Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Brian C. Spence; Walter G. Duffy; John Carlos Garza; Bret Harvey; Susan M. Sogard; Laurie A. Weitkamp; Thomas H. Williams; David A. Boughton
    Date: 2011
    Source: NOAA Technical Memorandum NMFS-SWFSC-472. 113 p
    Publication Series: Miscellaneous
    PDF: Download Publication  (2.17 MB)


    In November 2003, the National Marine Fisheries Service received a petition from Homer T. McCrary to redefine the southern extent of the Central California Coast Coho Salmon Evolutionarily Significant Unit (CCC Coho Salmon ESU) to exclude populations that spawn in coastal watersheds south of the entrance to San Francisco Bay (i.e., the Golden Gate). The petitioner’s primary premise is that the coho salmon populations inhabiting this region for the last century are the result of introductions of nonnative stocks from locations north of San Francisco. The petitioner presented four main lines of information to support his conclusion: (1) historical (pre-1905) accounts suggesting that the southern boundary of the CCC Coho Salmon ESU was at or north of San Francisco Bay, (2) information and historical accounts on stocking of nonnative coho salmon from Baker Lake, Washington, between 1906 and 1910, which the petitioner contended pre-dated any records of coho salmon occurring in streams south of San Francisco Bay; (3) archeological studies conducted in the central California coast region that had failed to detect coho salmon remains in Native American middens; and (4) assertions that the dynamic nature of the physical environment of the Santa Cruz Mountains is not conducive to persistent coho salmon populations.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Spence, Brian C.; Duffy, Walter G.; Garza, John Carlos; Harvey, Bret; Sogard, Susan M.; Weitkamp, Laurie A.; Williams, Thomas H.; Boughton, David A. 2011. Historical occurrence of coho salmon (Oncorhynchus kisutch) in streams of the Santa Cruz Mountain region of California: response to an Endangered Species Act petition to delist coho salmon south of San Francisco Bay. NOAA Technical Memorandum NMFS-SWFSC-472. 113 p.


    endangered species, salmonidae, coho, distribution, California

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page