• Login
    View Item 
    •   Oxy Scholar Home
    • Bulletin of the Southern California Academy of Sciences
    • Bulletin of the Southern California Academy of Sciences
    • View Item
    •   Oxy Scholar Home
    • Bulletin of the Southern California Academy of Sciences
    • Bulletin of the Southern California Academy of Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Status and Trend in the Southern California Spiny Lobster Fishery and Population: 1980-2011.

    Thumbnail
    View/Open
    Miller_Southern_California_lobster_fishery_and_population_SCAS_12014.docx (1.069Mb)
    i0038_3872_113_1_14.pdf (4.998Mb)
    Subject
    California spiny lobster; Panulirus; hoop net; recreational fishery; Southern California; power plant
    Author
    Miller, Eric
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    113
    Issue
    scas/vol113/iss1; 1
    Metadata
    Show full item record
    URI
    https://scholar.oxy.edu/handle/20.500.12711/10459
    Abstract
    The California spiny lobster (Panulirus interruptus) fishery in southern California ranks amongst the State's most economically important fisheries. An analysis of commercial harvest data confirms that the fishery was landing near-record catches in the late-2000s through early-2010s. Advances in recreational fishing technology likely tempered commercial fishery landings per unit effort. The commercial catch per trap pulled declined 15%, on average, in years after the introduction of a new rigid-style hoop net in the recreational fishery. Fishery-independent data sourced from power plant marine life monitoring recorded increased California spiny lobster abundance after 1989 with evidence of increased larval settlement beginning circa 1989. This timing was consistent with previously reported oceanographic changes in the North Pacific. Power plant abundance indices derived for lobsters approximately one year before recruiting into the fishery, as well as young-of-the-year, significantly predicted the commercial landings at index-appropriate temporal lags, i.e. one year for next year's recruitment. Carapace lengths measured during power plant surveys in Santa Monica Bay, where commercial fishing was prohibited, significantly declined for the total sample and females only after the introduction of the new rigid hoop net. Male carapace lengths were not significantly different between the two periods. The power plant data confirms that, as of 2012, the fishery appears healthy but warns of the need to monitor sublegal individuals and their dependence on oceanographic conditions. These analyses also indicate the urgency of monitoring the recreational fishery harvest, especially the potential effects of the new rigid hoop net.
    Collections
    • Bulletin of the Southern California Academy of Sciences

    Browse

    All of Oxy ScholarCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal IssueThis CollectionBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal Issue

    My Account

    LoginRegister

    DSpace software copyright © 2002-2021  DuraSpace
    Contact Us | Send Feedback
    DSpace Express is a service operated by 
    Atmire NV