Lake Herring (Coregonus artedi)
Identifying characteristics: To dorsal fins including one adipose fin, pointed snout with long lower jaw, long cylindrical body.
Lake Sturgeon (Acipenser fulvescens)
Identifying Characteristics: Most notable characteristic is the 5 rows of bony plates (scutes) that become less distinguishable in adults. Lake
sturgeons have a large protrusible, suctorial mouth on the bottom side of the head with 4 barbels in front of the mouth and beneath the
snout. Lake sturgeons have a single dorsal fin located far back near the caudal (tail) fin. The tail is heterocercal with the upper lobe much
larger than the rounded lower lobe. Lake sturgeon have no simple scales, the body is covered by dermal denticles on tough skin. Juvenile
lake sturgeon are a sandy brown color with black blotches, while adults are olive-brown to grey with white underneath and lacking black
blotches.
Lake Trout (Salvelinus namaycush)
Identifying characteristics: Two dorsal fins including one adipose fin, light spots on darker gray background, lower fins edged with white, tail
forked, 11 rays in anal fin.
Lake Whitefish (Coregonus clupeaformis)
Identifying characteristics: Two dorsal fins including one adipose fin, blunt nose, fins clear or nearly so, greenish brown back, silver sides.
Largemouth Bass (Micropterus salmoides)
Identifying characteristics: Two dorsal fins with a deep notch between spinous and soft-rayed portions, body longer than deep, upper jaw
extends beyond rear of eye, dark lateral streak.
Longnose Gar (Lepisosteus osseus)
They are olive-brown or deep green along the back and upper sides, with silver-white bellies. There are a few irregular, large dark spots on
the body. The young display scattered spots over both sides, the upper and lower jaws and on their ventral fins. The longnose is generally
distinguished from other gars by its longer, more slender body, and especially by its longer, narrower snout. The snout is twice the length of
the rest of the head.
Muskellunge (Esox masquinongy)
Identifying characteristics: Single dorsal fin, upper half of cheek and gill cover has scales, body and dorsal fin have dark spots on lighter
backgrounds.
Northern Pike (Esox lucius)
Identifying characteristics: Single dorsal fin, light colored spots on darker body, upper half of gill cover and entire cheek has scales.
Pink Salmon (Oncorhynchus gorbuscha)
Identifying characteristics: Two dorsal fins including one adipose fin, dark mouth and gums, large oval black spots on tail and back (lake-run
mostly silver), 13-17 rays in anal fins.
Rainbow Trout (Oncorhynchus mykiss)
Identifying characteristics: Typical trout-shape with an adipose fin, and a squarish tail that has black spots throughout. The rainbow trout
has 10-12 anal rays and a white mouth and gills,
Freshwater Fish Identification 3
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