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COSEWIC Assessment and Update Status Report on the Copper Redhorse in Canada

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COSEWIC
Assessment Summary

Assessment Summary – November 2004

Common name:
Copper Redhorse

Scientific name:
Moxostoma Hubbsi

Status:
Endangered

Reason for designation:
This species is endemic to Canada where it is now known from only three locations in southwestern Quebec that possibly represent a single population. The distribution and abundance of the species have been severely reduced due to a number of anthropogenic factors (e.g., urban development, agricultural practices, and the construction of dams) that have contributed to a decrease in water quality and habitat availability. The recent introduction of exotic species such as zebra mussel may further impact habitat quality.

Occurrence:
Quebec

Status history:
Designated Threatened in April 1987. Status re-examined and designated Endangered in November 2004. Last assessment based on an update status report.