Author: Peter Mallon ClearyPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 38
Book Description
Reports the results of fall 2007 chum salmon, Oncorhynchus keta, fish wheel mark-recapture studies on the Tanana and Kantishna Rivers.
Fall Chum Salmon Mark-recapture Abundance Estimation on the Tanana and Kantishna Rivers, 2007
Author: Peter Mallon ClearyPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 38
Book Description
Reports the results of fall 2007 chum salmon, Oncorhynchus keta, fish wheel mark-recapture studies on the Tanana and Kantishna Rivers.
Fall Chum Salmon Mark-recapture Abundance Estimation on the Tanana and Kantishna Rivers, 2004
Author: Peter Mallon ClearyPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 39
Book Description
Fall Chum Salmon Mark-recapture Abundance Estimation on the Tanana and Kantishna Rivers, 2005
Author: Peter Mallon ClearyPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 38
Book Description
Reports the results of fall chum salmon, Oncorhynchus keta, fish wheel mark-recapture studies on the Tanana and Kantishna Rivers.
Estimated Abundance of Adult Fall Chum Salmon in the Upper Yukon River, Alaska, 1997
Author: Tevis James UnderwoodPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 48
Book Description
Presents results of a mark-recapture experiment using Darroch's two-sample, stratified model to estimate the number of fall chum salmon migrating up the Yukon River above the Tanana River from July 21-September 28, 1997. Results reaffirm conclusions drawn in 1996 that this model provides a viable means of estimating the abundance of fall chum salmon in the upper Yukon River.
Estimated Abundance of Adult Fall Chum Salmon in the Middle Yukon River, Alaska, 2005
Author: Christine K. ApodacaPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 25
Book Description
"Mark and recapture data were collected to estimate the abundance of fall chum salmon Oncorhynchus keta during 2005 in the middle Yukon River, above the Tanana River confluence"--Page [1].
Sonar Estimation of Fall Chum Salmon Abundance in the Sheenjek River, 2007
Author: Roger D. DunbarPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 34
Book Description
This reports on the Dual-Frequency Identification Sonar (DIDSON), which was used to estimate chum salmon, Oncorhynchus keta, escapement in the Sheenjek River from August 11 to September 24, 2007.
Feasibility of Estimating Salmon Abundance in the Tanana River Using Sonar, 2012-2014
Author: Naomi B. BrodersenPublisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 111
Book Description
A study was conducted from 2012 to 2014 to assess the feasibility of using sonar, in combination with gillnetting and a fish wheel, to estimate salmon abundance in the Tanana River. Eight sites between Cosna Bluff and the confluence of the Kantishna and Tanana rivers were surveyed, bottom profiles were analyzed for suitability of sonar operation, and a site near Manley Hot Springs was selected. Split-beam sonar was operated on the left bank, and imaging sonar on the right bank. Drift and set gillnets were used to apportion the left bank sonar estimates, and drift gillnets and a fish wheel were used to apportion the right bank sonar estimates. Both sonar and test fishing methods were modified and assessed for effectiveness throughout both seasons. The sonars were found to provide effective coverage with 95% of fish passing within 80 m of the transducer on the left bank, and within 16 m on the right bank. The drift gillnets and fish wheel proved to be effective fishing methods, though refinement of these methods should be a goal in future seasons. Based on the information obtained, estimating salmon abundance in the Tanana River using sonar, with drift gillnets and a fish wheel used for species apportionment is feasible.
Estimation of Abundance and Distribution of Chum Salmon (Oncorhynchus Keta) in the Unalakleet River Drainage, 2005
Author: Jeffrey L. EstensenPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 30
Book Description
This document reports on the second of a 3-year project using radiotelemetry mark and recapture methods to determine the proportion of chum salmon, Oncorhynchus keta, migrating into North River and above a proposed weir site on Unalakleet River, and to estimate total Unalakleet drainage abundance.
A Mark-recapture Experiment to Estimate the Abundance of Kuskokwim River Sockeye, Chum, and Coho Salmon, 2002
Author: Carol M. KerkvlietPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 81
Book Description
Escapement Estimation, Spawner-recruit Analysis, and Escapement Goal Recommendation for Fall Chum Salmon in the Yukon River Drainage
Author: Steven J. FleischmanPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 32
Book Description
Historical escapement and run size of fall chum salmon Oncorhynchus keta was reconstructed from incomplete sonar, weir, counting tower, mark-recapture, aerial survey, and foot survey data of varying precision from 1974 to 2007. The resulting estimates of drainage-wide escapement were fitted to an age-structured Ricker spawner-recruit model. Bayesian statistical methods were employed, which allowed for realistic assessment of uncertainty in the presence of measurement error, serial correlation, and missing data.