Extended Data Fig. 2: Effects of selection treatments on reproduction and growth.

a Fish weight at final sampling (n = individuals in Period 1: Down = 30, Control = 30, Up = 27; and in Period 2: Down = 48, Control = 48, Up = 43), and b growth rate (n = individuals in Period 1: Down = 30, Control = 30, Up = 27; and in Period 2: Down = 47, Control = 48, Up = 43), separated by phenotyping period (1 and 2). The fish in period 1 were sampled at 74–76 dpf and the fish in period 2 at 98–100 dpf (Supplementary Fig. 4). c All weight measurements fitted with local polynomial regression (loess) (n = individuals: Down = 78, Control = 78, Up = 70). d Number of eggs from all spawning attempts including additional rounds of reproduction of the Down-selected lines. The means and standard error are presented for the successful boxes (n = spawning boxes with eggs: Down = 12, Control = 12, Up = 11), excluding boxes with zero eggs represented as crosses (n = spawning boxes without eggs: Down = 31, Control = 3, Up = 3).