Fig. 3From: Cardiac physiology and metabolic gene expression during late organogenesis among F. heteroclitus embryo families from crosses between pollution-sensitive and -resistant parentsExposure to diluted sediment extracts cause developmental delays, heart rate changes, and deformities in sensitive embryos from King’s Creek, VA. a Developmental delay of sensitive embryos exposed to differently diluted Elizabeth River sediment extracts (n = 15 per exposure condition). Embryos exposed to 1:10 and 1:5 diluted sediment extracts showed delayed development. Stages were determined after 10 days and 16 h post-fertilization. b Heart rate differences among sensitive embryos exposed to differently diluted Elizabeth River sediment extracts (n = 10 per exposure condition). Heart rates were determined at stage 31. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001Back to article page