), and on January 4, 1974, the species was included in a final rule (39 FR 1158) establishing a list of endangered native wildlife at 50 CFR part 17. After a thorough review using the best available science, the Service today proposes to reclassify the humpback chub from endangered to threatened under the Endangered Species Act (ESA). A key Colorado River native fish has recovered enough to be moved off endangered … The humpback chub, which was placed on the endangered species list in 1973, is one of 43 endangered or threatened species in Arizona. By Associated Press & Luke Runyon • Jan 21, 2020 The U.S. “The humpback chub remains very much endangered,” Taylor McKinnon of the Center for Biological Diversity said in the release. This decision is based on a recent assessment that concluded the humpback chub is no longer in danger of immediate extinction because of ongoing recovery efforts. Fish and Wildlife Service is proposing to reclassify the endangered humpback chub as threatened. Humpback chub living in habitats with high pollution/pesticide levels have been found to have spinal deformities, although there is no data showing a direct correlation between the pollution/pesticide levels and the species deformities. The humpback chub is huge for a minnow, sometimes attaining 20 inches in length. The federally endangered humpback chub is a native fish of the Colorado River that evolved in the pre-dam environment over millions of years and has been able to persist for a half-century in the post-dam environment, alongside introduced non-native species including rainbow trout. Agency proposes to downlist humpback chub on the Colorado River, citing recovery efforts. Melanie Fischer / USFWS An endangered fish found in the Colorado River basin is on the upswing, federal officials said Tuesday as they proposed reclassifying the humpback chub as threatened. The proposal by the U.S.
668 aa) and the Endangered Species Act of 1973, as amended (16 U.S.C. The pronounced hump behind its head gives this fish a striking, unusual appearance. The humpback chub is an endangered, native fish of the Colorado River that evolved around 3-5 million years ago. Officials are focused on controlling the nonnative fish population and relocating humpback chub into other tributaries with suitable habitat to help maintain and grow the overall chub population. By Jessica Myers WASHINGTON – Federal officials said recovery efforts for the humpback chub have been so successful that the Colorado River fish can be downgraded from endangered to threatened, but some environmentalists worry that it may be too soon to make that move. An endangered fish found in the Colorado River basin is on the upswing, federal officials said Tuesday, Jan. 21, 2020, as they proposed reclassifying the humpback chub as threatened. FLAGSTAFF, Ariz. — An endangered fish found in the Colorado River basin is on the upswing, federal officials said earlier this month as they proposed reclassifying the humpback chub as threatened. In a recent analysis, scientists at the U.S. The largest population of humpback chub, over 12,000 fish in the Grand Canyon and Little Colorado River, has remained stable over the last 10 years. Even though the species is listed as endangered, populations of humpback chub are found in eight reaches of the Colorado River basin in western Colorado, Utah, and Grand Canyon.
After a thorough review using the best available science, the Service on Tuesday proposed to reclassify the humpback chub from endangered to threatened under the Endangered Species Act (ESA). The fish can …