Predictive Length–Dry Mass Regressions for Freshwater Invertebrates in a Pre‐Alpine Lake Littoral
Identifieur interne : 000752 ( Istex/Corpus ); précédent : 000751; suivant : 000753Predictive Length–Dry Mass Regressions for Freshwater Invertebrates in a Pre‐Alpine Lake Littoral
Auteurs : Daniel Baumg Rtner ; Karl-Otto RothhauptSource :
- International Review of Hydrobiology [ 1434-2944 ] ; 2003-09.
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Abstract
To date, no regressions for invertebrates from lentic environments are available to facilitate biomass estimation. Predictive length–dry mass regressions for 20 freshwater invertebrate taxa from a pre‐alpine lake littoral in Central Europe are presented here. Regressions were calculated by fitting a power function to body‐length parameters. For Gammarus roeseli, the head height, an easily measurable length parameter, was used. Differences between regressions of different taxa were confirmed by analyses of covariance. Equations for invertebrates grouped at a higher taxonomic level had lower coefficients of determination; therefore, the use of regression equations at the lowest possible taxonomic level is indicated. A comparison of regressions with those published for related taxa in streams revealed significant differences, supporting the opinion that equations should be applied carefully and their use restricted to waterbodies with similar abiotic conditions.
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DOI: 10.1002/iroh.200310632
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Predictive length–dry mass regressions for 20 freshwater invertebrate taxa from a pre‐alpine lake littoral in Central Europe are presented here. Regressions were calculated by fitting a power function to body‐length parameters. For Gammarus roeseli, the head height, an easily measurable length parameter, was used. Differences between regressions of different taxa were confirmed by analyses of covariance. Equations for invertebrates grouped at a higher taxonomic level had lower coefficients of determination; therefore, the use of regression equations at the lowest possible taxonomic level is indicated. 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A comparison of regressions with those published for related taxa in streams revealed significant differences, supporting the opinion that equations should be applied carefully and their use restricted to waterbodies with similar abiotic conditions.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Predictive Length–Dry Mass Regressions for Freshwater Invertebrates in a Pre‐Alpine Lake Littoral</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Length–Dry Mass Regressions</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Predictive Length–Dry Mass Regressions for Freshwater Invertebrates in a Pre‐Alpine Lake Littoral</title></titleInfo><name type="personal"><namePart type="given">Daniel</namePart><namePart type="family">Baumgärtner</namePart><affiliation>E-mail: daniel.dba@web.de</affiliation><affiliation>Limnological Institute, Department of Biology, University of Konstanz, 78457 Konstanz, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Karl‐Otto</namePart><namePart type="family">Rothhaupt</namePart><affiliation>Limnological Institute, Department of Biology, University of Konstanz, 78457 Konstanz, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article">article</genre><originInfo><publisher>WILEY‐VCH Verlag</publisher><place><placeTerm type="text">Berlin</placeTerm></place><dateIssued encoding="w3cdtf">2003-09</dateIssued><dateCaptured encoding="w3cdtf">2002-09-05</dateCaptured><dateValid encoding="w3cdtf">2003-01-16</dateValid><copyrightDate encoding="w3cdtf">2003</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">2</extent><extent unit="tables">3</extent><extent unit="references">23</extent></physicalDescription><abstract lang="en">To date, no regressions for invertebrates from lentic environments are available to facilitate biomass estimation. Predictive length–dry mass regressions for 20 freshwater invertebrate taxa from a pre‐alpine lake littoral in Central Europe are presented here. Regressions were calculated by fitting a power function to body‐length parameters. For Gammarus roeseli, the head height, an easily measurable length parameter, was used. Differences between regressions of different taxa were confirmed by analyses of covariance. Equations for invertebrates grouped at a higher taxonomic level had lower coefficients of determination; therefore, the use of regression equations at the lowest possible taxonomic level is indicated. A comparison of regressions with those published for related taxa in streams revealed significant differences, supporting the opinion that equations should be applied carefully and their use restricted to waterbodies with similar abiotic conditions.</abstract><subject lang="en"><genre>Keywords</genre><topic>biomass</topic><topic>dry mass</topic><topic>body length</topic><topic>invertebrates</topic><topic>littoral</topic></subject><relatedItem type="host"><titleInfo><title>International Review of Hydrobiology</title><subTitle>A Journal Covering all Aspects of Limnology and Marine Biology</subTitle></titleInfo><titleInfo type="abbreviated"><title>International Review of Hydrobiology</title></titleInfo><subject><genre>article category</genre><topic>Original Paper</topic></subject><identifier type="ISSN">1434-2944</identifier><identifier type="eISSN">1522-2632</identifier><identifier type="DOI">10.1002/(ISSN)1522-2632</identifier><identifier type="PublisherID">IROH</identifier><part><date>2003</date><detail type="volume"><caption>vol.</caption><number>88</number></detail><detail type="issue"><caption>no.</caption><number>5</number></detail><extent unit="pages"><start>453</start><end>463</end><total>11</total></extent></part></relatedItem><identifier type="istex">1C95BEE10A20FB5645B425C4F587E76B08B8FDBA</identifier><identifier type="DOI">10.1002/iroh.200310632</identifier><identifier type="ArticleID">IROH200310632</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2003 WILEY‐VCH Verlag GmbH & Co. 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