Fisheries biologists with the Minnesota Department of Natural Resources are working to maintain walleye populations in the state, according to the St. Paul Pioneer Press. As part of the effort, scientists gathered brood stock from central Minnesota’s Diamond Lake in mid-May.
During the visit, biologists pulled up 11 nets trying to collect quality eggs to use in hatcheries. Only a few walleye turned up with each net, but there were enough to gather a quantity of usable eggs. Females with plenty of eggs were stored in one side of a divided, aerated tank while others that weren’t mature enough were thrown back.
“Walleye is the king of Minnesota, so a lot of walleye management does occur,” said Ryan Doorenbos, a fisheries supervisor from Windom, Minnesota, to the Pioneer Press.
Doorenbos says that Walleye in Diamond Lake, Rick Lake and Koronis Lake all maintain distinct genetic strains. One of his goals for those water bodies, as well as Lake Sarah that’s also in his district, is to create populations of walleye that can sustain themselves.