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    Great Smoky Mountains

    National Park NC,TN

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Fisheries: June-July, 2009

Issue 4 > Resource Roundup > Fisheries
NPS and USGS biologists conduct DNA studies on Brook trout.

NPS and USGS scientists with Brook trout.

The Brook trout is back

Fisheries managers were busy in the field in June and July returning native Brook trout to their original streams. Last fall, managers removed Brook trout and other native fish from streams where introduced rainbow trout had taken over. They treated the water with an antibiotic called Antimycin, which is toxic to fish. In June, they checked the water to see if all of the rainbow trout were gone, and after finding a few survivors, treated the water again. Throughout July they trucked the brook trout from the stream where they had held them over the winter back to Lynn Camp Prong, their home stream. They placed bags of the fish in the water, then opened the bags and let the fish swim free. This reintroduction was part of an effort to restore Brook trout to the Smokies, where up to 90 percent of their population had disappeared. You can read more about this project and see photos in this issue’s NPS Profile: Return of the native Brook trout.

Return to Resource Roundup: June-July, 2009.

Did You Know?

Marbled salamanders are one of 30 salamander species native to the park.

There are at least 30 different species of salamanders in Great Smoky Mountains National Park. This gives the Smokies the distinction of having the most diverse salamander population anywhere in the world and has earned the park the nickname “Salamander Capital of the World.” More...