Further consideration of causes for decline of Karluk sockeye salmon

Metadata Updated: January 29, 2020

Karluk Lake and its associated waterways (Figure 1) are known to be highly productive for sockeye salmon, Oncorhynchus nerka, however, the catch and total run of these fish have declined in recent decades (Figure 2). Annual harvest has been regulated since the 1920's but the generally declining trend of the run has not been reversed. The U.S. Fish and Wildlife Service concluded that previous analyses of available data should be reexamined in light of data accumulated in recent years to determine whether a clearer understanding can now be obtained of the factors causing decline in Karluk sockeye salmon. Results of that effort are described in this report which includes an overview of Karluk sockeye salmon biology, a discussion of the environmental impacts for sockeye resultsing from the fisheries and use of a counting weird, and a proposal that changes in the fish community have caused decline in Karluk sockeye.

Access & Use Information

Restricted: This dataset can only be accessed or used under certain conditions. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.
The information resource is proprietary and/or copyrighted. Access to this information by the public is very limited. Please contact the associated Point of Contact regarding additional use constraints and requirements for obtaining the information.

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References

https://ecos.fws.gov/ServCat/Reference/Profile/106169

Dates

Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_106169
Maintainer
Brent Frakes
Maintainer Email
Public Access Level restricted public
Bureau Code 010:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality true
Harvest Object Id a464a05a-0298-4a25-ab69-eded81819929
Harvest Source Id 5b7e4031-1e2d-428b-92e2-56554bbd7371
Harvest Source Title DOI Open Data
Data First Published 1980-01-01
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/106169
Data Last Modified 1980-01-01
Program Code 010:094, 010:028
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/106169"
Rights The information resource is proprietary and/or copyrighted. Access to this information by the public is very limited. Please contact the associated Point of Contact regarding additional use constraints and requirements for obtaining the information.
Source Datajson Identifier true
Source Hash e4cf90d75aaac57555419c7fc610a739c848fcc1
Source Schema Version 1.1
Spatial -179.150085,51.2099228,-133.48848,70.32941
Category "Unpublished Report"

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