. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. CLONAL AGGREGATIONS OF AN ANEMONE 69 days when the pedal discs of the anemones had become attached to the substratum, the pins attaching the anemones to the foam plastic sheet were removed as was the barrier between the clones. The animals that released their footholds on the substratum during the rest of the experiment were removed from the dish on the assumption that such animals would have been removed by wave action under field conditions. Photographs were taken from a fixed position above the dish once a day. The positi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. CLONAL AGGREGATIONS OF AN ANEMONE 69 days when the pedal discs of the anemones had become attached to the substratum, the pins attaching the anemones to the foam plastic sheet were removed as was the barrier between the clones. The animals that released their footholds on the substratum during the rest of the experiment were removed from the dish on the assumption that such animals would have been removed by wave action under field conditions. Photographs were taken from a fixed position above the dish once a day. The position of the anemones at the beginning of the experiment just after the barrier 'O^rS^r^n <5?£pmQ. FIGURE 2. The position of anemones from Clone 3 and Clone 4 just after the barrier be- tween the two groups was removed (right) and 14 days after the barrier was removed (left), (see text for details). was removed and their position 16 days later are shown in Figure 2. The outlines of the oral discs exclusive of tentacles are shown here, and the outlines of the anemones from Clone 3 are shown stippled. Under these conditions an anemone-free zone was formed between the two clonal groups within three weeks (Fig. 2, left). During this time numerous aggressive episodes (Francis. 1973) were observed at the border between the two groups. (This was not observed during the previous experiment, which was con- ducted before I discovered the aggressive behavior of this animal.) Apparently then, clonal isolation as well as clonal segregation be actively accomplished by the 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-; Re
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
