Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus )
Analyses of statistical associations between the stomach contents and endoparasites of Arctic char, Salvelinus alpinus, from a small (9 ha) lake in northern Quebec revealed that food items found in fish stomachs at the time of capture frequently consisted of intermediate hosts for the parasites infe...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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1995
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Online Access: | http://dx.doi.org/10.1139/f95-526 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-526 |
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crcansciencepubl:10.1139/f95-526 2023-12-17T10:24:17+01:00 Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) Curtis, Mark A. Bérubé, Michel Stenzel, Andreas 1995 http://dx.doi.org/10.1139/f95-526 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-526 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue S1, page 186-194 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1995 crcansciencepubl https://doi.org/10.1139/f95-526 2023-11-19T13:38:56Z Analyses of statistical associations between the stomach contents and endoparasites of Arctic char, Salvelinus alpinus, from a small (9 ha) lake in northern Quebec revealed that food items found in fish stomachs at the time of capture frequently consisted of intermediate hosts for the parasites infecting the fish. Thus the stomach contents of Arctic char infected by Diphyllobothrium ditremum, D. dendriticum, and Eubothrium salvelini tended to include copepods, while fish infected by the digenean Crepidostomum farionis more frequently contained insect larvae (ephemeropterans) and fish infected by the acanthocephalan Echinorhynchus lateralis most often had amphipods in their stomachs. Moreover, strong quantitative associations were evident between parasites utilizing intermediate hosts from either the benthic or the limnetic zone of the lake. This suggests that some degree of persistent feeding specialization was present among members of the Arctic char population over an extended period of time, with individual fish predominantly feeding upon prey organisms in either limnetic or benthic habitats. In this manner an allopatric Arctic char population may function analogously to more diverse fish communities, where specialist foraging behavior is developed to most efficiently exploit the food web. Article in Journal/Newspaper Arctic Salvelinus alpinus Copepods Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Fisheries and Aquatic Sciences 52 S1 186 194 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Curtis, Mark A. Bérubé, Michel Stenzel, Andreas Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Analyses of statistical associations between the stomach contents and endoparasites of Arctic char, Salvelinus alpinus, from a small (9 ha) lake in northern Quebec revealed that food items found in fish stomachs at the time of capture frequently consisted of intermediate hosts for the parasites infecting the fish. Thus the stomach contents of Arctic char infected by Diphyllobothrium ditremum, D. dendriticum, and Eubothrium salvelini tended to include copepods, while fish infected by the digenean Crepidostomum farionis more frequently contained insect larvae (ephemeropterans) and fish infected by the acanthocephalan Echinorhynchus lateralis most often had amphipods in their stomachs. Moreover, strong quantitative associations were evident between parasites utilizing intermediate hosts from either the benthic or the limnetic zone of the lake. This suggests that some degree of persistent feeding specialization was present among members of the Arctic char population over an extended period of time, with individual fish predominantly feeding upon prey organisms in either limnetic or benthic habitats. In this manner an allopatric Arctic char population may function analogously to more diverse fish communities, where specialist foraging behavior is developed to most efficiently exploit the food web. |
format |
Article in Journal/Newspaper |
author |
Curtis, Mark A. Bérubé, Michel Stenzel, Andreas |
author_facet |
Curtis, Mark A. Bérubé, Michel Stenzel, Andreas |
author_sort |
Curtis, Mark A. |
title |
Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
title_short |
Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
title_full |
Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
title_fullStr |
Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
title_full_unstemmed |
Parasitological evidence for specialized foraging behavior in lake-resident Arctic char ( Salvelinus alpinus ) |
title_sort |
parasitological evidence for specialized foraging behavior in lake-resident arctic char ( salvelinus alpinus ) |
publisher |
Canadian Science Publishing |
publishDate |
1995 |
url |
http://dx.doi.org/10.1139/f95-526 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-526 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus Copepods |
genre_facet |
Arctic Salvelinus alpinus Copepods |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue S1, page 186-194 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f95-526 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
52 |
container_issue |
S1 |
container_start_page |
186 |
op_container_end_page |
194 |
_version_ |
1785564824431755264 |