Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2002 written by Jan L. Weller and published by . This book was released on 2003 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2001 written by Jan L. Weller and published by . This book was released on 2003 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2003 written by Jan L. Weller and published by . This book was released on 2004 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2004 written by Jan L. Weller and published by . This book was released on 2006 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report estimates the abundance of medium and large chinook salmon Oncorhynchus tshawytscha that returned to spawn in the Unuk River in 2004, using a two-event mark-recapture experiment.

Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2005 written by Jan L. Weller and published by . This book was released on 2006 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report estimates the abundance of medium and large chinook salmon, Oncorhynchus tshawytscha, that returned to spawn in the Unuk River in 2005, using a two-event mark-recapture experiment.

Download or read book Estimation of the Escapement of Chinook Salmon in the Unuk River in 2006 written by Jan L. Weller and published by . This book was released on 2009 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report estimates, using a two-event mark-recapture experiment, the abundance of chinook salmon, Oncorhynchus tshawytscha, that returned to spawn in the Unuk River in 2006.

Download or read book A Mark recapture Experiment to Estimate the Escapement of Chinook Salmon in the Unuk River 1998 written by Edgar L. Jones (III.) and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Mark recapture Experiment to Estimate the Escapement of Chinook Salmon in the Unuk River 1999 written by Edgar L. Jones (III.) and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Mark recapture Experiment to Estimate the Escapement of Chinook Salmon in the Unuk River 2000 written by Edgar L. Jones (III.) and published by . This book was released on 2002 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Mark recapture Experiment to Estimate the Escapement of Chinook Salmon in the Unuk River 1997 written by Edgar L. Jones (III.) and published by . This book was released on 1998 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chinook Salmon Escapement in the Gulkana River 2002 written by Brian Daniel Taras and published by . This book was released on 2005 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation Into the Factors Influencing Escapement Estimation for Chinook Salmon Oncorhynchus Tshawytscha on the Lower Shuswap River British Columbia microform written by Nicole Dorothy Trouton and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The area-under-the-curve (AUC), method based on helicopter visual enumeration, is a commonly used technique to estimate escapement of chinook salmon (Oncorhynchus tshawytscha) for the Fraser River and its tributaries. Two key factors associated with this method are survey life and observer efficiency. The survey life currently assumed by Fisheries and Oceans Canada (DFO) for Thompson Basin streams is seven days and for most counting flights the assumed observer efficiency is 100%. Telemetry and tower observations were used to estimate annual (2000-2002) survey lives for male (telemetry) and female (telemetry and tower observation) chinook salmon in the Lower Shuswap River. Mark-recapture based survey lives were directly estimated by dividing the mark-recapture escapement estimate by the AUC estimate of total spawner days. Observer efficiency was estimated by comparing observer counts from helicopters to counts from photographs. Various combinations of total fish counts, observer efficiencies, and survey lives were used in AUC escapement estimates, and compared to mark-recapture and peak count estimates. Survey lives varied annually. Many of the estimated mean survey lives were significantly less than seven days; mark-recapture based survey lives were generally less than those estimated from telemetry and observations from towers; and mean survey lives for males were higher than for females. The mean observer efficiency of helicopter enumeration was 97% (95% CI is * 6%), this is not significantly different than the 100% assumed by DFO.

Download or read book Abundance and Distribution of the Chinook Salmon Escapement on the Alsek River 2002 written by Keith A. Pahlke and published by . This book was released on 2003 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abundance of the Chinook Salmon Escapement on the Stikine River 2002 written by John Aram Der Hovanisian and published by . This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of Chinook Salmon Escapement in the Taku River 2013 written by Jeffrey Todd Williams and published by . This book was released on 2013 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Adult Chinook Salmon Abundance on the Chilkat and Unuk Rivers Using Transgenerational Genetic Mark recapture written by Randy L. Peterson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transgenerational genetic mark–recapture (tGMR) methods will be used to estimate the spawning abundance of Chinook salmon Oncorhynchus tshawytscha at the Chilkat and Unuk Rivers in 2020 and 2021, respectively. Tissue samples from adults returning to the Chilkat River were collected in the summer of 2020 and from parr rearing in the Chilkat River in the fall of 2021. Lab work and data analysis will be completed in the winter of 2021–2022. Similarly, tissue samples from adults returning to the Unuk River were collected in the summer of 2021, and samples will be collected from parr in the fall of 2022. Lab work and data analysis will be completed in the winter of 2022–2023. These studies will be used to determine the feasibility of using tGMR to estimate escapement in Southeast Alaska by comparing tGMR abundance estimates to abundance estimates generated through existing field programs. This operational plan covers the lab and project reporting aspects of these projects. Primary data collection activities are described in the project-specific operational plans.

Download or read book Abundance Estimates of the Escapement of Chinook Salmon Into the Kenai River Alaska by Analysis of Tagging Data 1987 written by Robert Harvey Conrad and published by . This book was released on 1988 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: