Field estimations of temperature-dependent processes: case growth of young burbot
Identifieur interne : 000B56 ( Main/Exploration ); précédent : 000B55; suivant : 000B57Field estimations of temperature-dependent processes: case growth of young burbot
Auteurs : Jakob Kjellman [Finlande] ; Anssi Eloranta [Finlande]Source :
- Hydrobiologia : (The Hague) [ 0018-8158 ] ; 2002.
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Abstract
In this study, the growth of young burbot (Lota lota) was temperature-dependent, but varied between age-groups. The growth of age-0 increased with temperatures 4-18°C. Growth of age-groups 1 and 2 was not significantly related to surface water temperatures and varied between the 2 years studied. This study was a re-evaluation of burbot sampled between 1978 and 1980 by plankton net, beach seine, and electric fishing in Lake Kuohijärvi, the Finnish Lake District. In the re-evaluation, growth was studied both as mm day-1 and as absolute growth (mm), whereas the original study did not include absolute growth. Though the methods should be equivalent, they are not. In our example, time between measurements, temperature, and growth were negatively correlated. When analysing mm day-1 the estimate variability, therefore, increased with temperature, whereas the variability was homogenously spread on the two axes, growth and degree-day, when analysing absolute growth. Field rate analyses contain an error risk that should be recognised when assessing the temperature-dependency of any processes, e.g. growth or mortality.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Field estimations of temperature-dependent processes: case growth of young burbot</title><author><name sortKey="Kjellman, Jakob" sort="Kjellman, Jakob" uniqKey="Kjellman J" first="Jakob" last="Kjellman">Jakob Kjellman</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Limnology and Environmental Protection, University of Helsinki, P.O. Box 27</s1><s2>00014, Helsinki</s2><s3>FIN</s3><sZ>1 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>00014, Helsinki</wicri:noRegion><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></affiliation></author><author><name sortKey="Eloranta, Anssi" sort="Eloranta, Anssi" uniqKey="Eloranta A" first="Anssi" last="Eloranta">Anssi Eloranta</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Central Finland Regional Environment Centre, P.O. Box 110</s1><s2>40101 Jyväskylä</s2><s3>FIN</s3><sZ>2 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>40101 Jyväskylä</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">03-0111126</idno><date when="2002">2002</date><idno type="stanalyst">PASCAL 03-0111126 INIST</idno><idno type="RBID">Pascal:03-0111126</idno><idno type="wicri:Area/PascalFrancis/Corpus">000093</idno><idno type="wicri:Area/PascalFrancis/Curation">000025</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000100</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000100</idno><idno type="wicri:doubleKey">0018-8158:2002:Kjellman J:field:estimations:of</idno><idno type="wicri:Area/Main/Merge">000B94</idno><idno type="wicri:Area/Main/Curation">000B56</idno><idno type="wicri:Area/Main/Exploration">000B56</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Field estimations of temperature-dependent processes: case growth of young burbot</title><author><name sortKey="Kjellman, Jakob" sort="Kjellman, Jakob" uniqKey="Kjellman J" first="Jakob" last="Kjellman">Jakob Kjellman</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Limnology and Environmental Protection, University of Helsinki, P.O. Box 27</s1><s2>00014, Helsinki</s2><s3>FIN</s3><sZ>1 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>00014, Helsinki</wicri:noRegion><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></affiliation></author><author><name sortKey="Eloranta, Anssi" sort="Eloranta, Anssi" uniqKey="Eloranta A" first="Anssi" last="Eloranta">Anssi Eloranta</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Central Finland Regional Environment Centre, P.O. Box 110</s1><s2>40101 Jyväskylä</s2><s3>FIN</s3><sZ>2 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>40101 Jyväskylä</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Hydrobiologia : (The Hague)</title><title level="j" type="abbreviated">Hydrobiologia : (Hague)</title><idno type="ISSN">0018-8158</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Hydrobiologia : (The Hague)</title><title level="j" type="abbreviated">Hydrobiologia : (Hague)</title><idno type="ISSN">0018-8158</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Finland</term><term>Growth rate</term><term>Lakes</term><term>Larva</term><term>Lota lota</term><term>Temperature</term><term>Young animal</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Taux croissance</term><term>Température</term><term>Larve</term><term>Animal jeune</term><term>Lac</term><term>Finlande</term><term>Lota lota</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Finlande</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Lac</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this study, the growth of young burbot (Lota lota) was temperature-dependent, but varied between age-groups. The growth of age-0 increased with temperatures 4-18°C. Growth of age-groups 1 and 2 was not significantly related to surface water temperatures and varied between the 2 years studied. This study was a re-evaluation of burbot sampled between 1978 and 1980 by plankton net, beach seine, and electric fishing in Lake Kuohijärvi, the Finnish Lake District. In the re-evaluation, growth was studied both as mm day<sup>-1</sup> and as absolute growth (mm), whereas the original study did not include absolute growth. Though the methods should be equivalent, they are not. In our example, time between measurements, temperature, and growth were negatively correlated. When analysing mm day<sup>-1</sup> the estimate variability, therefore, increased with temperature, whereas the variability was homogenously spread on the two axes, growth and degree-day, when analysing absolute growth. Field rate analyses contain an error risk that should be recognised when assessing the temperature-dependency of any processes, e.g. growth or mortality.</div></front></TEI><affiliations><list><country><li>Finlande</li></country><region><li>Uusimaa</li></region><settlement><li>Helsinki</li></settlement><orgName><li>Université d'Helsinki</li></orgName></list><tree><country name="Finlande"><region name="Uusimaa"><name sortKey="Kjellman, Jakob" sort="Kjellman, Jakob" uniqKey="Kjellman J" first="Jakob" last="Kjellman">Jakob Kjellman</name></region><name sortKey="Eloranta, Anssi" sort="Eloranta, Anssi" uniqKey="Eloranta A" first="Anssi" last="Eloranta">Anssi Eloranta</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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