Main genetic variability measures for Portuguese coast Carcinus maenas populations.

N: sample size; Hexp: unbiased heterozygosity according to Hardy-Weinberg; Hobs: observed heterozygosity; N-all: mean number of alleles per locus and standardised genetic variance within populations (FIS) at each locus for each population; SD: Standard deviation.N：样本量；Hexp：基于哈迪-温伯格（Hardy-Weinberg）平衡的无偏杂合度；Hobs：观测杂合度；N-all：每个群体各基因座位的平均等位基因数，以及各群体各基因座位的种群内标准化遗传方差（FIS）；SD：标准差（Standard deviation）。