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

Catostomidae

Quillback

Carpiodes cyprinus (Lesueur), the quillback, was not collected by early investigators from streams in the Red River basin. However, Surber (1920) listed C. thompsoni as an important species in the Red Lake commercial fishery, and Eigenmann (1895) listed C. velifer from the Red River at Winnipeg. The quillback has been reported primarily from the Red and Red Lake Rivers and the lower reaches of the Otter Tail River (Figure A9). The quillback has been reported from 10% of stream sites sampled in the Red River basin since 1962, but has preferred reaches in the RRV ecoregion, where it has been taken at 20% of the sites (Table 4).

Figure A9. Distribution of the the quillback in streams of the Red River of the North basin.

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