Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams
Hatchery-reared Atlantic salmon (Salmo salar) parr were captured 1–3 mo after release in streams, along with wild parr from the same streams. Identification of their stomach contents showed total number of organisms and number of taxa per stomach were greater and there was a higher index of stomach...
Published in: | Journal of the Fisheries Research Board of Canada |
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Canadian Science Publishing
1979
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Online Access: | http://dx.doi.org/10.1139/f79-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-202 |
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crcansciencepubl:10.1139/f79-202 2023-12-17T10:27:14+01:00 Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams Sosiak, A. J. Randall, R. G. McKenzie, J. A. 1979 http://dx.doi.org/10.1139/f79-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-202 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 36, issue 11, page 1408-1412 ISSN 0015-296X General Medicine journal-article 1979 crcansciencepubl https://doi.org/10.1139/f79-202 2023-11-19T13:39:17Z Hatchery-reared Atlantic salmon (Salmo salar) parr were captured 1–3 mo after release in streams, along with wild parr from the same streams. Identification of their stomach contents showed total number of organisms and number of taxa per stomach were greater and there was a higher index of stomach fullness in wild than in hatchery parr resident ≤ 2 mo in a stream. Wild parr consumed more Brachycentridae, Hydroptilidae, Diptera, and Plecoptera than did hatchery parr, but sometimes less Odontoceridae and Heptageniidae. These differences may have arisen from size-dependent food selection, the effects of feeding experience, or possible microhabitat differences between wild and hatchery parr. Key words: salmon parr, hatchery-reared, wild, feeding Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 36 11 1408 1412 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Sosiak, A. J. Randall, R. G. McKenzie, J. A. Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
topic_facet |
General Medicine |
description |
Hatchery-reared Atlantic salmon (Salmo salar) parr were captured 1–3 mo after release in streams, along with wild parr from the same streams. Identification of their stomach contents showed total number of organisms and number of taxa per stomach were greater and there was a higher index of stomach fullness in wild than in hatchery parr resident ≤ 2 mo in a stream. Wild parr consumed more Brachycentridae, Hydroptilidae, Diptera, and Plecoptera than did hatchery parr, but sometimes less Odontoceridae and Heptageniidae. These differences may have arisen from size-dependent food selection, the effects of feeding experience, or possible microhabitat differences between wild and hatchery parr. Key words: salmon parr, hatchery-reared, wild, feeding |
format |
Article in Journal/Newspaper |
author |
Sosiak, A. J. Randall, R. G. McKenzie, J. A. |
author_facet |
Sosiak, A. J. Randall, R. G. McKenzie, J. A. |
author_sort |
Sosiak, A. J. |
title |
Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
title_short |
Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
title_full |
Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
title_fullStr |
Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
title_full_unstemmed |
Feeding by Hatchery-Reared and Wild Atlantic Salmon ( Salmo salar ) Parr in Streams |
title_sort |
feeding by hatchery-reared and wild atlantic salmon ( salmo salar ) parr in streams |
publisher |
Canadian Science Publishing |
publishDate |
1979 |
url |
http://dx.doi.org/10.1139/f79-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-202 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of the Fisheries Research Board of Canada volume 36, issue 11, page 1408-1412 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f79-202 |
container_title |
Journal of the Fisheries Research Board of Canada |
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36 |
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11 |
container_start_page |
1408 |
op_container_end_page |
1412 |
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1785579036931522560 |