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Blog

Tennessee Aquarium Partners to Release Brookies

leah kirk

Tennessee Aquarium Partners to Release Brookies.jpg

Chattanooga, Tenn. – For more than 130 years, the Southern Appalachian Brook Trout has constantly struggled to survive an ever-mounting combination of mostly human-induced threats. As a result, Tennessee’s only native trout species now occupies less than 15 percent of its historic range.

Since 2013, the Tennessee Aquarium and several partner organizations have worked together to propagate wild Southern Appalachian Brook Trout to help this beautiful fish reclaim some of its lost territories. On June 5, participants in this program celebrated the release of 280 juvenile trout into the chilly waters of Little Stony Creek in the Cherokee National Forest near Elizabethton, Tennessee.

“They don’t want to be in the really swift water,” says Meredith Harris, a reintroduction biologist at the Tennessee Aquarium Conservation Institute. “We want to give them the best chance of staying put, spreading out in the creek and finding good food and the resources they need to thrive.”

 “I think it’s the prettiest trout that we have,” Marcia Carter says. “Brook Trout are the only native trout species in Tennessee, so it’s important for us to maintain good populations to ensure their viability and also to provide recreational fishing for the public.”

The restoration program features the combined effort and resources of the Tennessee Aquarium Conservation Institute, U.S. Forest Service, Tennessee Wildlife Resources Agency and the Appalachian Chapter of Trout Unlimited. In the five years since the program’s inception, the Conservation Institute has hatched and released more than 1,400 of these distinctively olive-bodied, red-finned fish and pioneered new techniques for raising them.

“Working with the Tennessee Aquarium has been awesome since they provide facilities to raise the trout, so we can have even more fish to stock and have a faster restoration time,” Carter says. “Getting to work here with our partners doing Brook Trout restoration is just a happy day for me.”

With dappled sunlight streaming through a picturesque canopy of leaves, a team of reintroduction specialists spent a morning carefully navigating 600 meters of Little Stony Creek. Carrying bags of oxygenated water filled with the two- to three-inch fry, they clambered over algae-slick rocks and pushed up frothing rapids, stopping occasionally to hand-place juvenile trout where the stream slowed into calmer, deeper pools.

These tiny fish were the first releases that were hatched and raised in the propagation room at the Conservation Institute’s new freshwater science center on the banks of the Tennessee River. Thanks to this purpose-built facility’s improved drainage, waterproofing and temperature controls, the fish can be raised more efficiently and in greater comfort, says Dr. Bernie Kuhajda, the Aquarium’s manager of science programs.

“Previously, our propagation facility was in a warehouse that was not constructed for aquaculture,” Dr. Kuhajda says. “The ease and convenience of propagating this species now is immense compared to before. It’s like we went from working in a cardboard box on the side of the road to the Taj Mahal. It was that big of a step up.”

For more information about the Aquarium’s work with Southern Appalachian Brook Trout, visit tnaqua.org/protecting-animals/southern-appalachian-brook-trout.