. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B Stage I 10 ppt acclimation. 90- 70- 50- 30- C Stage IV 20 ppt acclimation 10 30 50 Rate of salinity increase (ppt s"1 IO"3) Figure 2. The percentage of Rhillinipanopeus harrisii larvae aggre- gating in the upper section of the test chamber before stimulation (con- trol—dashed line) and after ppt salinity increase (experimental— solid line) for Stage 1 zoeae acclimated to 20 ppt (A), and 10 ppt (B), and Stage IV zoeae acclimated to 20 ppt (C). The average number of determinations for each rate was 5 and
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B Stage I 10 ppt acclimation. 90- 70- 50- 30- C Stage IV 20 ppt acclimation 10 30 50 Rate of salinity increase (ppt s"1 IO"3) Figure 2. The percentage of Rhillinipanopeus harrisii larvae aggre- gating in the upper section of the test chamber before stimulation (con- trol—dashed line) and after ppt salinity increase (experimental— solid line) for Stage 1 zoeae acclimated to 20 ppt (A), and 10 ppt (B), and Stage IV zoeae acclimated to 20 ppt (C). The average number of determinations for each rate was 5 and means and standard errors are plotted. The asterisks indicate the slowest rate (threshold) to induce a response that was -^niticantly (P < ) greater than the control. tributions pcus harrisii Stage 1—20 ppt Stage I— 10 ppt Stage IV— 20 ppt Neopanopi.' sayi Stage 1—28 ppt Stage IV— 28 ppt Salinity decrease R harrisii Stage 1—20 ppt Stage IV— 20 ppt N. sayi Stage 1—28 ppt Stage IV— 28 ppt The percentage of larvae in the upper section upon a simulated salin- ity increase and in the lower section with a simulated salinity decrease. Responses are shown before experimentation (control) and alter expo- sure to the maximum experimental flow rate (experimental) of acclima- tion salinity water through the test chamber. Experimental values were measured at the same time after the beginning of flow as measurements were made upon a real salinity change. The number of groups of larvae tested was 5 in all cases and means (m) and standard deviation (SD)are shown for arcsine transformed data. In no case was there a significant difference between the experimental and control Please note that these images are extracted from scanned page images that may have be
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
