The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish
Abstract – The required freshwater habitats of juvenile Atlantic salmon ( Salmo salar ) are, in general, well known, but vary in quality, related to interacting effects of several variables, which may depend on different parts of a river system. Examples are given of ranges of densities and growth t...
Published in: | Ecology of Freshwater Fish |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1034/j.1600-0633.2002.00022.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0633.2002.00022.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0633.2002.00022.x |
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crwiley:10.1034/j.1600-0633.2002.00022.x 2024-06-02T08:03:33+00:00 The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish Gibson, R. J. 2002 http://dx.doi.org/10.1034/j.1600-0633.2002.00022.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0633.2002.00022.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0633.2002.00022.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 11, issue 4, page 207-222 ISSN 0906-6691 1600-0633 journal-article 2002 crwiley https://doi.org/10.1034/j.1600-0633.2002.00022.x 2024-05-03T11:46:12Z Abstract – The required freshwater habitats of juvenile Atlantic salmon ( Salmo salar ) are, in general, well known, but vary in quality, related to interacting effects of several variables, which may depend on different parts of a river system. Examples are given of ranges of densities and growth that can be found at various sites in eastern Canada, illustrating the biological and physico‐chemical factors affecting production of juvenile salmon. Relative growth rates can indicate habitat quality and population densities. Salmon parr have negative effects on brook trout in riffle habitats. The effects of migrations within the river and of changes with stream succession on juvenile salmon production are illustrated with examples from a Newfoundland river. Migration of age‐classes can be quantified from ‘self‐thinning’ curves. Lakes have enhancing effects on downstream fluvial habitats, and, at least in Newfoundland, and probably in many boreal areas, the lacustrine proportion of the basin can be used as an index for deriving estimates of required spawning escapement. The factors described should be taken into account for more refined estimates of river production and management of the salmon resource. Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Wiley Online Library Canada Ecology of Freshwater Fish 11 4 207 222 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract – The required freshwater habitats of juvenile Atlantic salmon ( Salmo salar ) are, in general, well known, but vary in quality, related to interacting effects of several variables, which may depend on different parts of a river system. Examples are given of ranges of densities and growth that can be found at various sites in eastern Canada, illustrating the biological and physico‐chemical factors affecting production of juvenile salmon. Relative growth rates can indicate habitat quality and population densities. Salmon parr have negative effects on brook trout in riffle habitats. The effects of migrations within the river and of changes with stream succession on juvenile salmon production are illustrated with examples from a Newfoundland river. Migration of age‐classes can be quantified from ‘self‐thinning’ curves. Lakes have enhancing effects on downstream fluvial habitats, and, at least in Newfoundland, and probably in many boreal areas, the lacustrine proportion of the basin can be used as an index for deriving estimates of required spawning escapement. The factors described should be taken into account for more refined estimates of river production and management of the salmon resource. |
format |
Article in Journal/Newspaper |
author |
Gibson, R. J. |
spellingShingle |
Gibson, R. J. The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
author_facet |
Gibson, R. J. |
author_sort |
Gibson, R. J. |
title |
The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
title_short |
The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
title_full |
The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
title_fullStr |
The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
title_full_unstemmed |
The effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile Atlantic salmon ( Salmo salar L.), with consequences on abundance of the adult fish |
title_sort |
effects of fluvial processes and habitat heterogeneity on distribution, growth and densities of juvenile atlantic salmon ( salmo salar l.), with consequences on abundance of the adult fish |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1034/j.1600-0633.2002.00022.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0633.2002.00022.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0633.2002.00022.x |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Ecology of Freshwater Fish volume 11, issue 4, page 207-222 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1034/j.1600-0633.2002.00022.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
11 |
container_issue |
4 |
container_start_page |
207 |
op_container_end_page |
222 |
_version_ |
1800748108930351104 |