LotaV3, Main, Exploration, bibRecord, 000B45

Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) as predators on three sympatric whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi

Identifieur interne : 000B45 ( Main/Exploration ); précédent : 000B44; suivant : 000B46

Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) as predators on three sympatric whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi

Auteurs : Kimmo Kahilainen [Finlande] ; H. Lehtonen [Finlande]

Source :

Ecology of Freshwater Fish [ 0906-6691 ] ; 2002-09.

RBID : ISTEX:1601A446082FE0F7A38AFB8951C713C35FF89214

English descriptors

KwdEn :
- Arctic charr, brown trout, habitat, predation, whitefish.

Abstract

Abstract – Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) use whitefish (Coregonus lavaretus (L.)) as their main prey in the subarctic Lake Muddusjärvi. Brown trout dwelled in littoral and pelagic habitat, whereas Arctic charr lived only in epibenthic habitat. Both species shifted to whitefish predation at a length of 20–30 cm. At this size, brown trout fed on larger whitefish than Arctic charr. Whitefish occur in three sympatric forms, differing in their habitat, ecology and morphology. Both the predators preyed primarily upon the small‐sized, densely rakered whitefish form (DR), which was the most numerous whitefish form in the lake. DR used both epibenthic and pelagic habitat, whereas two sparsely rakered whitefish forms dwelled (LSR and SSR) only in epibenthic habitat: LSR in littoral and SSR in profundal areas. Sparsely rakered whitefish forms had minor importance in predator diet.

Url:

https://api.istex.fr/document/1601A446082FE0F7A38AFB8951C713C35FF89214/fulltext/pdf

DOI: 10.1034/j.1600-0633.2002.t01-2-00001.x

Affiliations:

Links toward previous steps (curation, corpus...)

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to stream Istex, to step Curation: 000757
to stream Istex, to step Checkpoint: 000739
to stream Main, to step Merge: 000B81
to stream Main, to step Curation: 000B45

Le document en format XML

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<author><name sortKey="Kahilainen, K" sort="Kahilainen, K" uniqKey="Kahilainen K" first="K." last="Kahilainen">Kimmo Kahilainen</name>
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<front><div type="abstract" xml:lang="en">Abstract  – Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) use whitefish (Coregonus lavaretus (L.)) as their main prey in the subarctic Lake Muddusjärvi. Brown trout dwelled in littoral and pelagic habitat, whereas Arctic charr lived only in epibenthic habitat. Both species shifted to whitefish predation at a length of 20–30 cm. At this size, brown trout fed on larger whitefish than Arctic charr. Whitefish occur in three sympatric forms, differing in their habitat, ecology and morphology. Both the predators preyed primarily upon the small‐sized, densely rakered whitefish form (DR), which was the most numerous whitefish form in the lake. DR used both epibenthic and pelagic habitat, whereas two sparsely rakered whitefish forms dwelled (LSR and SSR) only in epibenthic habitat: LSR in littoral and SSR in profundal areas. Sparsely rakered whitefish forms had minor importance in predator diet.</div>
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Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) as predators on three sympatric whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi

Brown trout (Salmo trutta L.) and Arctic charr (Salvelinus alpinus (L.)) as predators on three sympatric whitefish (Coregonus lavaretus (L.)) forms in the subarctic Lake Muddusjärvi

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri