Description
Lake whitefish are similar in appearance to other whitefishes in the Coregoninae subfamily of the salmon family Salmonidae, such as the northern cisco (Corgenous artedi). As with all salmonids, they have an adipose fin. To the distinction from cisco, the lake whitefish has a snout which overhangs the short lower jaw, so that the mouth opens in a slightly inferior position. Thus the fish can feed on the bottom of lake beds or grab food particulates out of the water or from the surface of a water body. The cisco in turn has a short snout with a lower jaw that extends beyond the snout. Both the cisco and lake whitefish are discernible from the mooneye due to the small posterior dorsal adipose fin. Another notable feature of the lake whitefish is the presence of two small flaps in each nostril. Their coloration is typically silver to white with an olive to pale-green or brown dorsal hues. The ventral fins are white and the tail has a dark posterior edge. The tail fin of the lake whitefish is severely forked, making it a fast swimmer.
Lake whitefish from inland lakes can reach a weight upwards of 5 pounds (2,300 g) (the largest lake whitefish was caught in Leech Lake and weighed in at over 12 pounds (5,400 g)). On average, the lake whitefish weighs only 4 pounds. They can grow to 31 inches (79 cm) and commonly reach 20 inches (51 cm).
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