT"><unparsedAffiliation>Viale Italia, Sassari, Italy</unparsedAffiliation></affiliation></affiliationGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Summary</title><p>Ontogenetic and spatial variability in microhabitat use of spined loach <i>Cobitis taenia</i> (Linnaeus), considered as one species for the purposes of this study, and stone loach <i>Barbatula barbatula</i> (Linnaeus) were examined in the River Great Ouse basin, England, using multivariate and habitat suitability methods, including a technique for handling spatial variation in collections of preference curves. Distinct ordinations of spined age classes and stone loach developmental stages, respectively, in canonical correspondence analysis of species × variables × samples relationships suggest that the two species occupy completely different microhabitats; however, young‐of‐the‐year spined loach occurred more often than expected with all developmental stages of stone loach except young larvae. Water velocity and filamentous algae were the most influential microhabitat variables, the latter decreasing in importance with increasing age of both fish species. Preferred water velocities generally decreased with age in spined loach and increased in stone loach, with substratum size generally increasing with fish age in both species. Spatial variation in microhabitat preferences was great in both species but less so in the spined loach, suggesting that limited plasticity in habitat use could account, at least in part, for the latter species’ limited distribution and abundance in the catchment. Preference curves for a species, if generated and verified for all life intervals and all seasons, could be used as a management tool for a given stream or sector of river basin. But preference curves should be generated for each location to ensure that river management decisions with regard habitat and species conservation consider local‐level species requirements. Thus, a multi‐(eco)species and multi‐scale approach is required in habitat suitability assessments.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Spatial and ontogenetic variability in the microhabitat use of stream‐dwelling spined loach (Cobitis taenia) and stone loach (Barbatula barbatula)</title></titleInfo><titleInfo type="abbreviated"><title>Microhabitat of stream loaches</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Spatial and ontogenetic variability in the microhabitat use of stream‐dwelling spined loach (</title></titleInfo><name type="personal"><namePart type="given">G. H.</namePart><namePart type="family">Copp</namePart><affiliation>CEFAS Lowestoft Laboratory, Lowestoft, Suffolk, UK</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">L.</namePart><namePart type="family">Vilizzi</namePart><affiliation>Viale Italia, Sassari, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article">article</genre><originInfo><publisher>Blackwell Verlag GmbH</publisher><place><placeTerm type="text">Berlin, Germany</placeTerm></place><dateIssued encoding="w3cdtf">2004-12</dateIssued><edition>Received: February 7, 2004 Accepted: July 10, 2004</edition><copyrightDate encoding="w3cdtf">2004</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">5</extent><extent unit="tables">8</extent></physicalDescription><abstract lang="en">Ontogenetic and spatial variability in microhabitat use of spined loach Cobitis taenia (Linnaeus), considered as one species for the purposes of this study, and stone loach Barbatula barbatula (Linnaeus) were examined in the River Great Ouse basin, England, using multivariate and habitat suitability methods, including a technique for handling spatial variation in collections of preference curves. Distinct ordinations of spined age classes and stone loach developmental stages, respectively, in canonical correspondence analysis of species × variables × samples relationships suggest that the two species occupy completely different microhabitats; however, young‐of‐the‐year spined loach occurred more often than expected with all developmental stages of stone loach except young larvae. Water velocity and filamentous algae were the most influential microhabitat variables, the latter decreasing in importance with increasing age of both fish species. Preferred water velocities generally decreased with age in spined loach and increased in stone loach, with substratum size generally increasing with fish age in both species. Spatial variation in microhabitat preferences was great in both species but less so in the spined loach, suggesting that limited plasticity in habitat use could account, at least in part, for the latter species’ limited distribution and abundance in the catchment. Preference curves for a species, if generated and verified for all life intervals and all seasons, could be used as a management tool for a given stream or sector of river basin. But preference curves should be generated for each location to ensure that river management decisions with regard habitat and species conservation consider local‐level species requirements. 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