pdf version - South Dakota Department of Game, Fish and Parks

Sauger
Sander canadensis
Quick key characteristics: The sauger is found in primarily cool-water
habitats. Its scales are moderate in size and readily visible. It has two,
separated and elongated dorsal fi ns, one (in front) with sharp spines instead
of rays. Its second dorsal fi n has one spine and the anal fi n has two. It has a
large, forward-facing mouth that extends backward to near the rear margin of
the pupil of the eye, large jaw teeth, and a pointed snout. Its body is tubular.
Similar species in South Dakota: walleye, saugeye
Identifi cation: The combination of (1) a more slender body, (2) rows of dark
spots on fi rst dorsal fi n, and (3) two dark bands on second dorsal fi n (which
is relatively short) help distinguish the sauger from walleye. However, these
species may hybridize in nature, making visual identifi cation impossible.
Range: The sauger is native to central North America. It is widespread in
South Dakota, primarily in larger rivers and lakes, and relatively abundant
(compared to walleye) in swifter and more turbid water.
Items of interest:
• Feeds primarily on fi shes, insects, and crustaceans
• May undergo extensive upstream spawning migrations during spring
to fi nd suitable riffl es with clean gravel in larger streams or may
congregate on wind-swept beaches of
impoundments
• Avoids bright light due to sensitive
eyes, well adapted for feeding in deep
or turbid water or during the dark of
night
• May exceed 30 in. and 10 lbs.
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