AYK - Climate-Ocean Effects on Chinook Salmon, Phase 1-3

Salmonid Research, Monitoring, and Evaluation (RM&E)

Project ID	AK45559E
Recovery Domains	-
Start Date	07/01/2007
End Date	06/30/2010
Year	2005
Status	Completed
Last Edited	05/01/2025

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Description

New data on salmon, climate, ocean conditions in the Bering Sea were collected during two Japanese research vessel cruises in summer 2007 on the Wakatake maru and the Oshoro maru. A comprehensive high seas Chinook salmon database was developed. Traditional knowledge data were collected in the Norton Sound region. Mapping of distribution and migration patterns of all species AYK salmon using data from high seas salmon tagging experiments was completed, and results indicate that AYK Chinook salmon spend most or all of their ocean life in the Bering Sea. A scale pattern database, which will be used in future work to reconstruct histories of ocean age, growth, and size-selective mortality, was developed. Data for mapping climate and ocean conditions were compiled from public-access databases and high seas salmon research vessel data. New summer (June-July) food habits data were collected during the Wakatake maru survey in the central Bering Sea, and provide new evidence of prey size selection and overlap in diets of different age groups of Chinook salmon. Laboratory analyses of immature and maturing Chinook salmon stomach samples collected in 2007 by the North Pacific Groundfish Observer Program were completed, and provide the first information on winter diets of Chinook salmon in the eastern Bering Sea.

Project Benefit

earmark: Results will benefit salmon, salmon fishers, and salmon fisheries of the AYK region by providing products and information that can be used to improve fishery management.

Source

Funds

PCSRF

$635,264

Report Total:

$635,264

Worksites

20081871

Worksite Identifier: 20081871
Start Date:
End Date:

Area Description

No Area Description data was found for this worksite.

Location Information

Basin:
Subbasin:
Watershed:
Subwatershed:

State:
Recovery Domain:
Latitude: 57.222760828850525
Longitude: -165.61523437498587

ESU

Un-Named ESU Chinook

Map

Photos

Metrics

E.0 Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)

. . E.0.a RM&E Funding 641,240.00
. . E.0.b
Complement habitat restoration project

None
. . E.0.c
Project identified in a plan or watershed assessment.

Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative
. . E.0.d.1 Number of Cooperating Organizations 8

. . E.0.d.2

Name Of Cooperating Organizations.
US National Marine Fisheries Service, US Geological Survey, Natural Resources Consultants, Alaska Deparetment of Fish and Game, Hokkaido University, Fisheries Agency of Japan, Kamchatka Research Institute of Fisheries and Oceanography (KamchatNIRO), North Pacific Anadromous Fish Commission

. . E.0.e.1 Number of reports prepared 15

. . E.0.e.2

Name Of Report
Myers, K.W., R.V. Walker, N.D. Davis, J. L. Armstrong, and M. Kaeriyama. 2009. High seas distribution, biology, and ecology of Arctic-Yukon-Kuskokwim salmon: direct information from high seas tagging experiments, 1954-2006. Am. Fish. Soc. Symp. 70: 201-239. (Available at www.npafc.org).

. . E.2 ResearchY (Y/N)

. . . . E.2.a Research Funding 641,240.00

. . . . E.2.b.1 Modeling and data analysisY (Y/N)

. . . . . . E.2.b.1.a

Key issues addressed by modeling and data analysis research
Addressed the Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative (AYK SSI) research priority: “Marine survival of salmon is more affected by variability in ocean temperature and environmental variables than by variability in marine fishing mortality.”

. . . . E.2.b.2 tissue sampling and analysisY (Y/N)

. . . . . . E.2.b.2.a

Key issues addressed by tissue sampling and analysis research
Addressed the Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative (AYK SSI) research priority: “Marine survival of salmon is more affected by variability in ocean temperature and environmental variables than by variability in marine fishing mortality.”

. . . . E.2.b.4 Life history studyY (Y/N)

. . . . . . E.2.b.4.a

Key issues addressed by life history research
Addressed the Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative (AYK SSI) research priority: “Marine survival of salmon is more affected by variability in ocean temperature and environmental variables than by variability in marine fishing mortality.”

. . . . E.2.b.5 Habitat attribute studyY (Y/N)

. . . . . . E.2.b.5.a

Key issues addressed by habitat attribute research
Addressed the Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative (AYK SSI) research priority: “Marine survival of salmon is more affected by variability in ocean temperature and environmental variables than by variability in marine fishing mortality.”