Wisconsin Department of Natural Resources officials say sturgeon spawning on the Wolf River in eastern Wisconsin could begin later Monday or Tuesday.
Spawning had been delayed because of the cold spring, but Warden Supervisor April Dombrowski, of Oshkosh, said Monday in a news release that the warm weekend had heated the water and made conditions nearly ideal for spawning.
Dombrowski says sturgeon guards are being asked to report for their assigned shifts starting at 7 a.m. Tuesday. The volunteer guards keep watch as the fish make their annual spawning run up the river. Guards don't stop poachers, but they observe, collect information and call wardens, if needed.