Consequence of habitat segregation to growth rate of two sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in a subarctic lake
Identifieur interne : 000A88 ( Main/Exploration ); précédent : 000A87; suivant : 000A89Consequence of habitat segregation to growth rate of two sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in a subarctic lake
Auteurs : Kimmo Kahilainen [Finlande] ; H. Lehtonen [Finlande] ; K. Könönen [Finlande]Source :
- Ecology of Freshwater Fish [ 0906-6691 ] ; 2003-12.
English descriptors
- KwdEn :
Abstract
Abstract – The aim of this study was to explain the growth differences of the two sympatric sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi by comparing their habitat and food selection to available benthic food resources. The average number of gillrakers was 22.9 for large sparsely rakered whitefish (LSR) and 16.8 for small sparsely rakered whitefish (SSR). LSR dwelled primarily in the littoral zone at depths < 10 m, whereas SSR used mostly profundal habitats in depths > 10 m. LSR and SSR consumed mainly benthic macroinvertebrates, their abundance, biomass and diversity was highest in the littoral, decreasing towards the profundal. As the individual size of fish increased, LSR was able to shift to larger food items, which were available in the littoral. Possibility of SSR to ontogenetic food shift was scarce in the profundal, where availability of larger benthic macroinvertebrates was low. Because of abundant food resources in the littoral, growth rate of LSR was faster than that of SSR.
Url:
DOI: 10.1046/j.1600-0633.2003.00029.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000573
- to stream Istex, to step Curation: 000573
- to stream Istex, to step Checkpoint: 000700
- to stream Main, to step Merge: 000B17
- to stream Main, to step Curation: 000A88
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Consequence of habitat segregation to growth rate of two sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in a subarctic lake</title><author><name sortKey="Kahilainen, K" sort="Kahilainen, K" uniqKey="Kahilainen K" first="K." last="Kahilainen">Kimmo Kahilainen</name><affiliation><country>Finlande</country><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></affiliation></author><author><name sortKey="Lehtonen, H" sort="Lehtonen, H" uniqKey="Lehtonen H" first="H." last="Lehtonen">H. Lehtonen</name></author><author><name sortKey="Kononen, K" sort="Kononen, K" uniqKey="Kononen K" first="K." last="Könönen">K. Könönen</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:069715A083C672FDF4E148536651E9B410A7160A</idno><date when="2003" year="2003">2003</date><idno type="doi">10.1046/j.1600-0633.2003.00029.x</idno><idno type="url">https://api.istex.fr/document/069715A083C672FDF4E148536651E9B410A7160A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000573</idno><idno type="wicri:Area/Istex/Curation">000573</idno><idno type="wicri:Area/Istex/Checkpoint">000700</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000700</idno><idno type="wicri:doubleKey">0906-6691:2003:Kahilainen K:consequence:of:habitat</idno><idno type="wicri:Area/Main/Merge">000B17</idno><idno type="wicri:Area/Main/Curation">000A88</idno><idno type="wicri:Area/Main/Exploration">000A88</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Consequence of habitat segregation to growth rate of two sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in a subarctic lake</title><author><name sortKey="Kahilainen, K" sort="Kahilainen, K" uniqKey="Kahilainen K" first="K." last="Kahilainen">Kimmo Kahilainen</name><affiliation wicri:level="4"><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Limnology and Environmental Protection, University of Helsinki</wicri:regionArea><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></affiliation></author><author><name sortKey="Lehtonen, H" sort="Lehtonen, H" uniqKey="Lehtonen H" first="H." last="Lehtonen">H. Lehtonen</name><affiliation wicri:level="4"><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Limnology and Environmental Protection, University of Helsinki</wicri:regionArea><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></affiliation></author><author><name sortKey="Kononen, K" sort="Kononen, K" uniqKey="Kononen K" first="K." last="Könönen">K. Könönen</name><affiliation wicri:level="4"><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Limnology and Environmental Protection, University of Helsinki</wicri:regionArea><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></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 Science, Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2003-12">2003-12</date><biblScope unit="volume">12</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="275">275</biblScope><biblScope unit="page" to="285">285</biblScope></imprint><idno type="ISSN">0906-6691</idno></series><idno type="istex">069715A083C672FDF4E148536651E9B410A7160A</idno><idno type="DOI">10.1046/j.1600-0633.2003.00029.x</idno><idno type="ArticleID">EFF029</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0906-6691</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>benthic macroinvertebrates</term><term>diet</term><term>growth</term><term>habitat</term><term>whitefish</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract – The aim of this study was to explain the growth differences of the two sympatric sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi by comparing their habitat and food selection to available benthic food resources. The average number of gillrakers was 22.9 for large sparsely rakered whitefish (LSR) and 16.8 for small sparsely rakered whitefish (SSR). LSR dwelled primarily in the littoral zone at depths < 10 m, whereas SSR used mostly profundal habitats in depths > 10 m. LSR and SSR consumed mainly benthic macroinvertebrates, their abundance, biomass and diversity was highest in the littoral, decreasing towards the profundal. As the individual size of fish increased, LSR was able to shift to larger food items, which were available in the littoral. Possibility of SSR to ontogenetic food shift was scarce in the profundal, where availability of larger benthic macroinvertebrates was low. Because of abundant food resources in the littoral, growth rate of LSR was faster than that of SSR.</div></front></TEI><affiliations><list><country><li>Finlande</li></country><region><li>Uusimaa</li></region><settlement><li>Helsinki</li></settlement><orgName><li>Université d'Helsinki</li></orgName></list><tree><country name="Finlande"><region name="Uusimaa"><name sortKey="Kahilainen, K" sort="Kahilainen, K" uniqKey="Kahilainen K" first="K." last="Kahilainen">Kimmo Kahilainen</name></region><name sortKey="Kononen, K" sort="Kononen, K" uniqKey="Kononen K" first="K." last="Könönen">K. Könönen</name><name sortKey="Lehtonen, H" sort="Lehtonen, H" uniqKey="Lehtonen H" first="H." last="Lehtonen">H. Lehtonen</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 000A88 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000A88 | 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:069715A083C672FDF4E148536651E9B410A7160A
|texte= Consequence of habitat segregation to growth rate of two sparsely rakered whitefish (Coregonus lavaretus (L.)) forms in a subarctic lake
}}
| This area was generated with Dilib version V0.6.39. |  |