Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data
Chinook salmon (Oncorhychus tshawytscha) are an important cultural, commercial, and sport salmon species to the people of Alaska. Recent sharp declines in Chinook salmon returns to Alaska rivers have lead to disaster declarations by the State of Alaska and Federal Government for some communities. Th...
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dataone:10.24431_rw1k46b_2020_8_5_201725 2024-06-03T18:46:41+00:00 Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data Albert Hermann 2015-01-01T00:00:00Z https://search.dataone.org/view/10.24431_rw1k46b_2020_8_5_201725 unknown Research Workspace North Pacific Research Board Chinook salmon forecasts Kuskokwim Marine surival Yukon Dataset 2015 dataone:urn:node:RW 2024-06-03T18:16:39Z Chinook salmon (Oncorhychus tshawytscha) are an important cultural, commercial, and sport salmon species to the people of Alaska. Recent sharp declines in Chinook salmon returns to Alaska rivers have lead to disaster declarations by the State of Alaska and Federal Government for some communities. The question is: “where have all the salmon gone?” The study will examine the early marine ecology of Chinook salmon (a key life history period identified in the State of Alaska and Arctic Yukon Kuskokwim Sustainable Salmon Initiative (AYKSSI), Chinook salmon research plans) along the eastern Bering Sea shelf. The first summer at sea is a critical period for juvenile Chinook salmon where survival is dependent on rapid growth in nearshore habitats and attaining sufficient size and energy reserves before winter. Our goal is to assess the effect of climate change and variability on growth, fitness, and survival of juvenile YK Chinook salmon during these critical periods. This proposal will extend the NPRB/BSIERP integrated ecosystem model to YK Chinook salmon. Inputs to the model and improved model parameterization come from the Bering Aleutian Salmon International Survey (BASIS) conducted during August – October (2002 – 2012). Size-selective mortality for YK Chinook salmon during the critical periods will be determined by comparing time series (1970 – 2012) of size distributions of juveniles from the model to those determined from adult scales (survivors). The mechanisms impacting early marine survival will be determined and tested in forecast models for YK Chinook salmon. Due to their size, the output files from this dataset are not included in this archive but are available from the metadata contact upon request. Dataset Arctic Bering Sea Climate change Kuskokwim Alaska Yukon Research Workspace (via DataONE) Arctic Bering Sea Pacific Yukon |
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North Pacific Research Board Chinook salmon forecasts Kuskokwim Marine surival Yukon |
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North Pacific Research Board Chinook salmon forecasts Kuskokwim Marine surival Yukon Albert Hermann Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
topic_facet |
North Pacific Research Board Chinook salmon forecasts Kuskokwim Marine surival Yukon |
description |
Chinook salmon (Oncorhychus tshawytscha) are an important cultural, commercial, and sport salmon species to the people of Alaska. Recent sharp declines in Chinook salmon returns to Alaska rivers have lead to disaster declarations by the State of Alaska and Federal Government for some communities. The question is: “where have all the salmon gone?” The study will examine the early marine ecology of Chinook salmon (a key life history period identified in the State of Alaska and Arctic Yukon Kuskokwim Sustainable Salmon Initiative (AYKSSI), Chinook salmon research plans) along the eastern Bering Sea shelf. The first summer at sea is a critical period for juvenile Chinook salmon where survival is dependent on rapid growth in nearshore habitats and attaining sufficient size and energy reserves before winter. Our goal is to assess the effect of climate change and variability on growth, fitness, and survival of juvenile YK Chinook salmon during these critical periods. This proposal will extend the NPRB/BSIERP integrated ecosystem model to YK Chinook salmon. Inputs to the model and improved model parameterization come from the Bering Aleutian Salmon International Survey (BASIS) conducted during August – October (2002 – 2012). Size-selective mortality for YK Chinook salmon during the critical periods will be determined by comparing time series (1970 – 2012) of size distributions of juveniles from the model to those determined from adult scales (survivors). The mechanisms impacting early marine survival will be determined and tested in forecast models for YK Chinook salmon. Due to their size, the output files from this dataset are not included in this archive but are available from the metadata contact upon request. |
format |
Dataset |
author |
Albert Hermann |
author_facet |
Albert Hermann |
author_sort |
Albert Hermann |
title |
Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
title_short |
Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
title_full |
Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
title_fullStr |
Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
title_full_unstemmed |
Defining critical periods for Yukon and Kuskokwim river Chinook salmon: biophysical data |
title_sort |
defining critical periods for yukon and kuskokwim river chinook salmon: biophysical data |
publisher |
Research Workspace |
publishDate |
2015 |
url |
https://search.dataone.org/view/10.24431_rw1k46b_2020_8_5_201725 |
geographic |
Arctic Bering Sea Pacific Yukon |
geographic_facet |
Arctic Bering Sea Pacific Yukon |
genre |
Arctic Bering Sea Climate change Kuskokwim Alaska Yukon |
genre_facet |
Arctic Bering Sea Climate change Kuskokwim Alaska Yukon |
_version_ |
1800869828887576576 |