Sure, the news from the U.S. Fish and Wildlife Service arrived just a little late for Manatee Appreciation Day — but it's unlikely the gentle finned blimp will be too upset about the belated gift: The announcement that the agency is removing the West Indian manatee from the list of endangered species is welcome, no matter when it arrives.In some ways, this moment marks nothing less than a "success story" for the giant marine mammal, which roams from the Southeastern U.S. into the Caribbean. That's what Phil Kloer, spokesman for the agency, tells Reuters."It has been doing very well," Kloer says. "It has been coming back.""While there is still more work to be done to fully recover manatee populations, particularly in the Caribbean, manatee numbers are increasing and we are actively working with partners to address threats," the agency's acting director, Jim Kurth, said in a statement.The FWS says there are about 6,620 manatees in Florida waters now, the third straight year the agency has recorded numbers above 6,000. The agency attributes the comeback partly to the establishment of sanctuaries, the retrofitting of locks and levees, and regulations to reduce boater collisions.So, great news ... right?Many conservationists argue the manatee's reclassification from "endangered" to "threatened" under the Endangered Species Act is far from the unalloyed victory it may appear to be."We believe this is a devastating blow to manatees," Patrick Rose, executive director of the Save the Manatee Club, said in a statement: