Inbreeding avoidance among spawning adults
Among the four potential relatedness estimators considered, the Queller
and Goodnight (1989) coefficient displayed the highest correlation
between observed and expected values of relatedness (Pearson’s
correlation coefficient = 0.924). Observed relatedness among parents
that were and were not assigned progeny was -0.00087 and 0.00015,
respectively (Figure 3 ). Expected levels of relatedness among
individuals that were and were not assigned progeny were -0.00059 (SD:
0.00260) and -0.00068 (0.00157), respectively (Figure 3 ).
Neither value of observed relatedness within a group was significantly
different than expected values (assigned progeny: p < 0.49 and
not assigned progeny: p < 0.46).