Figure 2: Motility (a) and curvilinear velocity or VCL (b) of B. splendens sperm exposed to negative control conditions, one of two doses of the phytoestrogen genistein (3.7 nM or 3.7 μM), or the positive control gadolinium (100 μM). Sperm motility data were arcsin transformed prior to analysis. . Differences among treatments in VSL and VAP (not shown here; see text for descriptions) were similarly nonsignificant ( and 0.79, resp.).