Spawning Walleye are netted and brought to shore.
Then they are milked for eggs and sperm, which are mixed together before being transferred back to the hatchery.
The length and weight are recorded and the fish are tagged before being released back into the river.
Back at the ponds, the eggs are incubated in circulating water for 40-45 days before hatching. The young fry are then raised to fingerlings in the ponds and released into area rivers and lakes.