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Comparison of plasma 11-kt concentrations in male zebrafish from Experiment II between (A) control and exposed, outbred and inbred fish (n = 20), and (B) the most and least reproductively successful male zebrafish, split by treatment group and degree of inbreeding (n = 9). Reproductive success was determined by the number of offspring sired by each male within each spawning group. Different letters denote significant differences between treatment groups.
