Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar
The catch per unit effort (CPUE) data of brook trout (Salvelinus fontinalis) and Atlantic salmon (Salmo salar) in fyke nets set in two small lakes in central Newfoundland were compared with population densities estimated with Schnabel multiple mark–recapture experiments each spring and fall from 197...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1984
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Online Access: | http://dx.doi.org/10.1139/f84-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-041 |
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crcansciencepubl:10.1139/f84-041 2023-12-17T10:27:08+01:00 Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar Ryan, P. M. 1984 http://dx.doi.org/10.1139/f84-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-041 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 41, issue 2, page 377-380 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1984 crcansciencepubl https://doi.org/10.1139/f84-041 2023-11-19T13:38:37Z The catch per unit effort (CPUE) data of brook trout (Salvelinus fontinalis) and Atlantic salmon (Salmo salar) in fyke nets set in two small lakes in central Newfoundland were compared with population densities estimated with Schnabel multiple mark–recapture experiments each spring and fall from 1978 to 1982. The catchability of brook trout did not differ significantly between lakes or seasons, and CPUE was an index of the relative abundance of trout within and between lakes. In contrast, the catchability of Atlantic salmon differed greatly between lakes and varied seasonally, being greater in the spring but less in the fall than the catchability of brook trout. Comparisons of relative salmon abundance between lakes or of the relative abundance of brook trout to Atlantic salmon within or between lakes require a correction for seasonal differences in the catchability of salmon. Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 41 2 377 380 |
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 Ryan, P. M. Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The catch per unit effort (CPUE) data of brook trout (Salvelinus fontinalis) and Atlantic salmon (Salmo salar) in fyke nets set in two small lakes in central Newfoundland were compared with population densities estimated with Schnabel multiple mark–recapture experiments each spring and fall from 1978 to 1982. The catchability of brook trout did not differ significantly between lakes or seasons, and CPUE was an index of the relative abundance of trout within and between lakes. In contrast, the catchability of Atlantic salmon differed greatly between lakes and varied seasonally, being greater in the spring but less in the fall than the catchability of brook trout. Comparisons of relative salmon abundance between lakes or of the relative abundance of brook trout to Atlantic salmon within or between lakes require a correction for seasonal differences in the catchability of salmon. |
format |
Article in Journal/Newspaper |
author |
Ryan, P. M. |
author_facet |
Ryan, P. M. |
author_sort |
Ryan, P. M. |
title |
Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
title_short |
Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
title_full |
Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
title_fullStr |
Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
title_full_unstemmed |
Fyke Net Catches as Indices of the Abundance of Brook Trout, Salvelinus fontinalis , and Atlantic Salmon, Salmo salar |
title_sort |
fyke net catches as indices of the abundance of brook trout, salvelinus fontinalis , and atlantic salmon, salmo salar |
publisher |
Canadian Science Publishing |
publishDate |
1984 |
url |
http://dx.doi.org/10.1139/f84-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-041 |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 41, issue 2, page 377-380 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f84-041 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
41 |
container_issue |
2 |
container_start_page |
377 |
op_container_end_page |
380 |
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1785578916463771648 |