Author: Jeffrey L. EstensenPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 21
Book Description
Estimation of Abundance and Distribution of Chum Salmon in the Unalakleet River Drainage, 2004
Author: Jeffrey L. EstensenPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 21
Book Description
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.
Estimation of Chum Salmon Abundance, Migration Timing, and Spawning Distribution in the Fish River Complex, Norton Sound, Alaska, 2002-2004
Author: Gary L. ToddPublisher:
ISBN:
Category : Biotelemetry
Languages : en
Pages : 38
Book Description
Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2009
Author: Philip John JoyPublisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 42
Book Description
Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2010
Author: Philip John JoyPublisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 38
Book Description
Distribution of Chum Salmon in the Taku River Drainage, 2004
Author: James Everett AndelPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 18
Book Description
Abundance, Distribution, and Migration Patterns of Summer Chum Salmon in the Yukon River Drainage, 2014-2015
Author: Sean LarsonPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 16
Book Description
Summer chum salmon (Oncorhynchus keta) in the Yukon River support robust commercial and subsistence fisheries; however, fishery managers have had incomplete information about their run timing, spawning distribution, stock composition, and abundance. To address this, a radiotelemetry study was implemented on summer chum salmon in 2014 and 2015. A total of 1,232 (2014) and 1,199 (2015) summer chum salmon were fitted with radio transmitters. Radiotagged summer chum salmon were mapped, travel rates were estimated, and proportions of tagged fish recovered within different tributaries were determined. Basic mark-recapture assumptions were tested and abundance above the tagging site was estimated. Summer chum salmon were found to be widely distributed within the Yukon River drainage. Although a few tagged fish were observed in most locations, roughly 50% of tagged fish were observed in the Anvik, Koyukuk, and Bonasila rivers each year. Summer chum salmon destined for upper river spawning areas traveled faster than those to lower river areas. Summer chum salmon tended to recover quickly after being tagged, and traveled relatively fast within the mainstem Yukon River, but slowed down after entering their spawning tributaries. The 2014 mark-recapture abundance estimate was about 2,100,000 fish, which corresponded with summer chum salmon passage at the mainstem Yukon River sonar near Pilot Station. The 2015 mark-recapture abundance estimate was also about 2,100,000 fish, which was larger than the summer chum salmon passage at the sonar near Pilot Station. Results from this study help to evaluate sonar passage estimates and provide fishery managers with more detailed information about distribution and migratory patterns of individual summer chum salmon stocks within the Yukon River drainagewide population.
Sonar Estimation of Fall Chum Salmon Abundance in the Sheenjek River, 2004
Author: Roger D. DunbarPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 68
Book Description
This reports on the Hydroacoustic Technology Incorporated (HTI) fixed-location, split-beam sonar, which was used to estimate chum salmon, Oncorhynchus keta, escapement in the Sheenjek River from August 8 to September 25, 2004.
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
Sonar Estimation of Fall Chum Salmon Abundance in the Sheenjek River, 2022
Author: Jody D. LozoriPublisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 49
Book Description
The Alaska Department of Fish and Game (ADF&G), actively manages chum salmon fisheries in the Yukon River drainage. The purpose of the Sheenjek River sonar project is to monitor escapement of fall chum salmon Oncorhynchus keta in the Sheenjek River. This project will use imaging sonar equipment on the Sheenjek River to generate timely, inseason passage estimates of fall chum salmon bound for spawning grounds in the upper reaches of the river (Dunbar 2013). Beach seine sampling will be conducted to collect biological data used in characterizing the fall chum salmon run. The project site is located approximately 10 km upstream from the mouth of the river (Figure 1) and is scheduled to operate continuously from approximately August 8 through September 24 annually.