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Potlatch River Steelhead Monitoring And Evaluation Project
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Book Synopsis Potlatch River Steelhead Monitoring and Evaluation Project by : Brian Anthony Knoth
Download or read book Potlatch River Steelhead Monitoring and Evaluation Project written by Brian Anthony Knoth and published by . This book was released on 2021 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Potlatch River Steelhead Monitoring and Evaluation project operates weirs, instream PIT-tag detection systems, and rotary screw traps to monitor the annual abundance and life history characteristics of wild steelhead Oncorhynchus mykiss in two index watersheds, Big Bear Creek (BBC) and the East Fork Potlatch River (EFPR). In 2017 and 2018, adult steelhead escapement was below long-term averages in both watersheds and ranged from 8-19 fish in BBC and 11-18 fish in EFPR. The majority of adult steelhead in 2017 were 2-ocean fish and in 2018 were 1-ocean fish. Big Bear Creek juvenile emigration estimates in 2017 (10,928 fish) and 2018 (10,183 fish) were above the long-term average, whereas, EFPR estimates in 2017 (15,210 fish) and 2018 (9,781 fish) were slightly below the long-term average. Emigrant age structure and length-at-age estimates were relatively consistent across years in BBC, but have shifted to older and larger emigrants in the EFPR. Freshwater productivity estimates averaged 122 juvenile recruits per spawner in BBC and 362 juvenile recruits per spawner in the EFPR. Recruits per spawner decreased as female spawner abundance increased suggesting density-dependent mechanisms occurred, most notably in BBC. The observed shifts in EFPR emigrant age, growth, and survival indicate an initial watershed-scale response in steelhead within the upper Potlatch River watershed.
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation Project by : Brian Anthony Knoth
Download or read book Potlatch River Steelhead Monitoring and Evaluation Project written by Brian Anthony Knoth and published by . This book was released on 2021 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Chapter 2] We conducted habitat and electrofishing surveys to monitor rearing habitat conditions and juvenile steelhead (Oncorhynchus mykiss) production metrics in treatment and control areas in the Potlatch River basin. Low water habitat surveys documented the extent of de-watering in the lower watershed tributaries and data from 2019 and 2020 fell within the range of previous estimates. In the upper watershed, habitat metrics were highly variable with no discernable improvements in the East Fork Potlatch River treatment area in 2019 and 2020. Juvenile steelhead density estimates in 2019 and 2020 fell within the range of previous estimates for all tributaries except Pine Creek (control tributary) which had the lowest estimates on record. Parrto-smolt survival estimates decreased in 2019 and 2020, relative to 2018, for all tributaries except the West Fork Little Bear Creek which showed an opposite pattern. The positive correlations between juvenile steelhead growth and survival with the amount of wetted habitat validates the need to improve base flow conditions in the lower Potlatch River watershed. In the upper watershed, a positive correlation between juvenile steelhead density and large wood highlights the need to improve in-stream habitat complexity in the treatment area.
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2008 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2011 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2007 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2009 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2012 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potlatch River Steelhead Monitoring and Evaluation by : Brett J. Bowersox
Download or read book Potlatch River Steelhead Monitoring and Evaluation written by Brett J. Bowersox and published by . This book was released on 2011 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2009 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2012 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2013 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies written by Timothy Copeland and published by . This book was released on 2008 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2014 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies by : Alan Frank Byrne
Download or read book Idaho Steelhead Monitoring and Evaluation Studies written by Alan Frank Byrne and published by . This book was released on 2007 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2015 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies by : Alan Frank Byrne
Download or read book Idaho Steelhead Monitoring and Evaluation Studies written by Alan Frank Byrne and published by . This book was released on 2006 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report by : Timothy Copeland
Download or read book Idaho Steelhead Monitoring and Evaluation Studies Project Progress Report written by Timothy Copeland and published by . This book was released on 2011 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
