The impoundment, which is flooded to control mosquito populations, is nearly six square miles and is a poor long-term habitat for manatees.

ST. LUCIE COUNTY — St. Lucie County’s Mosquito Control District has completed repairs and reopened all of its properties on North Hutchinson Island as well as impoundment areas along the ...

Hurricane Irma repairs are underway along the Indian River Lagoon to keep mosquitoes from biting you. Crews are repairing the dike around the Bear Point Sanctuary, one of 20 mosquito impoundments ...

Mosquito-control efforts, however, resulted in 76 percent of those — 6,064 acres — being impounded. That left 1,836 acres available to the fisheries.