Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.))
Abstract – Resource partitioning between Atlantic salmon parr, brown trout and Arctic charr was studied throughout the ice‐free season in a north Norwegian lake. Juvenile salmon and trout (≤160 mm) utilized the littoral zone and juvenile charr the profundal, while adult trout and charr (>160...
Published in: | Ecology of Freshwater Fish |
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crwiley:10.1111/j.1600-0633.2000.eff090402.x 2023-12-03T10:15:28+01:00 Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) Jørgensen, L. Halvorsen, M. Amundsen, P.‐A. 2000 http://dx.doi.org/10.1111/j.1600-0633.2000.eff090402.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2000.eff090402.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2000.eff090402.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 9, issue 4, page 202-209 ISSN 0906-6691 1600-0633 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2000 crwiley https://doi.org/10.1111/j.1600-0633.2000.eff090402.x 2023-11-09T14:33:44Z Abstract – Resource partitioning between Atlantic salmon parr, brown trout and Arctic charr was studied throughout the ice‐free season in a north Norwegian lake. Juvenile salmon and trout (≤160 mm) utilized the littoral zone and juvenile charr the profundal, while adult trout and charr (>160 mm) were found in both. Juvenile salmon and trout had a similar diet, although trichopteran larvae were more important for the trout and chironomid pupae and three‐spined sticklebacks for the salmon parr. Small salmon and trout parr (≤120 mm) had a higher diet overlap than larger parr (121–160 mm). The feeding habits of adult trout were similar to that of juvenile trout, but the former took larger prey items. At the population level, both salmon and trout were generalistic feeders with a broad diet, but at the individual level, both species had specialized on a single or a few prey categories. Juvenile charr were segregated from salmon and trout in both habitat and food utilization; they had a narrow diet consisting of chironomids and zooplankton, possibly reflecting their confinement to the profundal habitat which have a low diversity of potential prey. Larger charr also took zoobenthos and sticklebacks in the littoral zone. Note Article in Journal/Newspaper Arctic charr Arctic Atlantic salmon Salmo salar Salvelinus alpinus Zooplankton Wiley Online Library (via Crossref) Arctic Ecology of Freshwater Fish 9 4 202 209 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Jørgensen, L. Halvorsen, M. Amundsen, P.‐A. Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract – Resource partitioning between Atlantic salmon parr, brown trout and Arctic charr was studied throughout the ice‐free season in a north Norwegian lake. Juvenile salmon and trout (≤160 mm) utilized the littoral zone and juvenile charr the profundal, while adult trout and charr (>160 mm) were found in both. Juvenile salmon and trout had a similar diet, although trichopteran larvae were more important for the trout and chironomid pupae and three‐spined sticklebacks for the salmon parr. Small salmon and trout parr (≤120 mm) had a higher diet overlap than larger parr (121–160 mm). The feeding habits of adult trout were similar to that of juvenile trout, but the former took larger prey items. At the population level, both salmon and trout were generalistic feeders with a broad diet, but at the individual level, both species had specialized on a single or a few prey categories. Juvenile charr were segregated from salmon and trout in both habitat and food utilization; they had a narrow diet consisting of chironomids and zooplankton, possibly reflecting their confinement to the profundal habitat which have a low diversity of potential prey. Larger charr also took zoobenthos and sticklebacks in the littoral zone. Note |
format |
Article in Journal/Newspaper |
author |
Jørgensen, L. Halvorsen, M. Amundsen, P.‐A. |
author_facet |
Jørgensen, L. Halvorsen, M. Amundsen, P.‐A. |
author_sort |
Jørgensen, L. |
title |
Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
title_short |
Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
title_full |
Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
title_fullStr |
Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
title_full_unstemmed |
Resource partitioning between lake‐dwelling Atlantic salmon ( Salmo salar L.) parr, brown trout ( Salmo trutta L.) and Arctic charr ( Salvelinus alpinus (L.)) |
title_sort |
resource partitioning between lake‐dwelling atlantic salmon ( salmo salar l.) parr, brown trout ( salmo trutta l.) and arctic charr ( salvelinus alpinus (l.)) |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1600-0633.2000.eff090402.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2000.eff090402.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2000.eff090402.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Atlantic salmon Salmo salar Salvelinus alpinus Zooplankton |
genre_facet |
Arctic charr Arctic Atlantic salmon Salmo salar Salvelinus alpinus Zooplankton |
op_source |
Ecology of Freshwater Fish volume 9, issue 4, page 202-209 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0633.2000.eff090402.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
9 |
container_issue |
4 |
container_start_page |
202 |
op_container_end_page |
209 |
_version_ |
1784262380760334336 |