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Natural-origin Chinook Salmon and Steelhead Life History and Genetic Diversity at PIT Tag Detection Locations Throughout the Snake River Basin

John S. HargroveMicah DavisonMatthew Richard Campbell

其他書名	Project Progress Report : 2021 Annual Report
出版	Idaho Department of Fish and Game, 2021
URL	http://books.google.com.hk/books?id=wTauzgEACAAJ&hl=&source=gbs_api

註釋This report summarizes life history and genetic diversity information for wild adult steelhead and spring/summer Chinook Salmon sampled at Lower Granite Dam and later detected in a Distinct Population Segment (DPS) or Evolutionarily Significant Unit (ESU) population in the Snake River basin for the 01/01/2020 to 12/31/2020 reporting period. This reporting period covers analysis of individuals crossing Lower Granite Dam in spawn year (SY) 2020. A total of 2,301 steelhead but no Chinook Salmon were sampled at Lower Granite Dam and 1,138 steelhead were subsequently identified at PIT tag detection locations in the Snake River basin. Panels of up to 379 SNPs were genotyped at both Idaho Department of Fish and Game's Eagle Fish Genetics Lab and the Columbia River Inter-Tribal Fish Commission's Hagerman Genetics Lab, to assign these fish to hatchery parents or wild genetic stocks. We describe the life history variation and genetic diversity of steelhead detected in Snake River populations for SY2020. The information presented in this report provides critical data for viable Salmonid population monitoring of the Snake River steelhead DPS and the Snake River spring/summer Chinook Salmon ESU.