USFWS proposes downlisting razorback sucker
The U.S. Fish and Wildlife Service is proposing to downgrade a Colorado River fish, the razorback sucker, from “endangered” to “threatened.” The razorback sucker was listed as endangered in 1991 due to habitat loss and predation by introduced exotic species. Wildlife officials say the population has recovered to tens of thousands of fish in the Green, San Juan, and Colorado rivers, meeting the criteria for downlisting. However, the Fish and Wildlife Service acknowledges many razorback suckers born in the wild do not reach adulthood.