US fish moves from endangered to threatened after population hits 36,000

US Fish and Wildlife Service has announced that the species will no longer be listed as endangered. Instead, it has been reclassified as threatened under the Endangered Species Act.Government agencies, tribal groups, conservation programmes, researchers and private organisations worked together for years to increase the fish's numbers and improve its habitat.Although the species has shown strong signs of recovery, officials say it still faces several long-term threats and continues to need legal protection.The US Fish and Wildlife Service finalised the new rule on July 16. Along with changing the fish's status from endangered to threatened, the agency also introduced a rule under Section 4(d) of the Endangered Species Act. This rule allows certain limited activities involving the fish when they are directly linked to conservation efforts.A fish found only in Colorado RiverThe razorback sucker is one of the largest sucker fish species in North America.