Displaying items by tag: cumberland county drought

Tennessee Aquarium VP and Chief Conservation and Education Officer Dr. Anna George, right, and U.S. Fish and Wildlife Service Conservation Delivery Coordinator Geoff Call collect critically endangered laurel dace from a stream ravaged by a prolonged drought on the Cumberland Plateau. The rescue successfully relocated 105 adults into human care at the Tennessee Aquarium Conservation Institute’s headquarters near downtown Chattanooga.  Photos by Doug Strickland/Tennessee Aquarium

Drought prompts emergency rescue of one of America’s most endangered aquatic species

Casey Phillips is a writer for the Tennessee Aquarium.

CHATTANOOGA — Few things trigger louder or more distressing alarm bells among freshwater biologists than watching a waterway dry up during a severe, prolonged drought. That’s especially true when the disappearing stream is home to one of America’s most imperiled fish.

In late July, reports of dramatically withered streams atop Walden Ridge north of Chattanooga spurred an emergency rescue operation to prevent the extinction of the federally endangered laurel dace, which scientists consider to be among the 10 most at-risk fish in North America.

This effort was carried out by representatives from the Tennessee Aquarium, the U.S. Fish and Wildlife Service, and the University of Georgia’s River Basin Center in coordination with the Tennessee Wildlife Resources Agency. In all, 105 adult laurel dace were removed from dangerously dry streams and successfully relocated to the Tennessee Aquarium Conservation Institute (TNACI) near downtown Chattanooga.

All but one of the collected fish survived the relocation and are now thriving in temporary human care, where they will remain until conditions in their few native streams are sufficiently improved for them to be returned safely.

This laurel dace (Chrosomus saylori) was among dozens other collected from a stream on Walden Ridge north of Chattanooga to save the fish from drought. In the last 12 years, this minnow’s range has drastically dwindled to just two streams, and scientists consider it one of North America’s 10 most imperiled fish species.