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The Service found although lake sturgeon declined over the last century in parts of its range due to overexploitation and loss of access to spawning habitat, efforts such as fish stocking have ...
The lake sturgeon (Acipenser fulvescens), also known as the rock sturgeon, [7] is a North American temperate freshwater fish, one of about 25 species of sturgeon.Like other sturgeons, this species is a bottom feeder and has a partly cartilaginous skeleton, an overall streamlined shape, and skin bearing rows of bony plates on the sides and back.
Lake Sturgeon, Juvenile: Author: USFWS Mountain-Prairie: Licensing. Public domain Public domain false false: This image or recording is the work of a U.S. Fish and ...
Jul. 17—A milestone in the restoration of the Genesee River has been reached following the collection of a spawning female lake sturgeon in the lower Genesee River for the first time in more ...
In order for spawning to occur, water temperature should be above 17 °C (63 °F). Spawning normally lasts between nine and twenty-three days, but can continue past this as long as the water temperature remains below 22 °C (72 °F). [10] Free sturgeon embryos (the first interval of sturgeon after hatching) hide under rocks and do not migrate ...
Volunteers are needed to help protect lake sturgeon as they head to spawning sites on the Black River in Cheboygan County. ... Lake sturgeon can weigh up to 200 pounds and live to be 100 years old.
Commercial anglers considered lake sturgeon a nuisance because they tore their nets, leading to widespread over-harvesting in the 1800s that continued into the 20th century. Lake sturgeon can't reproduce fast enough to replace the losses. It takes up to three decades before they reach spawning age, and even then they don't spawn annually.
Fishing for lake sturgeon in Minnesota, Wisconsin and Michigan is not a threat to the ancient species, the U.S. Fish and Wildlife Service (FWS) concluded in its decision not to list the giant fish ...