Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams
Abstract The growth of age‐0 Arctic grayling Thymallus arcticus in two adjacent watersheds with differing numbers of lakes was compared. Age‐0 Arctic grayling grew faster in the watershed with numerous lakes (eight) than in the watershed with only one lake. The presence of lakes along the stream cou...
Published in: | Transactions of the American Fisheries Society |
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crwiley:10.1577/t05-039.1 2024-04-21T07:54:49+00:00 Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams Luecke, Chris MacKinnon, Peter National Science Foundation 2008 http://dx.doi.org/10.1577/t05-039.1 https://onlinelibrary.wiley.com/doi/pdf/10.1577/T05-039.1 https://onlinelibrary.wiley.com/doi/full-xml/10.1577/T05-039.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T05-039.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 137, issue 1, page 236-243 ISSN 0002-8487 1548-8659 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crwiley https://doi.org/10.1577/t05-039.1 2024-03-28T08:26:03Z Abstract The growth of age‐0 Arctic grayling Thymallus arcticus in two adjacent watersheds with differing numbers of lakes was compared. Age‐0 Arctic grayling grew faster in the watershed with numerous lakes (eight) than in the watershed with only one lake. The presence of lakes along the stream courses in both watersheds decreased stream temperatures in the spring but increased temperatures in summer. The size of substrates was greater in streams below lakes than in inlet stream reaches. Growth rates of discrete populations of age‐0 Arctic grayling were positively related to stream temperature. No relationship between fish growth rate and the biomass of invertebrate drift was apparent. We conclude that the summer increase in stream temperatures attributable to the presence of lakes resulted in increased growth of Arctic grayling in the watershed with numerous lakes. A simulation model of the temperature‐dependent growth of age‐0 Arctic grayling indicated that the abundance of lakes in one of the watersheds enhanced the potential production of Arctic grayling almost sixfold. Article in Journal/Newspaper Arctic grayling Arctic Thymallus arcticus Tundra Wiley Online Library Transactions of the American Fisheries Society 137 1 236 243 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Luecke, Chris MacKinnon, Peter Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract The growth of age‐0 Arctic grayling Thymallus arcticus in two adjacent watersheds with differing numbers of lakes was compared. Age‐0 Arctic grayling grew faster in the watershed with numerous lakes (eight) than in the watershed with only one lake. The presence of lakes along the stream courses in both watersheds decreased stream temperatures in the spring but increased temperatures in summer. The size of substrates was greater in streams below lakes than in inlet stream reaches. Growth rates of discrete populations of age‐0 Arctic grayling were positively related to stream temperature. No relationship between fish growth rate and the biomass of invertebrate drift was apparent. We conclude that the summer increase in stream temperatures attributable to the presence of lakes resulted in increased growth of Arctic grayling in the watershed with numerous lakes. A simulation model of the temperature‐dependent growth of age‐0 Arctic grayling indicated that the abundance of lakes in one of the watersheds enhanced the potential production of Arctic grayling almost sixfold. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Luecke, Chris MacKinnon, Peter |
author_facet |
Luecke, Chris MacKinnon, Peter |
author_sort |
Luecke, Chris |
title |
Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
title_short |
Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
title_full |
Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
title_fullStr |
Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
title_full_unstemmed |
Landscape Effects on Growth of Age‐0 Arctic Grayling in Tundra Streams |
title_sort |
landscape effects on growth of age‐0 arctic grayling in tundra streams |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1577/t05-039.1 https://onlinelibrary.wiley.com/doi/pdf/10.1577/T05-039.1 https://onlinelibrary.wiley.com/doi/full-xml/10.1577/T05-039.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T05-039.1 |
genre |
Arctic grayling Arctic Thymallus arcticus Tundra |
genre_facet |
Arctic grayling Arctic Thymallus arcticus Tundra |
op_source |
Transactions of the American Fisheries Society volume 137, issue 1, page 236-243 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1577/t05-039.1 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
137 |
container_issue |
1 |
container_start_page |
236 |
op_container_end_page |
243 |
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1796937198039203840 |