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Figure 4


Fig. 4. Effects of fluid shear on fertilization success. Egg concentration was held constant (103 cells ml–1), and three sperm concentrations were assayed in separate tests (see text for details). Fertilization is described as a function of log-shear, using least-squares regression to identify the best fits (106 sperm ml–1: y=83–7log10(x), r2=0.76, F1,83=166.1, P<0.001; 105 sperm ml–1: y=42.6–12.2log10(x), r2=0.81, F1,88=151.7, P<0.001; 104 sperm ml–1: y=17.9–5.7log10(x), r2=0.80, F1,87=157.7, P<0.001). Each symbol is a mean ± s.e.m.; error bars are smaller than symbol sizes in some cases.





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