Effects of water-level regulation on the nearshore fish community in boreal lakes
Identifieur interne : 000730 ( Main/Exploration ); précédent : 000729; suivant : 000731Effects of water-level regulation on the nearshore fish community in boreal lakes
Auteurs : Tapio Sutela [Finlande] ; Teppo Vehanen [Finlande]Source :
- Hydrobiologia : (The Hague) [ 0018-8158 ] ; 2008.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Lac, Milieu aquatique.
English descriptors
- KwdEn :
Abstract
The fish community in the littoral areas of eight regulated lakes and five reference lakes in Finland was sampled by electrofishing. No significant effect of winter drawdown on species richness was recorded across lakes. Total fish density for stony bottoms of the regulated and reference lakes averaged 19.3 and 32.7 individuals per 100 m2, respectively, but this difference was not statistically significant. The combined proportion of littoral fish species, including minnow (Phoxinus phoxinus), bullhead (Cottus gobio), alpine bullhead (Cottus poecilopus), nine-spined stickleback (Pungitius pungitius), and stone loach (Barbatula barbatula), supplemented with zoobenthos feeders ruffe (Gymnocephalus cemuus) and young burbot (Lota lota), was much lower in the regulated lakes than in the reference lakes. Besides winter drawdown, other variables, such as nutrient level and lake size, affected the fish community.
Affiliations:
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Box 140</s1><s2>00251 Helsinki</s2><s3>FIN</s3><sZ>1 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>00251 Helsinki</wicri:noRegion></affiliation></author><author><name sortKey="Vehanen, Teppo" sort="Vehanen, Teppo" uniqKey="Vehanen T" first="Teppo" last="Vehanen">Teppo Vehanen</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Finnish Game and Fisheries Research Institute, Oulu Game and Fisheries Research, Tutkijantie 2 E</s1><s2>90570 Oulu</s2><s3>FIN</s3><sZ>2 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>90570 Oulu</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">08-0471906</idno><date when="2008">2008</date><idno type="stanalyst">PASCAL 08-0471906 INIST</idno><idno type="RBID">Pascal:08-0471906</idno><idno type="wicri:Area/PascalFrancis/Corpus">000044</idno><idno type="wicri:Area/PascalFrancis/Curation">000074</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000049</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000049</idno><idno type="wicri:doubleKey">0018-8158:2008:Sutela T:effects:of:water</idno><idno type="wicri:Area/Main/Merge">000741</idno><idno type="wicri:Area/Main/Curation">000730</idno><idno type="wicri:Area/Main/Exploration">000730</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Effects of water-level regulation on the nearshore fish community in boreal lakes</title><author><name sortKey="Sutela, Tapio" sort="Sutela, Tapio" uniqKey="Sutela T" first="Tapio" last="Sutela">Tapio Sutela</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Finnish Environment Institute, P.O. Box 140</s1><s2>00251 Helsinki</s2><s3>FIN</s3><sZ>1 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>00251 Helsinki</wicri:noRegion></affiliation></author><author><name sortKey="Vehanen, Teppo" sort="Vehanen, Teppo" uniqKey="Vehanen T" first="Teppo" last="Vehanen">Teppo Vehanen</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Finnish Game and Fisheries Research Institute, Oulu Game and Fisheries Research, Tutkijantie 2 E</s1><s2>90570 Oulu</s2><s3>FIN</s3><sZ>2 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>90570 Oulu</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="2008">2008</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>Animal community</term><term>Aquatic environment</term><term>Boreal zone</term><term>Hydrobiology</term><term>Lakes</term><term>Level regulation</term><term>Pisces</term><term>Water level</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Niveau eau</term><term>Régulation niveau</term><term>Communauté animale</term><term>Lac</term><term>Zone boréale</term><term>Hydrobiologie</term><term>Milieu aquatique</term><term>Pisces</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Lac</term><term>Milieu aquatique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The fish community in the littoral areas of eight regulated lakes and five reference lakes in Finland was sampled by electrofishing. No significant effect of winter drawdown on species richness was recorded across lakes. Total fish density for stony bottoms of the regulated and reference lakes averaged 19.3 and 32.7 individuals per 100 m<sup>2</sup>, respectively, but this difference was not statistically significant. The combined proportion of littoral fish species, including minnow (Phoxinus phoxinus), bullhead (Cottus gobio), alpine bullhead (Cottus poecilopus), nine-spined stickleback (Pungitius pungitius), and stone loach (Barbatula barbatula), supplemented with zoobenthos feeders ruffe (Gymnocephalus cemuus) and young burbot (Lota lota), was much lower in the regulated lakes than in the reference lakes. Besides winter drawdown, other variables, such as nutrient level and lake size, affected the fish community.</div></front></TEI><affiliations><list><country><li>Finlande</li></country></list><tree><country name="Finlande"><noRegion><name sortKey="Sutela, Tapio" sort="Sutela, Tapio" uniqKey="Sutela T" first="Tapio" last="Sutela">Tapio Sutela</name></noRegion><name sortKey="Vehanen, Teppo" sort="Vehanen, Teppo" uniqKey="Vehanen T" first="Teppo" last="Vehanen">Teppo Vehanen</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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