. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. HYPOSMOTIC STRESS IN LUIDIA 23 stressed animals or the controls in the experiment. The volumes of hyposmotically stressed animals at day 1 were greater than initially (Fig. 1). Subsequently, the per cents of initial volumes declined with time. The per cents of initial volumes of the animals at ambient salinity were close to lOO'/k throughout the experimental period, indicating no significant volume changes. The per cents of the initial volume values of the two groups were significantly different at the 95% level at day 1 but
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. HYPOSMOTIC STRESS IN LUIDIA 23 stressed animals or the controls in the experiment. The volumes of hyposmotically stressed animals at day 1 were greater than initially (Fig. 1). Subsequently, the per cents of initial volumes declined with time. The per cents of initial volumes of the animals at ambient salinity were close to lOO'/k throughout the experimental period, indicating no significant volume changes. The per cents of the initial volume values of the two groups were significantly different at the 95% level at day 1 but not at subsequent times. The hyposmotically stressed animals did not right themselves within 10 minutes at the end of day 1 (Fig. 2). The activity coefficients of the hyposmotically stressed animals increased subsequently and became similar to initial levels, in- dicating recovery of functional well-being. 500-. T Control Hyposmotic 4 6 Days 8 10 FIGURE 2. Changes with time of the activity coefficients of Luidia clathrata maintained at control (ambient) salinity (27c/f(} and at hyposmotic salinity (\6%e). Points represent means (n = 5) except for hyposmotically stressed animals at day 2; vertical lines represent ± 1 The exception is a median value as one individual failed to 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
