Count & Biomass of Ochre Sea Stars, Pisaster ochraceus at Hopkins Marine Station

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Abstract/Contents

Abstract: Data on ochre sea stars (Pisaster ochraceus) at three sites on Point Cabrillo (Mussel Point) within the Hopkins Marine Life Refuge in Monterey Bay, California span a 50-year period (Feder 1956, 1959, 1970; Pearse et al. 2009). Howard Feder began the study as part of his Ph. D. dissertation research during 1953-1955. He compared the numbers, sizes, and prey of ochre sea stars at three habitats that differed in wave exposure and prey. He found that the sea stars were much larger at the most exposed site, which was dominated by mussels, than at the other two sites, which had few mussels. The most protected site, with the smallest amount of prey, had the fewest, smallest sea stars. Three decades later, beginning in 1986, a new team of researchers (John S. Pearse, James B. McClintock, and Kenneth E. Vicknair) resumed Feder’s study and found striking changes.

Principal investigator	Pearse, John S.
Author	Feder, Howard M.

Related Publication	Feder, H.M. 1956. Natural history studies on the starfish Pisaster ochraceus (Brandt, 1835) in the Monterey Bay area. Doctoral dissertation, Stanford University.
Related Publication	Feder, H.M. 1959. The food of the starfish Pisaster ochraceus along the California coast. Ecology 40:721-724.
Related Publication	Feder, H.M. 1970. Growth and predation by the ochre sea star, Pisaster ochraceus (Brandt), in Monterey Bay, California. Ophelia 8:161-185.
Related Publication	Pearse, J.S., K.E. Vicknair, J.B. McClintock, and H.M. Feder. 2009. Long-term population changes in sea stars at three contrasting sites. In Echinoderms 2006: Durham. L.G. Harris, S.A. Boetger, C.W. Walker, and M.P. Lesser, eds., Proceedings of the 12th International Echinoderm Conference, 7-11 August 2006, Durham, New Hampshire, U.S.A. CRC Press.
Related item	Title Hopkins Marine Life Observatory project description
Location	https://purl.stanford.edu/wc313bt2358

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Preferred Citation: Pearse, John S. and Howard M. Fodor (1954-1955, 1986- ). Count & Biomass of Ochre Sea Stars, Pisaster ochraceus at HMS. Stanford Digital Repository. Available at http://purl.stanford.edu/wc313bt2358

Hopkins Marine Station Collection

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