Distribution of Fishes in the Red River of the North Basin on Multivariate Environmental Gradients
Cyprinidae
Blackchin Shiner
Notropis hetrerodon (Cope), the blackchin shiner, was listed as Hybopsis heterodon by Olson (1932) from the Red Lake River above Crookston, where six specimens were collected (Figure A31). Deason and Nelson found the blackchin shiner in the Tamarack River, a tributary to Upper Red Lake (UMMZ 1994); and the species was collected in 1955 by BMNH (1994) at several sites in the eastern reaches of the basin. Recent collections are almost entirely from the Otter Tail, Pelican, Buffalo, and Wild Rice Rivers, where it has been present at 36% of stream sites sampled in the NLF ecoregion since 1962 (Table 4). The blackchin shiner has typically not been abundant in samples. Site collections have usually consisted of 3-6 individuals, but as many as 65 specimens have been taken at sites in the upper reaches of the Otter Tail River. A single record exists from the Sheyenne River drainage (NDGF 1994), where the species was collected from an unnamed spring creek in the glacial Sheyenne River delta. This is the only record of the blackchin shiner from western tributaries to the Red River.
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