Table 5.

Genotypic differentiation (below main diagonal) and genic differentiation (upper main diagonal) with exact G tests among I. boliviensis population pairs (eight populations) sampled in Bolivian rivers for 10 nuclear microsatellite markers. 1 = Middle Mamoré River population (Porvenir, Bellaunión, Cerrito, mouth of Iruyañez River with Mamoré River), n = 12; 2 = Bolivar population (Mamoré River), n = 3; 3 = El Corte population (Mamoré River), n = 6; 4 = El Azul population (Iténez River), n = 2; 5 = San Martín River population (Iténez River), n = 2; 6 = Securé River (Mamoré River), n = 3; 7 = Upper Ibaré River (Mamoré River), n = 3; 8 = Mouth of Ibaré River with Mamoré River (Mamoré River), n = 30; * p < 0.05; ** p < 0.001; n = sample sizes.

Population Pairs	1	2	3	4	5	6	7	8
1		0.9808	0.1499	0.0978	0.4787	0.5674	0.6324	0.0010 **
2	0.9869		0.6750	0.2712	0.0672	0.1923	0.2408	0.3624
3	0.3142	0.6908		0.0447 *	0.0094 *	0.0555	0.0975	0.00005 **
4	0.6932	0.5617	0.3706		0.3157	0.1647	0.1349	0.00001 **
5	0.6149	0.2347	0.0537	0.8844		0.2756	0.3122	0.0048 *
6	0.7501	0.2282	0.0980	0.3219	0.2960		0.9991	0.0189 *
7	0.6738	0.7128	0.3626	0.6721	0.6619	1.0000		0.4314
8	0.0051 *	0.4075	0.0008 **	0.1348	0.0396 *	0.0355 *	0.8117