Biological Escapement Goals for Yukon River Fall Chum Salmon PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Biological Escapement Goals for Yukon River Fall Chum Salmon PDF full book. Access full book title Biological Escapement Goals for Yukon River Fall Chum Salmon by Douglas Murrell Eggers. Download full books in PDF and EPUB format.
Author: Douglas Murrell Eggers
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 154
Get Book Here
Book Description
Author: Douglas Murrell Eggers
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 154
Get Book Here
Book Description
Author: Fred J. Bue
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 37
Get Book Here
Book Description
In response to the guidelines established in the Policy for the Management of Sustainable Salmon Fisheries (SSFP; 5 AAC 39.222), the Alaska Board of Fisheries (BOF) classified the Yukon River fall chum salmon Oncorhynchus keta stock as a yield concern and classified the Toklat and Fishing Branch Rivers fall chum salmon stocks as management concerns at the September 2000 work session. An action plan was developed by the Alaska Department of Fish and Game (ADF & G) and acted upon by the BOF in January 2001. The SSFP directs ADF & G to assess salmon stocks in areas addressed during the BOF regulatory cycle to identify stocks of concern and to reassess the stock of concern status. In 2003, the department recommended continuation of the Yukon River fall chum salmon classification as a stock of yield concern, which was supported by the BOF at its January 2004 meeting. The Toklat River stock was removed as a management concern because the BOF realigned the escapement objective from an optimal escapement goal (OEG) to the established biological escapement goal (BEG) which did not fit the criteria of a management concern. However, the Toklat River fall chum salmon stock was included in the drainage-wide yield concern classification. The Fishing Branch River stock was also removed as a management concern because management of that portion of the drainage is covered by an annex to the Pacific Salmon Treaty, the U.S./Canada Yukon River Salmon Agreement (Agreement) which is governed under the authority of the Yukon River Panel (Panel). Based on the much improved run size since 2002 and large available surpluses in 2003, 2005 and 2006 being near the historical yield, the Yukon River fall chum salmon stock no longer meets the stock of yield concern criteria. Therefore, ADF & G recommends the Yukon River fall chum salmon stock no longer be considered as a stock of concern. BEGs for fall chum salmon and the Yukon River Drainage Fall Chum Salmon Management Plan were both reviewed and updated at the January 2004 BOF meeting. Escapement and harvest monitoring projects are in place to aid in managing for sustained yield objectives. Proposal 173 has been submitted to the BOF for considering changes to the Yukon River Coho Salmon Management Plan to coordinate management of the overlapping fall chum and coho salmon fisheries.
Author: Linda K. Brannian
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 46
Get Book Here
Book Description
An Alaska Department of Fish and Game Escapement Goal Review Team (review team) was convened to review salmon escapement goals for the Arctic-Yukon-Kuskokwim Region in preparation for the January 2007 meeting of the Alaska Board of Fisheries. The review team made recommendations to the Regional Supervisors of the Divisions of Commercial Fisheries and Sport Fish, who in turn make recommendations to the directors of the two divisions. The review team recommended establishing three new escapement goals in the Kuskokwim Management Area, no new goals in the Yukon Management Area, and two new goals in the Norton Sound-Port Clarence and Kotzebue Management Areas. In addition they recommended revising three escapement goals in the Kuskokwim Management Area (one for Chinook salmon, one for chum salmon, and one for sockeye salmon), none in the Yukon Management Area, and five chum salmon goals in the Kotzebue Management Area. They also recommended discontinuing one aerial survey escapement goal in the Kuskokwim Management Area where that goal was recommended to be replaced with a weir goal. While most of the recommended new goals are sustainable escapement goals, spawner-recruit analyses were performed to recommend biological escapement goals for Kobuk and Noatak rivers chum salmon in the Kotzebue Management Area and Middle Fork Goodnews River Chinook and Sockeye salmon in the Kuskokwim Management Area. The escapement goal review team also made recommendations for specific stocks to be reviewed in detail prior to the 2010 Alaska Board of Fisheries meeting.
Author: Steven J. Fleischman
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 32
Get Book Here
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.
Author: John H. Clark
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 56
Get Book Here
Book Description
Author: John H. Clark
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 44
Get Book Here
Book Description
Author: Yukon River Joint Technical Committee
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 169
Get Book Here
Book Description
The Yukon River Joint Technical Committee (JTC) of the United States and Canada meets twice a year to analyze and discuss harvest and escapement goals, management trends, postseason reviews, preseason outlooks, and results of cooperative research projects for Canadian-origin Yukon River salmon. This report summarizes the status of Chinook Oncorhynchus tshawytscha, coho O. kisutch, and summer and fall chum salmon O. keta stocks in 2020, presents a 2021 season outlook, and provides data about salmon harvests in commercial, subsistence, aboriginal, personal use, domestic, and sport or recreational fisheries. Summaries of Yukon River research projects are also included. For 2020, the preliminary estimate of Chinook salmon (mainstem) spawning escapement in Canada was 30,967 fish, which was below the interim management escapement goal (IMEG) range of 42,500–55,000 fish. A preliminary estimate of the total Canadian-origin Chinook salmon run was 45,501 fish. The preliminary estimate of fall chum salmon spawning escapement in the Canadian mainstem Yukon River was approximately 23,512 fish, which was below the IMEG range of 70,000–104,000 fish. The preliminary estimate of fall chum salmon spawning escapement in the Fishing Branch River (Porcupine River), obtained from a weir count was 4,795 fish, which was below the IMEG range of 22,000–49,000 fish. Recommended interim management escapement goals for Canadian-origin mainstem Yukon River Chinook and fall chum salmon and Fishing Branch (Porcupine River) fall chum salmon in 2021 remain the same as for 2020.
Author: Zachary W. Liller
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 51
Get Book Here
Book Description
An Alaska Department of Fish and Game (ADF&G) escapement goal review team evaluated salmon stocks in the Arctic-Yukon-Kuskokwim (AYK) region in advance of the January 2019 Alaska Board of Fisheries (BOF) meeting. At the time of this review there existed 65 escapement goals for salmon stocks in the AYK region, including 5 optimum escapement goals established by the BOF. The review team did not recommend any new escapement goals be established at this time. The review team has recommended that 12 escapement goals be revised and 7 escapement goals be discontinued. The recommendations made by the review team were intended to align salmon escapement goals throughout the region with current fishery management practices and status of escapement monitoring programs. Within the Norton Sound-Port Clarence Area, the review team recommended discontinuing the Norton Sound Subdistrict 1 aggregate chum salmon Oncorhynchus keta goal and revising goals for the Eldorado, Nome, and Snake rivers which contribute to the aggregate. Revisions were also recommended for chum salmon goals established for the Kwiniuk and Tubutulik rivers and the sockeye salmon O. nerka goal established for Salmon Lake/Grand Central River. Within the Kotzebue Area, the review team recommended discontinuing the Kotzebue-wide aggregate chum salmon goal and individual chum salmon goals for the Salmon, Squirrel, and Tutuksuk rivers. Additionally, revisions were recommended for the 2 remaining chum salmon escapement goals established for the Noatak and Upper Kobuk/Selby rivers. Within the Yukon Area, the review team recommended discontinuation of the Tanana River fall chum salmon goal and revisions to fall chum salmon goals for the Delta and Chandalar rivers. Within the Kuskokwim Area, the review team recommended discontinuation of the Holitna River Chinook salmon O. tschawytscha aerial survey goal and revised the existing Chinook and sockeye salmon goals for the Middle Fork of Goodnews River.
Author: Lawrence S.. Buklis
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 67
Get Book Here
Book Description
Author: John H. Clark
Publisher:
ISBN:
Category : Chum salmon
Languages : en
Pages : 53
Get Book Here
Book Description
A compilation and analysis of estimated-escapement, -harvest and -age compositions information for chum salmon (Oncorhynchus keta) returning to Subdistrict Three (Moses Point), Norton Sound, Alaska, with specific reference to the two principle producing streams--the Kwiniuk and Tubutulik rivers.
