Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes
Diphyllobothrium ditremum (Cestoda: Pseudophyllidea) transmission to arctic char (Salvelinus alpinus) was investigated at two small (<10 ha) lakes in northern Quebec, where the char populations exhibit a marked difference in plerocercoid prevalence (78 vs. 18%) and abundance (27.7 vs. 1.2 ple...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1986
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Online Access: | http://dx.doi.org/10.1139/f86-201 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-201 |
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crcansciencepubl:10.1139/f86-201 2023-12-17T10:25:09+01:00 Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes Bérubé, Michel Curtis, Mark A. 1986 http://dx.doi.org/10.1139/f86-201 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-201 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 43, issue 8, page 1626-1634 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1986 crcansciencepubl https://doi.org/10.1139/f86-201 2023-11-19T13:39:12Z Diphyllobothrium ditremum (Cestoda: Pseudophyllidea) transmission to arctic char (Salvelinus alpinus) was investigated at two small (<10 ha) lakes in northern Quebec, where the char populations exhibit a marked difference in plerocercoid prevalence (78 vs. 18%) and abundance (27.7 vs. 1.2 plerocercoids/fish). The highly infected char population was characterized by slow growth and poor feeding conditions. Feeding behavior of char in the two lakes differed principally in the fall, when consumption of benthos significantly decreased in the highly infected population as char fed more on copepods or sticklebacks (Gasterosteus aculeatus). Presence of these two food items in char stomachs was associated with high abundance of D. ditremum. The availability of alternative foods, such as larval insects and amphipods, appears to prevent char from acquiring heavy infections of D. ditremum, even in circumstances where all potential hosts are present. Article in Journal/Newspaper Arctic Salvelinus alpinus Subarctic Copepods Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Fisheries and Aquatic Sciences 43 8 1626 1634 |
institution |
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 Bérubé, Michel Curtis, Mark A. Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Diphyllobothrium ditremum (Cestoda: Pseudophyllidea) transmission to arctic char (Salvelinus alpinus) was investigated at two small (<10 ha) lakes in northern Quebec, where the char populations exhibit a marked difference in plerocercoid prevalence (78 vs. 18%) and abundance (27.7 vs. 1.2 plerocercoids/fish). The highly infected char population was characterized by slow growth and poor feeding conditions. Feeding behavior of char in the two lakes differed principally in the fall, when consumption of benthos significantly decreased in the highly infected population as char fed more on copepods or sticklebacks (Gasterosteus aculeatus). Presence of these two food items in char stomachs was associated with high abundance of D. ditremum. The availability of alternative foods, such as larval insects and amphipods, appears to prevent char from acquiring heavy infections of D. ditremum, even in circumstances where all potential hosts are present. |
format |
Article in Journal/Newspaper |
author |
Bérubé, Michel Curtis, Mark A. |
author_facet |
Bérubé, Michel Curtis, Mark A. |
author_sort |
Bérubé, Michel |
title |
Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
title_short |
Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
title_full |
Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
title_fullStr |
Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
title_full_unstemmed |
Transmission of Diphyllobothrium ditremum to Arctic Char ( Salvelinus alpinus ) in Two Subarctic Quebec lakes |
title_sort |
transmission of diphyllobothrium ditremum to arctic char ( salvelinus alpinus ) in two subarctic quebec lakes |
publisher |
Canadian Science Publishing |
publishDate |
1986 |
url |
http://dx.doi.org/10.1139/f86-201 http://www.nrcresearchpress.com/doi/pdf/10.1139/f86-201 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus Subarctic Copepods |
genre_facet |
Arctic Salvelinus alpinus Subarctic Copepods |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 43, issue 8, page 1626-1634 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f86-201 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
43 |
container_issue |
8 |
container_start_page |
1626 |
op_container_end_page |
1634 |
_version_ |
1785573762473656320 |