Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: The interstitial meiofaunal associations of two physically different areas of a Monterey Bay sandy beach
Student Author(s): Wells, Edwin A., III
Faculty Advisor(s): Lee, Welton
Pages: 27
Location: Final Papers Biology 175H
Date: June 1972
Keywords: sandy beaches
Abstract: Counts made from coure samples of interstitial meiofauna, taken two weeks apart, at high and low tide each time, on exposed and protected transects of a long beach, indicate that on both transects the meiofauna maintained stable ranges and associations. Meiofauna of both transects included oligochaetes and collembolids on the high beach, harpacticoid copepds on the midbeach, archiannelids on the low beach, and nematodes and turbellarians at all levels. The exposed transect also contained ostracods (midbeach) and nereid polychaetes (low beach). Nematodes predominated numerically at all except the highest and lowest sampling sites. Within their broad ranges the meiofauna were patchily distributed. On the protected transect, each site contained about on equal number of meiofauna. On the exposed beach, meifauna were most abundant at mean high water. Overall meiofaunal distribution correlated neither with macrofaunal distribution, nor with zones of stress associated with surf or tidal action. This, and their patch microdistribution, suggest that meifauna may be distributed according to microhabitat differences as much as by macroscopic influences.