Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing
Organisms transporting nutrients from highly productive ecosystems can subsidize food webs and alter ecosystem processes. For example, the carcasses and eggs of migratory Pacific salmon ( Oncorhynchus spp.) provide a high‐quality food source that could potentially benefit other species of salmon rea...
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crwiley:10.1890/es14-00162.1 2023-12-03T10:29:10+01:00 Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing Nelson, Michelle C. Reynolds, John D. 2015 http://dx.doi.org/10.1890/es14-00162.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1890%2FES14-00162.1 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1890/ES14-00162.1 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Ecosphere volume 6, issue 10, page 1-14 ISSN 2150-8925 2150-8925 Ecology Ecology, Evolution, Behavior and Systematics journal-article 2015 crwiley https://doi.org/10.1890/es14-00162.1 2023-11-09T14:24:13Z Organisms transporting nutrients from highly productive ecosystems can subsidize food webs and alter ecosystem processes. For example, the carcasses and eggs of migratory Pacific salmon ( Oncorhynchus spp.) provide a high‐quality food source that could potentially benefit other species of salmon rearing in fresh water. We investigated relationships between spawning chum ( O. keta ) and pink ( O. gorbuscha ) salmon density, and the body size and age of juvenile coho salmon ( O. kisutch ) in 17 streams on the central coast of British Columbia, Canada. Chum salmon density was the most consistently important and positive correlate of coho body size, in comparison with pink salmon density, juvenile coho salmon density, and numerous characteristics of habitats. This was shown by comparisons both among and within streams, and between sites above and below natural barriers to spawning chum and pink salmon. In addition, streams that had higher chum and pink salmon spawning densities had a higher proportion of age 0 coho (less age 1), suggesting earlier juvenile coho salmon migration to the ocean with increased spawning salmon nutrient availability. Most of the coho salmon sampled had little or no direct contact with spawning chum and pink salmon, which suggests an indirect, time‐delayed influence on coho salmon body size. Article in Journal/Newspaper Pink salmon Wiley Online Library (via Crossref) British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Ecosphere 6 10 art209 art209 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Ecology, Evolution, Behavior and Systematics Nelson, Michelle C. Reynolds, John D. Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Organisms transporting nutrients from highly productive ecosystems can subsidize food webs and alter ecosystem processes. For example, the carcasses and eggs of migratory Pacific salmon ( Oncorhynchus spp.) provide a high‐quality food source that could potentially benefit other species of salmon rearing in fresh water. We investigated relationships between spawning chum ( O. keta ) and pink ( O. gorbuscha ) salmon density, and the body size and age of juvenile coho salmon ( O. kisutch ) in 17 streams on the central coast of British Columbia, Canada. Chum salmon density was the most consistently important and positive correlate of coho body size, in comparison with pink salmon density, juvenile coho salmon density, and numerous characteristics of habitats. This was shown by comparisons both among and within streams, and between sites above and below natural barriers to spawning chum and pink salmon. In addition, streams that had higher chum and pink salmon spawning densities had a higher proportion of age 0 coho (less age 1), suggesting earlier juvenile coho salmon migration to the ocean with increased spawning salmon nutrient availability. Most of the coho salmon sampled had little or no direct contact with spawning chum and pink salmon, which suggests an indirect, time‐delayed influence on coho salmon body size. |
format |
Article in Journal/Newspaper |
author |
Nelson, Michelle C. Reynolds, John D. |
author_facet |
Nelson, Michelle C. Reynolds, John D. |
author_sort |
Nelson, Michelle C. |
title |
Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
title_short |
Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
title_full |
Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
title_fullStr |
Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
title_full_unstemmed |
Effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
title_sort |
effects of subsidies from spawning chum and pink salmon on juvenile coho salmon body size and migration timing |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1890/es14-00162.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1890%2FES14-00162.1 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1890/ES14-00162.1 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
British Columbia Canada Keta Pacific |
geographic_facet |
British Columbia Canada Keta Pacific |
genre |
Pink salmon |
genre_facet |
Pink salmon |
op_source |
Ecosphere volume 6, issue 10, page 1-14 ISSN 2150-8925 2150-8925 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1890/es14-00162.1 |
container_title |
Ecosphere |
container_volume |
6 |
container_issue |
10 |
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art209 |
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art209 |
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1784254330620084224 |