. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. •IPLYSIA GROWTH AND REPRODUCTION 411 1200- wt g 800 400-. 0 N D FIGURE 2. Average weights of specimens of A. californica collected at each study site, plotted by month. S. 1 : Site 1; S. 2: Site 2. The upper of the two numbers associated with each data point is the total number of animals collected during that particular month throughout the study period. The lower number is the number of years in which samples were collected during that month. Only months in which six or more specimens of A. cali- jornica were collecte
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. •IPLYSIA GROWTH AND REPRODUCTION 411 1200- wt g 800 400-. 0 N D FIGURE 2. Average weights of specimens of A. californica collected at each study site, plotted by month. S. 1 : Site 1; S. 2: Site 2. The upper of the two numbers associated with each data point is the total number of animals collected during that particular month throughout the study period. The lower number is the number of years in which samples were collected during that month. Only months in which six or more specimens of A. cali- jornica were collected are graphed. paired /-test on the average weights for the ten individual months in which more than six animals were collected at each site (two-sided paired f-test; t = , P < ). The two study sites differed in the availability of food algae readily consumed by Aplysla. Site 1 was dominated by beds of the surfgrass Phyllospadix to a depth of about 3 m. This plant is not normally consumed by Aplysla (Winkler and Dawson, 1963; personal observation). Below 3 m, the giant kelp Macrocystls predominated. Numerous other algal species were present on the rocky substrate including several which have been reported to serve as food for Aplysla (Leighton, 1966). Of these, only two were readily consumed under laboratory conditions. Laurencia and Plocanrium. Neither of these algae was abundant at Site 1. Site 2 supported (among many other algal species) large beds of Plocamiwn between the depths of 1 and 4 m. Below7 this depth, Macrocystls 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Cl
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
