Temporal variation in Lake Balaton and its fish populations
Identifieur interne : 001278 ( Istex/Corpus ); précédent : 001277; suivant : 001279Temporal variation in Lake Balaton and its fish populations
Auteurs : P. BírSource :
- Ecology of Freshwater Fish [ 0906-6691 ] ; 1997-12.
English descriptors
- KwdEn :
Abstract
Abstract— Dramatic changes have occurred in Lake Balaton in the last 40–45 years. Variations in water quality have resulted in a decrease in fish and invertebrate diversity. Fish assemblages have changed in response to human‐induced eutrophication, environmental perturbations, introduction of exotic fish species, over‐fishing and species‐habitat interactions. Fish biomass and productivity first increased during the early 1970s with enhanced primary production, then decreased with the reduction of exploitation since the late 1970s and induced intra‐ and interspecific competition. Previous stable populations began to oscillate, and the majority of stocks became fragile by the mid‐1980s. Extinction of native fish and invasion of new alien species alternate. Alien species have transformed the food webs, causing long‐lasting ecological changes. Reduced and non‐selective exploitation has resulted in higher fish density and lower production rates. Recent studies have revealed differences in the carrying capacity of fish between the littoral zone and the open water areas.
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DOI: 10.1111/j.1600-0633.1997.tb00163.x
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ISTEX:6FB01EA5C5B6B933B1633EBD34C2B50DE7A21C57Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Temporal variation in Lake Balaton and its fish populations</title><author><name sortKey="Bir, P" sort="Bir, P" uniqKey="Bir P" first="P." last="Bír">P. Bír</name><affiliation><mods:affiliation>Balaton Limnological Research Institute of the Hungarian Academy of Sciences, Tihany, Hungary</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:6FB01EA5C5B6B933B1633EBD34C2B50DE7A21C57</idno><date when="1997" year="1997">1997</date><idno type="doi">10.1111/j.1600-0633.1997.tb00163.x</idno><idno type="url">https://api.istex.fr/document/6FB01EA5C5B6B933B1633EBD34C2B50DE7A21C57/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001278</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Temporal variation in Lake Balaton and its fish populations</title><author><name sortKey="Bir, P" sort="Bir, P" uniqKey="Bir P" first="P." last="Bír">P. Bír</name><affiliation><mods:affiliation>Balaton Limnological Research Institute of the Hungarian Academy of Sciences, Tihany, Hungary</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Ecology of Freshwater Fish</title><idno type="ISSN">0906-6691</idno><idno type="eISSN">1600-0633</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1997-12">1997-12</date><biblScope unit="volume">6</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="196">196</biblScope><biblScope unit="page" to="216">216</biblScope></imprint><idno type="ISSN">0906-6691</idno></series><idno type="istex">6FB01EA5C5B6B933B1633EBD34C2B50DE7A21C57</idno><idno type="DOI">10.1111/j.1600-0633.1997.tb00163.x</idno><idno type="ArticleID">EFF196</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0906-6691</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Lake Balaton</term><term>alien species</term><term>dynamics</term><term>exploitation</term><term>fish population</term><term>human impact</term><term>long‐term change</term><term>production</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract— Dramatic changes have occurred in Lake Balaton in the last 40–45 years. Variations in water quality have resulted in a decrease in fish and invertebrate diversity. Fish assemblages have changed in response to human‐induced eutrophication, environmental perturbations, introduction of exotic fish species, over‐fishing and species‐habitat interactions. Fish biomass and productivity first increased during the early 1970s with enhanced primary production, then decreased with the reduction of exploitation since the late 1970s and induced intra‐ and interspecific competition. Previous stable populations began to oscillate, and the majority of stocks became fragile by the mid‐1980s. Extinction of native fish and invasion of new alien species alternate. Alien species have transformed the food webs, causing long‐lasting ecological changes. Reduced and non‐selective exploitation has resulted in higher fish density and lower production rates. Recent studies have revealed differences in the carrying capacity of fish between the littoral zone and the open water areas.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>P. 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Variations in water quality have resulted in a decrease in fish and invertebrate diversity. Fish assemblages have changed in response to human‐induced eutrophication, environmental perturbations, introduction of exotic fish species, over‐fishing and species‐habitat interactions. Fish biomass and productivity first increased during the early 1970s with enhanced primary production, then decreased with the reduction of exploitation since the late 1970s and induced intra‐ and interspecific competition. Previous stable populations began to oscillate, and the majority of stocks became fragile by the mid‐1980s. Extinction of native fish and invasion of new alien species alternate. Alien species have transformed the food webs, causing long‐lasting ecological changes. Reduced and non‐selective exploitation has resulted in higher fish density and lower production rates. 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Variations in water quality have resulted in a decrease in fish and invertebrate diversity. Fish assemblages have changed in response to human‐induced eutrophication, environmental perturbations, introduction of exotic fish species, over‐fishing and species‐habitat interactions. Fish biomass and productivity first increased during the early 1970s with enhanced primary production, then decreased with the reduction of exploitation since the late 1970s and induced intra‐ and interspecific competition. Previous stable populations began to oscillate, and the majority of stocks became fragile by the mid‐1980s. Extinction of native fish and invasion of new alien species alternate. Alien species have transformed the food webs, causing long‐lasting ecological changes. Reduced and non‐selective exploitation has resulted in higher fish density and lower production rates. 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Variations in water quality have resulted in a decrease in fish and invertebrate diversity. Fish assemblages have changed in response to human‐induced eutrophication, environmental perturbations, introduction of exotic fish species, over‐fishing and species‐habitat interactions. Fish biomass and productivity first increased during the early 1970s with enhanced primary production, then decreased with the reduction of exploitation since the late 1970s and induced intra‐ and interspecific competition. Previous stable populations began to oscillate, and the majority of stocks became fragile by the mid‐1980s. Extinction of native fish and invasion of new alien species alternate. Alien species have transformed the food webs, causing long‐lasting ecological changes. Reduced and non‐selective exploitation has resulted in higher fish density and lower production rates. Recent studies have revealed differences in the carrying capacity of fish between the littoral zone and the open water areas.</abstract><subject lang="en"><genre>Keywords</genre><topic>Lake Balaton</topic><topic>fish population</topic><topic>dynamics</topic><topic>production</topic><topic>long‐term change</topic><topic>human impact</topic><topic>exploitation</topic><topic>alien species</topic></subject><relatedItem type="host"><titleInfo><title>Ecology of Freshwater Fish</title></titleInfo><identifier type="ISSN">0906-6691</identifier><identifier type="eISSN">1600-0633</identifier><identifier type="DOI">10.1111/(ISSN)1600-0633</identifier><identifier type="PublisherID">EFF</identifier><part><date>1997</date><detail type="volume"><caption>vol.</caption><number>6</number></detail><detail type="issue"><caption>no.</caption><number>4</number></detail><extent unit="pages"><start>196</start><end>216</end><total>21</total></extent></part></relatedItem><identifier type="istex">6FB01EA5C5B6B933B1633EBD34C2B50DE7A21C57</identifier><identifier type="DOI">10.1111/j.1600-0633.1997.tb00163.x</identifier><identifier type="ArticleID">EFF196</identifier><recordInfo><recordOrigin>Blackwell Publishing Ltd</recordOrigin><recordContentSource>WILEY</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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