The province has temporarily closed all commercial and recreational fishing in Lake Dauphin and its tributaries to protect spawning walleye.
Manitoba Conservation and Water Stewardship said Tuesday the walleye population in the lake has been rebuilding with support of Aboriginal rights holders, recreational anglers and commercial fishers, but an additional effort is necessary during the critical spawning period.
The temporary measures take effect immediately and will be in place until the completion of the walleye spawning period.
Aboriginal rights holders may continue to harvest all species of fish by angling only and must release all walleye between 45 and 70 centimetres in length.
The province said once it determines the spring walleye spawning has completed, it will lift the temporary conservation measures.