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Figure 1


Fig. 1. Sperm motility initiation factor in Acropora species. (A) Sperm of A. digitifera, A. gemmifera and A. tenuis were completely quiescent even after sperm were split from bundles. Scale bar, 50 m. (B) Sperm motility of A. digitifera in artificial seawater (ASW), ASW containing 20 mmol l-1 NH4Cl, Na-free ASW, and Na-free ASW containing 20 mmol l-1 NH4Cl. Other Acropora species also showed similar sperm motility. Values are mean ± s.d. N=5.