Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway
Abstract The food resource partitioning of Arctic charr ( Salvelinus alpinus L.) and three‐spined stickleback ( Gasterosteus aculeatus L.) were investigated in the littoral zone of lake Takvatn in northern Norway in the ice‐free period June–November. Charr and sticklebacks had different feeding habi...
Published in: | Ecology of Freshwater Fish |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1111/j.1600-0633.1995.tb00120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.1995.tb00120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.1995.tb00120.x |
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crwiley:10.1111/j.1600-0633.1995.tb00120.x 2024-04-14T08:05:46+00:00 Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway Jørgensen, L. Klemetsen, A. 1995 http://dx.doi.org/10.1111/j.1600-0633.1995.tb00120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.1995.tb00120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.1995.tb00120.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 4, issue 2, page 77-84 ISSN 0906-6691 1600-0633 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1995 crwiley https://doi.org/10.1111/j.1600-0633.1995.tb00120.x 2024-03-19T10:57:49Z Abstract The food resource partitioning of Arctic charr ( Salvelinus alpinus L.) and three‐spined stickleback ( Gasterosteus aculeatus L.) were investigated in the littoral zone of lake Takvatn in northern Norway in the ice‐free period June–November. Charr and sticklebacks had different feeding habits. Sticklebacks ate several small benthic prey items that were never eaten by charr, and the sticklebacks' diet were dominated by the benthic microcrustaceans Chydoridae and Ostracoda, chironomid larvae and stickleback eggs. Small charr (<17 cm) consumed a wide spectrum of chironomid pupae, terrestrial insects and zooplankton. Intermediate (17–20 cm) and small charr had quite similar feeding habits, while large charr (>20 cm) frequently ate both benthos, pelagic and terrestrial food. The diet overlap between small charr and sticklebacks was never larger than 0.6 (Schoener's index). The segregation in feeding habits indicates that small charr and sticklebacks are segregated in microhabitat when they are both in the littoral zone. Article in Journal/Newspaper Arctic charr Arctic Northern Norway Salvelinus alpinus Zooplankton Wiley Online Library Arctic Norway Ecology of Freshwater Fish 4 2 77 84 |
institution |
Open Polar |
collection |
Wiley Online Library |
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. Klemetsen, A. Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract The food resource partitioning of Arctic charr ( Salvelinus alpinus L.) and three‐spined stickleback ( Gasterosteus aculeatus L.) were investigated in the littoral zone of lake Takvatn in northern Norway in the ice‐free period June–November. Charr and sticklebacks had different feeding habits. Sticklebacks ate several small benthic prey items that were never eaten by charr, and the sticklebacks' diet were dominated by the benthic microcrustaceans Chydoridae and Ostracoda, chironomid larvae and stickleback eggs. Small charr (<17 cm) consumed a wide spectrum of chironomid pupae, terrestrial insects and zooplankton. Intermediate (17–20 cm) and small charr had quite similar feeding habits, while large charr (>20 cm) frequently ate both benthos, pelagic and terrestrial food. The diet overlap between small charr and sticklebacks was never larger than 0.6 (Schoener's index). The segregation in feeding habits indicates that small charr and sticklebacks are segregated in microhabitat when they are both in the littoral zone. |
format |
Article in Journal/Newspaper |
author |
Jørgensen, L. Klemetsen, A. |
author_facet |
Jørgensen, L. Klemetsen, A. |
author_sort |
Jørgensen, L. |
title |
Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
title_short |
Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
title_full |
Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
title_fullStr |
Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
title_full_unstemmed |
Food resource partitioning of Arctic charr, Salvelinus alpinus (L.) and three‐spined stickleback, Gasterosteus aculeatus L., in the littoral zone of lake Takvatn in northern Norway |
title_sort |
food resource partitioning of arctic charr, salvelinus alpinus (l.) and three‐spined stickleback, gasterosteus aculeatus l., in the littoral zone of lake takvatn in northern norway |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1111/j.1600-0633.1995.tb00120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.1995.tb00120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.1995.tb00120.x |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic charr Arctic Northern Norway Salvelinus alpinus Zooplankton |
genre_facet |
Arctic charr Arctic Northern Norway Salvelinus alpinus Zooplankton |
op_source |
Ecology of Freshwater Fish volume 4, issue 2, page 77-84 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0633.1995.tb00120.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
4 |
container_issue |
2 |
container_start_page |
77 |
op_container_end_page |
84 |
_version_ |
1796302388608368640 |