How many fish populations in Finland are affected by acid precipitation?
Identifieur interne : 001245 ( Main/Exploration ); précédent : 001244; suivant : 001246How many fish populations in Finland are affected by acid precipitation?
Auteurs : Martti Rask [Finlande] ; Jaakko Mannio [Finlande] ; Martin Forsius [Finlande] ; Maximilian Posch [Finlande] ; J. Vuorinen [Finlande]Source :
- Environmental Biology of Fishes [ 0378-1909 ] ; 1995-01-01.
Descripteurs français
- Wicri :
- topic : Acidification.
English descriptors
- KwdEn :
Abstract
Synopsis: The number of fish populations affected or lost from small lakes in southern and central Finland due to acid precipitation is estimated. Tolerance limits (pH and labile aluminum) of common fish species were obtained from a fish status survey of 80 lakes. These tolerance values were used to estimate the proportion of affected lakes from the water chemistry data of 783 statistically selected lakes. The proportion of anthropogenically acidified lakes was estimated by calculating pre-acidification pH and aluminum concentrations of the lakes, using a steady-state model based on water chemistry. The number of fish populations for which acidification has affected growth or population structure was estimated at between 2200 and 4400. Out of these, the number of fish populations that have disappeared due to acid precipitation would be about 1000–2000. Almost 60% of the affected or lost populations are roach, Rutilus rutilus, the most sensitive of the common fish species in small lakes in southern and central Finland. Less than 15% of the damaged population is European perch, Perca fluviatilis, the most common species. This is due to the substantially higher tolerance of perch to acidified water in comparison with roach.
Url:
DOI: 10.1007/BF00002351
Affiliations:
- Finlande
- Päijät-Häme
- Evo (Finlande)
- Institut finlandais de recherche sur la chasse et la pêche, Station de recherche sur la chasse et la pêche d'Evo
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Vuorinen</name><affiliation wicri:level="1"><country xml:lang="fr">Finlande</country><wicri:regionArea>Finnish Game and Fisheries Research Institute, P.O. Box 202, FIN-00151, Helsinki</wicri:regionArea><wicri:noRegion>Helsinki</wicri:noRegion></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="1995-01-01">1995-01-01</date><biblScope unit="volume">42</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="51">51</biblScope><biblScope unit="page" to="63">63</biblScope></imprint><idno type="ISSN">0378-1909</idno></series><idno type="istex">C00ED7D9E75F771C3B577E8CB35FE3DA214483E4</idno><idno type="DOI">10.1007/BF00002351</idno><idno type="ArticleID">Art8</idno><idno type="ArticleID">BF00002351</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0378-1909</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acidification</term><term>Fish status</term><term>Lake survey</term><term>Modeling</term><term>Regional assessment</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Acidification</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Synopsis: The number of fish populations affected or lost from small lakes in southern and central Finland due to acid precipitation is estimated. Tolerance limits (pH and labile aluminum) of common fish species were obtained from a fish status survey of 80 lakes. These tolerance values were used to estimate the proportion of affected lakes from the water chemistry data of 783 statistically selected lakes. The proportion of anthropogenically acidified lakes was estimated by calculating pre-acidification pH and aluminum concentrations of the lakes, using a steady-state model based on water chemistry. The number of fish populations for which acidification has affected growth or population structure was estimated at between 2200 and 4400. Out of these, the number of fish populations that have disappeared due to acid precipitation would be about 1000–2000. Almost 60% of the affected or lost populations are roach, Rutilus rutilus, the most sensitive of the common fish species in small lakes in southern and central Finland. Less than 15% of the damaged population is European perch, Perca fluviatilis, the most common species. This is due to the substantially higher tolerance of perch to acidified water in comparison with roach.</div></front></TEI><affiliations><list><country><li>Finlande</li></country><region><li>Päijät-Häme</li></region><settlement><li>Evo (Finlande)</li></settlement><orgName><li>Institut finlandais de recherche sur la chasse et la pêche</li><li>Station de recherche sur la chasse et la pêche d'Evo</li></orgName></list><tree><country name="Finlande"><region name="Päijät-Häme"><name sortKey="Rask, Martti" sort="Rask, Martti" uniqKey="Rask M" first="Martti" last="Rask">Martti Rask</name></region><name sortKey="Forsius, Martin" sort="Forsius, Martin" uniqKey="Forsius M" first="Martin" last="Forsius">Martin Forsius</name><name sortKey="Mannio, Jaakko" sort="Mannio, Jaakko" uniqKey="Mannio J" first="Jaakko" last="Mannio">Jaakko Mannio</name><name sortKey="Posch, Maximilian" sort="Posch, Maximilian" uniqKey="Posch M" first="Maximilian" last="Posch">Maximilian Posch</name><name sortKey="Vuorinen, J" sort="Vuorinen, J" uniqKey="Vuorinen J" first="J." last="Vuorinen">J. Vuorinen</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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