such as the Shellmouth Reservoir and Portage Diversion were built. Looking specifically at the Assiniboine River at Portage La Prairie, where maximum river flows occur prior to historical spillovers (prior to construction of the Portage Diversion and the Lower Assiniboine River Dikes) into the watersheds of Lake Manitoba and the La Salle River, the top 10 calculated natural peak flow rates before construction of the current flood infrastructure are: Fauna Fish species include walleye, yellow perch, northern pike, mooneye, burbot, channel catfish brown bullhead, rock bass, white sucker, shorthead redhorse and common carp. See also List of longest rivers of Canada List of rivers of Manitoba List of rivers of Saskatchewan References External links Fish Species of Saskatchewan Encyclopedia of Saskatchewan Rivers of Manitoba Rivers of Saskatchewan Tributaries of Hudson Bay Tributaries of the Red River of the North Assiniboia, Winnipeg