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Wild Adult Steelhead And Chinook Salmon Abundance And Composition At Lower Granite Dam Spawn Year 2018
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Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2018 by : Carlos A. Camacho
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2018 written by Carlos A. Camacho and published by . This book was released on 2019 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2019 by : Katherine M. Lawry
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2019 written by Katherine M. Lawry and published by . This book was released on 2020 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Chapter 2] Little population-specific data was available for Snake River steelhead, especially for Idaho populations, during the ESA listing process and previous status assessments. Status and viability were primarily based on counts of adipose-intact steelhead at Lower Granite Dam. Instead of population identity, steelhead were split into two length groups. This chapter reviews the recent data series and updates the reconstruction of Idaho steelhead populations before formal sampling began at Lower Granite Dam in spawn year 2019. The reconstructed estimates provide the best available means to connect present status of Idaho steelhead stocks to status at the time of ESA listing.
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2021 by : Carli M. Baum
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2021 written by Carli M. Baum and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the abundance and composition of wild adult steelhead Oncorhynchus mykiss and spring-summer Chinook Salmon O. tshawytscha returning to Lower Granite Dam in spawn year 2021.
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2010 by :
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2010 written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2011 by : William Cecil Schrader
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2011 written by William Cecil Schrader and published by . This book was released on 2013 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2017 by : Carlos A. Camacho
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2017 written by Carlos A. Camacho and published by . This book was released on 2018 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2010 by : William Cecil Schrader
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2010 written by William Cecil Schrader and published by . This book was released on 2012 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2012 by :
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2012 written by and published by . This book was released on 2014 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2020 by : Carli M. Baum
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2020 written by Carli M. Baum and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Years 2009-2016 by : Carlos A. Camacho
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Years 2009-2016 written by Carlos A. Camacho and published by . This book was released on 2017 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2011 by :
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2011 written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2009 by : William Cecil Schrader
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2009 written by William Cecil Schrader and published by . This book was released on 2011 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2022 by : Carli M. Baum
Download or read book Wild Adult Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Spawn Year 2022 written by Carli M. Baum and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the abundance and composition of wild adult summer steelhead Oncorhynchus mykiss and spring-summer Chinook Salmon O. tshawytscha returning to Lower Granite Dam in spawn year (SY) 2022. We used a combination of window counts, night time passage rates, fallback-reascension rates, and biological samples collected using a systematic random sample design from the fish trap at Lower Granite Dam to decompose each species by origin, body size, sex, age, and stock. The time series of abundance and composition was then used to calculate adult-to-adult productivity, expressed as recruits per spawner, and smolt-to-adult return rate for each species.
Book Synopsis Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Year 2018 by : Carlos A. Camacho
Download or read book Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Year 2018 written by Carlos A. Camacho and published by . This book was released on 2019 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Years 2010-2017 by : Carlos A. Camacho
Download or read book Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Years 2010-2017 written by Carlos A. Camacho and published by . This book was released on 2018 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite DAm, Migratory Years 2010 and 2011 by : Timothy Copeland
Download or read book Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite DAm, Migratory Years 2010 and 2011 written by Timothy Copeland and published by . This book was released on 2013 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Year 2019 by : Jonathan D. Ebel
Download or read book Wild Juvenile Steelhead and Chinook Salmon Abundance and Composition at Lower Granite Dam, Migratory Year 2019 written by Jonathan D. Ebel and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the abundance, composition, and productivity of wild juvenile steelhead and yearling spring-summer Chinook Salmon emigrating past Lower Granite Dam, migratory year 2019. We used systematic biological samples from the Juvenile Fish Facility to decompose each species by origin, age, sex, and genetic stock. Juvenile and returning adult data from Lower Granite Dam were combined to calculate adult-to-juvenile productivity for the aggregate populations of Snake River summer steelhead and Snake River spring-summer Chinook Salmon. Estimated wild steelhead emigration was 845,815 smolts. The Grande Ronde River genetic stock had the highest relative abundance (29%) followed by the upper Salmon River (15%). Sex ratios were female biased at 64% for the aggregate juvenile emigration. Juvenile ages ranged from age-1 to age-4 with the majority of emigrants comprised of age-2 and age-3 smolts. Migratory year 2019 completed emigration for brood year 2014. The aggregate productivity of brood year 2014 was 32 juveniles per female parent that returned to Lower Granite Dam. Brood year 2015 is nearly completed and productivity is tentatively 17 smolts per female parent. Estimated wild Chinook Salmon emigration was 794,695 yearling smolts. The Hells Canyon genetic stock had the highest relative abundance (37%) followed by the South Fork Salmon River (22%). Sex ratios were female biased at 57% for the aggregate juvenile emigration. Migratory year 2019 completed emigration for brood year 2017. The aggregate productivity of brood year 2017 was 94 yearling smolts per female parent that returned to Lower Granite Dam. Based on a Beverton-Holt stock-recruit model, aggregate intrinsic productivity was 445.2 yearling smolts per female parent and asymptotic production was 1,400,440 yearling smolts. For BY2018, the model predicted production of 1,419,649 yearling smolts, implying productivity should be 460 wild yearling smolts per female.
