. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 30 20 N 10 4 6 8 1O 12 14 prey length (cm) A. elegantissima all prey .mussels 0 3 6 9 12 15 18 prey length (mm) 21 N 25 20 15 10 5 0 amphipods all prey A. elegantissima solitary (>6cm) Pollicipes. 0 2 4 6 8 10 12 prey length (cm) 500 N 300 100 0 M. senile cypnds 0 246 prey length (mm) FIGURE 8. Size distribution of prey in coelenteron content samples. Mussels captured by A. xan- thogrammica (mean length (L) = ± cm SD, N = 481 anemones, 122 prey), mussels_ in the adjacent mussel bed (L = ± cm SD, N = 316 mu
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 30 20 N 10 4 6 8 1O 12 14 prey length (cm) A. elegantissima all prey .mussels 0 3 6 9 12 15 18 prey length (mm) 21 N 25 20 15 10 5 0 amphipods all prey A. elegantissima solitary (>6cm) Pollicipes. 0 2 4 6 8 10 12 prey length (cm) 500 N 300 100 0 M. senile cypnds 0 246 prey length (mm) FIGURE 8. Size distribution of prey in coelenteron content samples. Mussels captured by A. xan- thogrammica (mean length (L) = ± cm SD, N = 481 anemones, 122 prey), mussels_ in the adjacent mussel bed (L = ± cm SD, N = 316 mussels), total prey items captured (L = ± cm SD, N = 481 anemones, 177 prey), prey captured by large solitary A. elegantissima in California (L = ± cm SD, N = 330 anemones, 136 prey, L = ± cm SD for mussel prey only, N = 99 prey), prey captured by clonal A. elegantissima (macroinvertebrates and zooplankters (L = ± mm SD, N = 112 anemones, 113 prey), M. senile prey (mostly zooplankters such as barnacle cyprids, copepods) L = ± mm SD, N = 107 anemones, 538 prey. Anthopleura xanthogrammica captures mussels, barnacles, and other inver- tebrates dislodged by wave action and by asteroid foraging (Dayton, 1973) as well as crabs, gastropods, and other motile prey (Table I). Zooplankton capture by adult A. xanthogrammica was not observed. Probability of prey contact for the three species of sea anemones depends on the projected surface area of the tentacle crown. The tentacles may act as filter elements to intercept zooplankton carried by currents (M. senile, A. elegantissima} (Rubenstein and Koehl, 1977) or as a target for intertidal prey dislodged by wave action and by predator activity (A. xanthogrammica, A. elegantissima) (Dayton, 1973; Sebens, 1977, in press). Anemone growth is close to isometric in A. xan-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - color
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
