Landscape effects on growth of age-0 arctic grayling in tundra streams
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 b...
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ftutahsudc:oai:digitalcommons.usu.edu:wats_facpub-1223 2023-05-15T14:31:16+02:00 Landscape effects on growth of age-0 arctic grayling in tundra streams Luecke, Chris MacKinnon, P. 2008-01-01T08:00:00Z https://digitalcommons.usu.edu/wats_facpub/224 unknown Hosted by Utah State University Libraries https://digitalcommons.usu.edu/wats_facpub/224 Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. PDM Watershed Sciences Faculty Publications landscape age-0 arctic grayling Aquaculture and Fisheries Environmental Sciences Fresh Water Studies text 2008 ftutahsudc 2022-08-11T17:19:37Z 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. Text Arctic grayling Arctic Thymallus arcticus Tundra Utah State University: DigitalCommons@USU Arctic |
institution |
Open Polar |
collection |
Utah State University: DigitalCommons@USU |
op_collection_id |
ftutahsudc |
language |
unknown |
topic |
landscape age-0 arctic grayling Aquaculture and Fisheries Environmental Sciences Fresh Water Studies |
spellingShingle |
landscape age-0 arctic grayling Aquaculture and Fisheries Environmental Sciences Fresh Water Studies Luecke, Chris MacKinnon, P. Landscape effects on growth of age-0 arctic grayling in tundra streams |
topic_facet |
landscape age-0 arctic grayling Aquaculture and Fisheries Environmental Sciences Fresh Water Studies |
description |
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. |
format |
Text |
author |
Luecke, Chris MacKinnon, P. |
author_facet |
Luecke, Chris MacKinnon, P. |
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 |
Hosted by Utah State University Libraries |
publishDate |
2008 |
url |
https://digitalcommons.usu.edu/wats_facpub/224 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic grayling Arctic Thymallus arcticus Tundra |
genre_facet |
Arctic grayling Arctic Thymallus arcticus Tundra |
op_source |
Watershed Sciences Faculty Publications |
op_relation |
https://digitalcommons.usu.edu/wats_facpub/224 |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. |
op_rightsnorm |
PDM |
_version_ |
1766304940239618048 |