. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 316 F. A. BROWN, JR. AND Y. H. PARK as that which was present when initially North-directed but has become temporally displaced by 180° and has a slightly greater amplitude. Again is evident the quite different situation for the initially South-directed worms where the pattern shows a strong tendency to repeat the same form and lunar phase relationships after the 180° rotation to North and even to have essentially the same mean amplitude of variation (Fig. 3B). DISCUSSION The form and the phase relations of the monthly varia
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 316 F. A. BROWN, JR. AND Y. H. PARK as that which was present when initially North-directed but has become temporally displaced by 180° and has a slightly greater amplitude. Again is evident the quite different situation for the initially South-directed worms where the pattern shows a strong tendency to repeat the same form and lunar phase relationships after the 180° rotation to North and even to have essentially the same mean amplitude of variation (Fig. 3B). DISCUSSION The form and the phase relations of the monthly variation in turning of the initially North-directed worms resemble closely the pattern that has existed stead- ily over a continuous five-year investigational period (Brown, 1962a, 1963; Brown and Park, unpublished observations). The variation is overt during Autumn and Winter but in Spring and Summer becomes somewhat obscured by greater variance of the samples. It is, however, readily evident during the latter two seasons as mean monthly cycles of the same gross form and phase relations but of significantly decreased amplitude. The striking phase-shift of the monthly pattern observed after the initially North-directed worms were rotated to South resembles a comparably altered monthly-pattern phase-shift previously reported to follow an abrupt experimental 2°c 2 £ Zf VJ- NM. 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 Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
