Fig. 4
From: Swimming exercise to control precocious maturation in male seabass (Dicentrarchus labrax)

Effects of swimming training on plasma 11-ketotestosterone (11-KT) levels in juvenile male seabass at week 10. Resters (N = 9) and swimmers (N = 7) which swam at Uopt during a 10-week period in the swim flume. Bars represent the mean ± SD