Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska
Thesis (M.S.) University of Alaska Fairbanks, 1985 The partitioning of habitat and food and the behavioral interactions of young-of-the-year Arctic grayling (Thymallus arcticus), Chinook salmon (Oncorhynchus tshawytscha), and round whitefish (Prosopium cylindraceum) were studied in the laboratory an...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/14767 2023-12-31T10:02:27+01:00 Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska Lee, Kristine M. Reynolds, James B. 1985-09 http://hdl.handle.net/11122/14767 en_US eng http://hdl.handle.net/11122/14767 Department of Biology, Wildlife and Fisheries Arctic grayling Chinook salmon Whitefishes Fish populations Chena River Salmonidae Thesis ms 1985 ftunivalaska 2023-12-07T19:04:37Z Thesis (M.S.) University of Alaska Fairbanks, 1985 The partitioning of habitat and food and the behavioral interactions of young-of-the-year Arctic grayling (Thymallus arcticus), Chinook salmon (Oncorhynchus tshawytscha), and round whitefish (Prosopium cylindraceum) were studied in the laboratory and in their natural habitat. Individuals of all three species defended territories. Arctic grayling were the most aggressive of the three and appear to displace round whitefish from their preferred habitat. In sympatry, there is a segregation of habitat use between Arctic grayling and chinook salmon. Stomach content analysis showed an overlap in diet among the three species. Larvae of the three species emerged at different times and sizes, resulting in a size divergence among coexisting species during their first summer. The three species were found to inhabit faster moving and deeper water as they grew, resulting in a spatial separation of the species and a reduced probability of interactions and competition among them. Alaska Department of Fish and Game, Sport Fish Division Thesis Arctic grayling Arctic Thymallus arcticus Alaska University of Alaska: ScholarWorks@UA |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Arctic grayling Chinook salmon Whitefishes Fish populations Chena River Salmonidae |
spellingShingle |
Arctic grayling Chinook salmon Whitefishes Fish populations Chena River Salmonidae Lee, Kristine M. Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
topic_facet |
Arctic grayling Chinook salmon Whitefishes Fish populations Chena River Salmonidae |
description |
Thesis (M.S.) University of Alaska Fairbanks, 1985 The partitioning of habitat and food and the behavioral interactions of young-of-the-year Arctic grayling (Thymallus arcticus), Chinook salmon (Oncorhynchus tshawytscha), and round whitefish (Prosopium cylindraceum) were studied in the laboratory and in their natural habitat. Individuals of all three species defended territories. Arctic grayling were the most aggressive of the three and appear to displace round whitefish from their preferred habitat. In sympatry, there is a segregation of habitat use between Arctic grayling and chinook salmon. Stomach content analysis showed an overlap in diet among the three species. Larvae of the three species emerged at different times and sizes, resulting in a size divergence among coexisting species during their first summer. The three species were found to inhabit faster moving and deeper water as they grew, resulting in a spatial separation of the species and a reduced probability of interactions and competition among them. Alaska Department of Fish and Game, Sport Fish Division |
author2 |
Reynolds, James B. |
format |
Thesis |
author |
Lee, Kristine M. |
author_facet |
Lee, Kristine M. |
author_sort |
Lee, Kristine M. |
title |
Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
title_short |
Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
title_full |
Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
title_fullStr |
Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
title_full_unstemmed |
Resource partitioning and behavioral interactions among young-of-the-year salmonids, Chena River, Alaska |
title_sort |
resource partitioning and behavioral interactions among young-of-the-year salmonids, chena river, alaska |
publishDate |
1985 |
url |
http://hdl.handle.net/11122/14767 |
genre |
Arctic grayling Arctic Thymallus arcticus Alaska |
genre_facet |
Arctic grayling Arctic Thymallus arcticus Alaska |
op_relation |
http://hdl.handle.net/11122/14767 Department of Biology, Wildlife and Fisheries |
_version_ |
1786811166801002496 |