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Lake sturgeon congregate in the shallows of the Wolf River on April 14 near Shiocton. The fish are gathering in the area to spawn.
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.
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.
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 ...
The sturgeon which spawn annually in the springtime in the Wolf River and its parent, the Fox River, between approximately April 15 and May 5, as they swim upstream from Lake Winnebago. It is estimated that the extent of the Lake Sturgeon has dropped to about one-tenth of its population in the state since year 1800.
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.
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 ...
Warm February weather contributed to poor ice and a low sturgeon harvest for 2024, but the DNR says warm winters have more effect on spring spawning.