Diablo Canyon power plant site ecological study report; January 1, 1979 - June 30, 1980

Laurent, Laurence L. and Gotshall, Daniel W. and Owen, Sandra L. and Vaughan, Douglas L. (1982) Diablo Canyon power plant site ecological study report; January 1, 1979 - June 30, 1980. Avila Beach, CA, California Department of Fish and Game, Marine Resources Region, (Marine Resources Administrative Report, 81-7)

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Abstract

Full-scale field studies at the Diablo Canyon Nuclear Power Plant Site were resumed in early 1979 after a year of reduced effort to provide time for preparation of a final report of pre-operational studies. Since the power plant had not begun operation during this period (January 1,1979 - June 30, 1980), these data will be added to our pre-operational data base. Personnel time was spent at the site conducting intertidal and subtidal surveys, otter counts, conducting a shore survey of the Nereocystis in Diablo Cove, processing algae samples in the laboratory, and compiling the analyzed data. At permanent and random intertidal stations, red abalone numbers remained at very low levels; black abalone densities were higher than previous surveys at some stations. At subtidal stations, giant red sea urchin densities remained at low levels and, conversely, Laminaria and Pterygophora remained at a high level of abundance. Sea otters continued to forage in the study areas, with the highest observed numbers of otters occurring in the spring and summer, and the lowest numbers occurring in the fall and winter. (91pp.)

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