Influence of water quality, habitat and species richness on brown trout populations
Identifieur interne : 000D83 ( Main/Exploration ); précédent : 000D82; suivant : 000D84Influence of water quality, habitat and species richness on brown trout populations
Auteurs : A. G. Eklöv [Suède] ; L. A. Greenberg [Suède] ; C. Brönmark [Suède] ; P. Larsson [Suède] ; O. Berglund [Suède]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 1999-01.
English descriptors
Abstract
The influence of water quality, physical habitat and species richness on the occurrence, density and size of brown trout at 216 stream sites in southern Sweden was studied. Discriminant analysis showed that the occurrence of trout at a locality was largely determined by oxygen conditions and medium‐sized substrata. At localities where trout occurred, the density of + trout was highest in narrow streams with high oxygen concentrations. For older trout, >0+ in age, stream size and temperature were negatively related to density. Biotic factors also appeared to affect trout density, as trout density was inversely related to abundance of predators and coexisting species. Even intraspecific competition appeared to be important as length of 0+ trout was inversely related to trout density. It is suggested that improvements of water quality may be an effective way to restore sea trout populations in southern Sweden, especially in narrow streams where smolt production has the highest potential.
Url:
DOI: 10.1111/j.1095-8649.1999.tb00610.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000645
- to stream Istex, to step Curation: 000645
- to stream Istex, to step Checkpoint: 000947
- to stream Main, to step Merge: 000E31
- to stream Main, to step Curation: 000D83
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Influence of water quality, habitat and species richness on brown trout populations</title><author><name sortKey="Eklov, A G" sort="Eklov, A G" uniqKey="Eklov A" first="A. G." last="Eklöv">A. G. Eklöv</name></author><author><name sortKey="Greenberg, L A" sort="Greenberg, L A" uniqKey="Greenberg L" first="L. A." last="Greenberg">L. A. Greenberg</name></author><author><name sortKey="Bronmark, C" sort="Bronmark, C" uniqKey="Bronmark C" first="C." last="Brönmark">C. Brönmark</name></author><author><name sortKey="Larsson, P" sort="Larsson, P" uniqKey="Larsson P" first="P." last="Larsson">P. Larsson</name></author><author><name sortKey="Berglund, O" sort="Berglund, O" uniqKey="Berglund O" first="O." last="Berglund">O. Berglund</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:B99336A3FC1EC84EAF86B7FFF2C1C011E1167E9A</idno><date when="1999" year="1999">1999</date><idno type="doi">10.1111/j.1095-8649.1999.tb00610.x</idno><idno type="url">https://api.istex.fr/document/B99336A3FC1EC84EAF86B7FFF2C1C011E1167E9A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000645</idno><idno type="wicri:Area/Istex/Curation">000645</idno><idno type="wicri:Area/Istex/Checkpoint">000947</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000947</idno><idno type="wicri:doubleKey">0022-1112:1999:Eklov A:influence:of:water</idno><idno type="wicri:Area/Main/Merge">000E31</idno><idno type="wicri:Area/Main/Curation">000D83</idno><idno type="wicri:Area/Main/Exploration">000D83</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Influence of water quality, habitat and species richness on brown trout populations</title><author><name sortKey="Eklov, A G" sort="Eklov, A G" uniqKey="Eklov A" first="A. G." last="Eklöv">A. G. Eklöv</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Ecology, University of Lund, S223 62 Lund</wicri:regionArea><wicri:noRegion>S223 62 Lund</wicri:noRegion></affiliation></author><author><name sortKey="Greenberg, L A" sort="Greenberg, L A" uniqKey="Greenberg L" first="L. A." last="Greenberg">L. A. Greenberg</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Ecology, University of Lund, S223 62 Lund</wicri:regionArea><wicri:noRegion>S223 62 Lund</wicri:noRegion></affiliation></author><author><name sortKey="Bronmark, C" sort="Bronmark, C" uniqKey="Bronmark C" first="C." last="Brönmark">C. Brönmark</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Ecology, University of Lund, S223 62 Lund</wicri:regionArea><wicri:noRegion>S223 62 Lund</wicri:noRegion></affiliation></author><author><name sortKey="Larsson, P" sort="Larsson, P" uniqKey="Larsson P" first="P." last="Larsson">P. Larsson</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Ecology, University of Lund, S223 62 Lund</wicri:regionArea><wicri:noRegion>S223 62 Lund</wicri:noRegion></affiliation></author><author><name sortKey="Berglund, O" sort="Berglund, O" uniqKey="Berglund O" first="O." last="Berglund">O. Berglund</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Ecology, University of Lund, S223 62 Lund</wicri:regionArea><wicri:noRegion>S223 62 Lund</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fish Biology</title><idno type="ISSN">0022-1112</idno><idno type="eISSN">1095-8649</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1999-01">1999-01</date><biblScope unit="volume">54</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="33">33</biblScope><biblScope unit="page" to="43">43</biblScope></imprint><idno type="ISSN">0022-1112</idno></series><idno type="istex">B99336A3FC1EC84EAF86B7FFF2C1C011E1167E9A</idno><idno type="DOI">10.1111/j.1095-8649.1999.tb00610.x</idno><idno type="ArticleID">JFB33</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1112</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Salmo trutta</term><term>growth</term><term>interspecific interaction</term><term>intraspecific competition</term><term>pollutant</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The influence of water quality, physical habitat and species richness on the occurrence, density and size of brown trout at 216 stream sites in southern Sweden was studied. Discriminant analysis showed that the occurrence of trout at a locality was largely determined by oxygen conditions and medium‐sized substrata. At localities where trout occurred, the density of + trout was highest in narrow streams with high oxygen concentrations. For older trout, >0+ in age, stream size and temperature were negatively related to density. Biotic factors also appeared to affect trout density, as trout density was inversely related to abundance of predators and coexisting species. Even intraspecific competition appeared to be important as length of 0+ trout was inversely related to trout density. It is suggested that improvements of water quality may be an effective way to restore sea trout populations in southern Sweden, especially in narrow streams where smolt production has the highest potential.</div></front></TEI><affiliations><list><country><li>Suède</li></country></list><tree><country name="Suède"><noRegion><name sortKey="Eklov, A G" sort="Eklov, A G" uniqKey="Eklov A" first="A. G." last="Eklöv">A. G. Eklöv</name></noRegion><name sortKey="Berglund, O" sort="Berglund, O" uniqKey="Berglund O" first="O." last="Berglund">O. Berglund</name><name sortKey="Bronmark, C" sort="Bronmark, C" uniqKey="Bronmark C" first="C." last="Brönmark">C. Brönmark</name><name sortKey="Greenberg, L A" sort="Greenberg, L A" uniqKey="Greenberg L" first="L. A." last="Greenberg">L. A. Greenberg</name><name sortKey="Larsson, P" sort="Larsson, P" uniqKey="Larsson P" first="P." last="Larsson">P. Larsson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Eau/explor/LotaV3/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000D83 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000D83 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Eau
|area= LotaV3
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:B99336A3FC1EC84EAF86B7FFF2C1C011E1167E9A
|texte= Influence of water quality, habitat and species richness on brown trout populations
}}
| This area was generated with Dilib version V0.6.39. |  |