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New Hampshire

Freshwater Fishing

Freshwater Fishing

Fish Identification

Landlocked Atlantic salmon

Illustrated fish identification diagram of a landlocked Atlantic salmon, highlighting key features such as the upper jaw extending to the rear edge of the eye, a narrow caudal peduncle, and a grey to olive adipose fin that is never orange.
Image of a landlocked Atlantic salmon showing key identification features, including a long upper jaw that extends to the rear edge of the eye, a narrow caudal peduncle, and a grey to olive adipose fin.

Brown trout

Illustrated fish identification diagram of a brown trout, showing an upper jaw that extends well past the eye, a red-orange edged adipose fin, and a thick caudal peduncle.
Image of a brown trout showing key identification features, including an upper jaw that extends well past the eye, a red-orange tinged adipose fin, and a thick caudal peduncle.

Rainbow trout

Illustrated fish identification diagram of a rainbow trout, showing a pink lateral stripe along the body and profuse black spots on the fins and tail.
Image of a rainbow trout showing key identification features, including a pink stripe along the side of the body and numerous black spots on the fins and tail.

Brook trout

Illustrated fish identification diagram of a brook trout, showing red spots with blue halos, worm-like markings along the back, white leading edges on the fins, and a square tail.
Image of a brook trout showing key identification features, including red spots with blue halos, worm-like markings on the back, white leading edges on the fins, and a square tail.

Lake trout

Illustrated fish identification diagram of a lake trout, showing light-colored spots on a dark body, white leading edges on the fins, and a deeply forked tail.
Image of a lake trout showing key identification features, including light spots across a dark body, white leading edges on the fins, and a deeply forked tail.

American shad

Illustrated fish identification image of an American shad, showing a silvery body, deep shape, and forked tail commonly used to identify the species.
Image of an American shad showing key identification features, including a silvery, deep-bodied shape and a forked tail.

Rainbow smelt

Illustrated fish identification image of a rainbow smelt, showing a slender silvery body, large eyes, and a forked tail used to identify the species.
Image of a rainbow smelt showing key identification features, including a slender silvery body, large eyes, and a forked tail.

Chain pickerel

Illustrated fish identification diagram of a chain pickerel, showing dark chain-like markings on an olive-colored body and a fully scaled gill cover.
Image of a chain pickerel showing key identification features, including dark chain-like markings on an olive background and a fully scaled gill cover.

Northern pike

Illustrated fish identification diagram of a northern pike, showing light-colored, bean-shaped spots on an olive body and no scales on the lower half of the gill cover.
Image of a northern pike showing key identification features, including light-colored, bean-shaped spots on an olive background and an unscaled lower half of the gill cover.

Round whitefish

Illustrated fish identification image of a round whitefish, showing a silvery body, small head, and forked tail used to identify the species.
Image of a round whitefish showing key identification features, including a silvery body, small head, and forked tail.

Lake whitefish

Illustrated fish identification image of a lake whitefish, showing a silvery body, slightly arched back, and forked tail used to identify the species.
Image of a lake whitefish showing key identification features, including a silvery body, slightly arched back, and a forked tail.

White perch

Illustrated fish identification image of a white perch, showing a silvery body with faint dark stripes, a deep body shape, and a spiny dorsal fin.
Image of a white perch showing key identification features, including a silvery body with faint horizontal striping, a deep body shape, and a spiny dorsal fin.

Yellow perch

Illustrated fish identification image of a yellow perch, showing a yellow-gold body with dark vertical bands and a spiny dorsal fin.
Image of a yellow perch showing key identification features, including a yellow-gold body with dark vertical bands and a spiny dorsal fin.

Walleye

Illustrated fish identification image of a walleye, showing an olive-gold body, large reflective eyes, and a spiny dorsal fin used to identify the species.
Image of a walleye showing key identification features, including an olive-gold body, large reflective eyes, and a spiny dorsal fin.

Pumpkinseed

Illustrated fish identification image of a pumpkinseed sunfish, showing a colorful orange and blue body, rounded shape, and distinctive ear flap.
Image of a pumpkinseed sunfish showing key identification features, including a bright orange and blue body, a rounded shape, and a distinctive ear flap.

Brown bullhead (Horned pout)

Illustrated fish identification image of a brown bullhead (horned pout), showing a stocky body, smooth scaleless skin, rounded tail, and prominent whisker-like barbels around the mouth.
Image of a brown bullhead (horned pout) showing key identification features, including whisker-like barbels, a smooth scaleless body, and a rounded tail.

Cusk (Burbot)

Illustrated fish identification image of a cusk, showing an elongated body, mottled brown coloring, a long continuous dorsal fin, and a rounded tail.
Image of a cusk showing key identification features, including an elongated body, mottled brown coloration, a long continuous dorsal fin, and a rounded tail.

Largemouth bass

Illustrated fish identification image of a largemouth bass, showing an upper jaw that extends past the rear edge of the eye and a dark horizontal stripe along the side of the body.
Image of a largemouth bass showing key identification features, including an upper jaw that extends past the rear edge of the eye and a dark lateral stripe along the body.

NOTE: May be referred to as “black bass” on the regulatory pages.

Smallmouth bass

Illustrated fish identification image of a smallmouth bass, showing an upper jaw that extends to the middle or rear edge of the eye and dark vertical bars along the body.
Image of a smallmouth bass showing key identification features, including an upper jaw that reaches the middle to rear edge of the eye and dark vertical bars along the body.

NOTE: May be referred to as “black bass” on the regulatory pages.

Rock bass

Illustrated fish identification image of a rock bass, showing a deep olive-green body with dark mottled markings, red eyes, and a spiny dorsal fin.
Image of a rock bass showing key identification features, including a deep olive-green body with dark mottled markings, red eyes, and a spiny dorsal fin.

Bluegill

Illustrated fish identification image of a bluegill, showing a deep-bodied shape, blue and olive coloring, dark vertical bars, and a dark ear flap.
Image of a bluegill showing key identification features, including a deep-bodied shape, blue and olive coloring, dark vertical bars, and a dark ear flap.

Black crappie

Illustrated fish identification image of a black crappie, showing a deep-bodied shape with irregular black speckling, large dorsal fin, and silvery-green coloring.
Image of a black crappie showing key identification features, including a deep-bodied shape, irregular black speckling across the body, and a large dorsal fin.

Illustrations, this page: Landlocked Atlantic salmon, American shad, Rainbow smelt ©NHFG Victor Young; Brown trout, Rainbow trout, Chain pickerel, Brook trout, White perch, Largemouth bass, Yellow perch, Smallmouth bass, Pumpkinseed, Bluegill, Brown bullhead, Black crappie ©Duane Raver; Cusk, Walleye, Rock bass, Northern pike, Round and Lake whitefish ©Ellen Edmondson (Image courtesy of the New York State Department of Environmental Conservation. All rights reserved.); Lake trout ©Timmothy Knepp.