Geo-Referenced, Abundance Calibrated Ocean Distribution of Chinook Salmon (Oncorhynchus tshawytscha) Stocks across the West Coast of North America Public Deposited

http://ir.library.oregonstate.edu/concern/articles/gm80hx338

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article was published by the Public Library of Science and is in the public domain. The published article can be found at:  http://www.plosone.org/.

Supporting Information available at:  http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0131276#sec028

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Understanding seasonal migration and localized persistence of populations is critical for effective species harvest and conservation management. Pacific salmon (genus Oncorhynchus) forecasting models predict stock composition, abundance, and distribution during annual assessments of proposed fisheries impacts. Most models, however, fail to account for the influence of biophysical factors on year-to-year fluctuations in migratory distributions and stock-specific survival. In this study, the ocean distribution and relative abundance of Chinook salmon (O. tshawytscha) stocks encountered in the California Current large marine ecosystem, U.S.A were inferred using catch-per-unit effort (CPUE) fisheries and genetic stock identification data. In contrast to stock distributions estimated through coded-wire-tag recoveries (typically limited to hatchery salmon), stock-specific CPUE provides information for both wild and hatchery fish. Furthermore, in contrast to stock composition results, the stock-specific CPUE metric is independent of other stocks and is easily interpreted over multiple temporal or spatial scales. Tests for correlations between stock-specific CPUE and stock composition estimates revealed these measures diverged once proportional contributions of locally rare stocks were excluded from data sets. A novel aspect of this study was collection of data both in areas closed to commercial fisheries and during normal, open commercial fisheries. Because fishing fleet efficiency influences catch rates, we tested whether CPUE differed between closed area (non-retention) and open area (retention) data sets. A weak effect was indicated for some, but not all, analyzed cases. Novel visualizations produced from stock-specific CPUE-based ocean abundance facilitates consideration of how highly refined, spatial and genetic information could be incorporated in ocean fisheries management systems and for investigations of biogeographic factors that influence migratory distributions of fish.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Bellinger, M. R., Banks, M. A., Bates, S. J., Crandall, E. D., Garza, J. C., Sylvia, G., & Lawson, P. W. (2015). Geo-referenced, abundance calibrated ocean distribution of Chinook salmon (Oncorhynchus tshawytscha) stocks across the west coast of North America. PLoS ONE, 10(7), e0131276. doi:10.1371/journal.pone.0131276
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-08-21T18:05:59Z No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) BellingerMFishWildlifeGeo-ReferencedAbundanceCalibrated.pdf: 2167551 bytes, checksum: 202414d27347ea8205dd712acaa6394f (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-08-21T18:06:16Z (GMT) No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) BellingerMFishWildlifeGeo-ReferencedAbundanceCalibrated.pdf: 2167551 bytes, checksum: 202414d27347ea8205dd712acaa6394f (MD5)
  • description.provenance : Made available in DSpace on 2015-08-21T18:06:16Z (GMT). No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) BellingerMFishWildlifeGeo-ReferencedAbundanceCalibrated.pdf: 2167551 bytes, checksum: 202414d27347ea8205dd712acaa6394f (MD5) Previous issue date: 2015-07-22

Relationships

In Administrative Set:
Last modified: 07/27/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items