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Distribution of Fishes in the Red River of the North Basin on Multivariate Environmental Gradients

Species Associations of Stream Fishes


Table 6. Scores of 27 streams on principal components axes 1-5 (PC1-PC5) and percent of total variance in species richness explained by each PC axis.

StreamPC1PC2PC3PC4PC5
Red River0.2850.4630.0810.148-0.163
Pembina River-0.0350.1800.1830.1530.146
Tongue River-0.369-0.2930.1290.0260.120
Park River-0.1110.1060.157-0.0850.218
Forest River-0.0940.2900.112-0.0970.301
Turtle River-0.1810.1590.126-0.2500.093
Goose River0.0140.0870.212-0.071-0.146
Elm River-0.4820.036-0.063-0.138-0.047
Rush River-0.3080.2250.059-0.1240.034
Maple River-0.1690.320-0.0330.1570.223
Sheyenne River0.4980.313-0.0390.151-0.008
Wild Rice River, ND-0.2300.221-0.182-0.096-0.161
Bois de Sioux River-0.0370.297-0.3230.064-0.341
Mustinka River-0.448-0.045-0.374-0.006-0.053
Rabbit River-0.4550.033-0.3070.009-0.099
Otter Tail River0.7320.034-0.3270.2480.220
Pelican River0.334-0.348-0.438-0.2760.246
Buffalo River0.547-0.1770.035-0.184-0.213
Wild Rice River, MN0.4550.0000.144-0.248-0.053
Sandhill River-0.103-0.0040.341-0.170-0.098
Red Lake River0.584-0.1400.1560.1960.066
Clearwater River0.477-0.369-0.045-0.212-0.020
Snake River-0.403-0.336-0.0050.2270.051
Middle River-0.334-0.4310.1010.207-0.049
Tamarac River-0.339-0.3200.0620.143-0.031
Two River-0.116-0.0430.0740.0630.006
Roseau River0.286-0.2580.1670.166-0.243
% of total variance
(cumulative in parentheses)
26.9
(26.9)
12.3
(39.2)
7.9
(47.1)
5.4
(52.5)
5.1
(57.6)

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