White Sturgeon. Nothing compares to the thrill of fishing for a prehistoric monster known as White Sturgeon, the largest of North American sturgeon. They can be fished for year round and today in the Fraser River they range in size from 2-12 feet, and have been known to grow even larger. With weights in excess of 1000 lbs, fishing for this ’dinosaur’ can only be referred to as a chance to ’leash the beast!’ The lower and middle portions of the Fraser River watershed (which includes the Fraser River tributaries), from the Mission Bridge to and including Williams Lake River in the Cariboo Region, are the only fresh waters in B.C. where it is legal to fish for white sturgeon in a unique catch-and-release fishery. All other fresh waters in B.C. are closed to sturgeon fishing.