Effects of elevated turbidity on shallow lake fish communities
Identifieur interne : 002265 ( Istex/Curation ); précédent : 002264; suivant : 002266Effects of elevated turbidity on shallow lake fish communities
Auteurs : John W. Hayes [Nouvelle-Zélande] ; Martin J. Rutledge [Nouvelle-Zélande] ; Benjamin L. Chisnall [Nouvelle-Zélande] ; Frederick J. Ward [Canada]Source :
- Environmental Biology of Fishes [ 0378-1909 ] ; 1992-10-01.
Abstract
Synopsis: We compared the fish communities of two shallow lakes in the lower Waikato River basin, North Island, New Zealand, to determine the effects of elevated suspended solids (SS) and collapse of submerged macrophytes. Lake Waahi was turbid (20–40 g m-3 SS) and devoid of submerged macrophytes whereas Lake Whangape was clearer (5 g m-3 SS) and dominated by submerged macrophytes. The lakes had similar fish species richness and had nine major species in common; representing eight families including Anguillidae, Retropinnidae, Galaxiidae, Eleotridae, Mugilidae, Ictaluridae, Poeciliidae, and Cyprinidae (two species). The only major fish that was absent from Lake Waahi was a lacustrine form of the common smelt, Retropinna retropinna, which disappeared after the lake became turbid in the late 1970s. CPUE, condition, and size of most species in Lake Waahi were similar to, or greater than, those in Lake Whangape. Lake Whangape clearly exceeded Lake Waahi only for CPUE of two species. Within Lake Whangape two species displayed significantly greater condition, and one species greater size, in a turbid arm of the lake than in the main basin. Apart from lacustrine Retropinna retropinna, the fish in these lakes appear well adapted to cope with, or to avoid, the direct toxic effects of suspended and settleable solids on sensitive early developmental stages. In Lake Waahi loss of cover and food provided by submerged macrophytes appears to have been compensated for by increased turbidity and an associated increase in the biomass of the mysid, Tenagomysis chiltoni (a major prey item).
Url:
DOI: 10.1007/BF00002190
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Box 6016, Rotorua, New Zealand</mods:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua</wicri:regionArea></affiliation></author><author><name sortKey="Chisnall, Benjamin L" sort="Chisnall, Benjamin L" uniqKey="Chisnall B" first="Benjamin L." last="Chisnall">Benjamin L. Chisnall</name><affiliation wicri:level="1"><mods:affiliation>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua, New Zealand</mods:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua</wicri:regionArea></affiliation></author><author><name sortKey="Ward, Frederick J" sort="Ward, Frederick J" uniqKey="Ward F" first="Frederick J." last="Ward">Frederick J. Ward</name><affiliation wicri:level="1"><mods:affiliation>Department of Zoology, University of Manitoba, R3T 2N2, Winnipeg, Manitoba, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Zoology, University of Manitoba, R3T 2N2, Winnipeg, Manitoba</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:54A930DBE0406A81DF517102744527940F3743F6</idno><date when="1992" year="1992">1992</date><idno type="doi">10.1007/BF00002190</idno><idno type="url">https://api-v5.istex.fr/document/54A930DBE0406A81DF517102744527940F3743F6/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002265</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002265</idno><idno type="wicri:Area/Istex/Curation">002265</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Effects of elevated turbidity on shallow lake fish communities</title><author><name sortKey="Hayes, John W" sort="Hayes, John W" uniqKey="Hayes J" first="John W." last="Hayes">John W. Hayes</name><affiliation wicri:level="1"><mods:affiliation>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua, New Zealand</mods:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua</wicri:regionArea></affiliation></author><author><name sortKey="Rutledge, Martin J" sort="Rutledge, Martin J" uniqKey="Rutledge M" first="Martin J." last="Rutledge">Martin J. Rutledge</name><affiliation wicri:level="1"><mods:affiliation>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua, New Zealand</mods:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua</wicri:regionArea></affiliation></author><author><name sortKey="Chisnall, Benjamin L" sort="Chisnall, Benjamin L" uniqKey="Chisnall B" first="Benjamin L." last="Chisnall">Benjamin L. Chisnall</name><affiliation wicri:level="1"><mods:affiliation>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua, New Zealand</mods:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Fisheries Research Centre, Ministry of Agriculture and Fisheries, P. O. Box 6016, Rotorua</wicri:regionArea></affiliation></author><author><name sortKey="Ward, Frederick J" sort="Ward, Frederick J" uniqKey="Ward F" first="Frederick J." last="Ward">Frederick J. Ward</name><affiliation wicri:level="1"><mods:affiliation>Department of Zoology, University of Manitoba, R3T 2N2, Winnipeg, Manitoba, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Zoology, University of Manitoba, R3T 2N2, Winnipeg, Manitoba</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Environmental Biology of Fishes</title><title level="j" type="abbrev">Environ Biol Fish</title><idno type="ISSN">0378-1909</idno><idno type="eISSN">1573-5133</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1992-10-01">1992-10-01</date><biblScope unit="volume">35</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="149">149</biblScope><biblScope unit="page" to="168">168</biblScope></imprint><idno type="ISSN">0378-1909</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0378-1909</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Synopsis: We compared the fish communities of two shallow lakes in the lower Waikato River basin, North Island, New Zealand, to determine the effects of elevated suspended solids (SS) and collapse of submerged macrophytes. Lake Waahi was turbid (20–40 g m-3 SS) and devoid of submerged macrophytes whereas Lake Whangape was clearer (5 g m-3 SS) and dominated by submerged macrophytes. The lakes had similar fish species richness and had nine major species in common; representing eight families including Anguillidae, Retropinnidae, Galaxiidae, Eleotridae, Mugilidae, Ictaluridae, Poeciliidae, and Cyprinidae (two species). The only major fish that was absent from Lake Waahi was a lacustrine form of the common smelt, Retropinna retropinna, which disappeared after the lake became turbid in the late 1970s. CPUE, condition, and size of most species in Lake Waahi were similar to, or greater than, those in Lake Whangape. Lake Whangape clearly exceeded Lake Waahi only for CPUE of two species. Within Lake Whangape two species displayed significantly greater condition, and one species greater size, in a turbid arm of the lake than in the main basin. Apart from lacustrine Retropinna retropinna, the fish in these lakes appear well adapted to cope with, or to avoid, the direct toxic effects of suspended and settleable solids on sensitive early developmental stages. In Lake Waahi loss of cover and food provided by submerged macrophytes appears to have been compensated for by increased turbidity and an associated increase in the biomass of the mysid, Tenagomysis chiltoni (a major prey item).</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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