Figure 6.

Results of analysis, using LinkNe, of a sample of red drum juveniles from Matagorda Bay, TX. (a) Trend line (dashed) for N_e produced using all sampled individuals and confidence interval (CI) of N_e when F₁ hatchery individuals are removed (shaded area). Note that when ‘wild' individuals are assessed, only the lower bounds of the CI are estimable from the data; for clarity, the CI is truncated at 10 000. (b) Trend line for F₁ hatchery-raised individuals, indicative of a large decline in N_e in the parental generation that consisted of hatchery brood stock.