. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Benthic Faunal Studies 29 identified sea anemone (1), sipunculid (1), phoronids (11), and an ophiuroid (1). A total of 78 species were collected during years of study of which 49 (63%) were polychaetes, 13 (17%) were mollus- cans, 9 (12%) were crustaceans, and the remaining 7 (8%) were sea anemones, turbellarians, nemerteans, sipunculids, phoronids, and echinoderms. The curve for the number of specimens collected each sampling period lagged the species curve during the first year (Fig. 2).
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Benthic Faunal Studies 29 identified sea anemone (1), sipunculid (1), phoronids (11), and an ophiuroid (1). A total of 78 species were collected during years of study of which 49 (63%) were polychaetes, 13 (17%) were mollus- cans, 9 (12%) were crustaceans, and the remaining 7 (8%) were sea anemones, turbellarians, nemerteans, sipunculids, phoronids, and echinoderms. The curve for the number of specimens collected each sampling period lagged the species curve during the first year (Fig. 2). A sharp decrease occurred between August 1960, and January 1961. This decrease was primarily the result of near disappearance of the poly- chaete Euchone limnicola Reish. The number of specimens taken the last two sampling periods were nearly identical. The growth of the animals proceeded slowly as indicated by the curve for biomass (Fig. 2). The drop in biomass following the peak in August 1960, is again the result of the decrease of Euchone limnicola. NUMBER OF SPECIES SPECIMENS & BIOMASS FROM THE CHANNEL OF ALAMITOS BAY MARINA. Figure 3. Graphic representation of the number of species, the number of speci- mens, and the biomass in grams collected each survey from the marina channel stations J, K, and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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