Table 2.

Macrogeographic patterns of population differentiation in beluga whales in the north Pacific Ocean: (A) within mitochondrial DNA and (B) across eight microsatellite loci. Values for the frequency-based statistic, F_st, are below the diagonal, values for the distance-based statistic, Φ_st (mtDNA) and R_st (nDNA), are above the diagonal. All P-values from homogeneity tests, based on 50,000 permutations, were significant at p<0.0001. n denotes sample size.

A. Mitochondrial DNA
	Gulf of Alaska	BCB Seas	Sea of Okhotsk
n =	141	1136	192
Gulf of Alaska		0.163	0.321
Bering-Chukchi-Beaufort Seas	0.188		0.105
Sea of Okhotsk	0.285	0.079
B. Microsatellites
	Gulf of Alaska	BCB Seas	Sea of Okhotsk
n =	86	939	15
Gulf of Alaska		0.093	0.125
Bering-Chukchi-Beaufort Seas	0.049		0.112
Sea of Okhotsk	0.083	0.070