Scientists and students embarking on a census of Georgia lake sturgeon have found three females with mature eggs — an indication the armored “living fossils” may be reproducing in that state for the first time in a half-century.
species and subpecies found in the U.S., lake sturgeon live in 18 states and five Canadian provinces in the St. Lawrence, Hudson Bay, Great Lakes and Mississippi River watersheds, according to the U.S. Fish and Wildlife Service.Pollution, habitat destruction and harvesting for flesh and caviar have so diminished their numbers that the U.S. Fish and Wildlife Service is considering federal protection for the species.
By the 1970s, lake sturgeon had been wiped out of northwest Georgia's Coosa River basin — the only place where they were found in Georgia.The state Department of Natural Resources began reintroducing lake sturgeon 20 years ago, after the Clean Water Act cleaned up the river, Hamel said. The current population assessment is the largest since Georgia first collected eggs from fish in Wisconsin, raised them in a hatchery and released them into the Coosa in 2002. State natural resources staff, working with their Wisconsin counterparts, have done so nearly every year since.“It’s a big investment because you don’t even know if the stocked fish are going to survive, let alone grow up and reproduce,” Hamel said.
The students are catching as many lake sturgeon as they can to estimate population size, survival and growth rates. The project started in the spring. It will run through this summer and next spring and summer, finishing in winter 2023, Hamel wrote.“We have implanted 28 fish with telemetry tags thus far, and plan to implant 12 more in the coming months,” Hamel wrote.
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Prehistoric 'Living Fossils' Fish May Spawn in Georgia: 1st Time in 50 YearsScientists and students embarking on a census of Georgia lake sturgeon have found three females with mature eggs — an indication the armored “living fossils” may be reproducing in that state for the first time in a half-century.
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