Threatened Fish Pearl River

Ryan Lehman, a researcher for the University of Southern Mississippi, takes water samples and measures water chemistry and velocity to test for environmental DNA, in the Strong River, a tributary of the Pearl River, in Pinola, Miss., Monday, July 31, 2023. Biologists from the U.S. Fish and Wildlife, the Mississippi Department of Wildlife Fisheries and Parks, the University of Southern Mississippi, and the Garden Club of Jackson, released a brood of threatened pearl darter fish, which haven't lived in the Pearl River system for 50 years. (AP Photo/Gerald Herbert) MONDAY, JULY 31, 2023 PHOTO

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