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Wisconsin Game Fish Identification. Caudal Fin. Dorsal Fin. Operculum. Pectoral Fin. Anal Fin. Pelvic Fin. Bluegill. 1/2 as deep as long under 1” thick blue color on lower portion of both the jaw and operculum Color is NOT a good way to identify. Dark round spot on the rear dorsal fin
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Caudal Fin Dorsal Fin Operculum Pectoral Fin Anal Fin Pelvic Fin
1/2 as deep as long under 1” thick blue color on lower portion of both the jaw and operculum Color is NOT a good way to identify Dark round spot on the rear dorsal fin 5-9 dark vertical bands running down their sides. Bluegill
Lateral facial markings Scarlet spot on opercle flap 7-8 dark vertical bands Very similar to bluegill Very colorful, but color is a poor ID indicator. Pumpkinseed
Produced from a Bluegill and Pumpkinseed crossbreeds. Looks very similar to Bluegill or Pumpkinseed, but slight differences. Red Eared Sunfish
Both Black and White (black = 7-8 dorsal spines, white = 6 dorsal spines.) Mottled Markings Color is not a good identification indicator Very thin, perhaps the thinnest of all sunfish 8-10 inches is common Crappie
Golden Yellow Coloration on their sides. (may vary) 6-8 dark vertical bands along their sides have two dorsal fins, membrane between the two is black caudal fin is slightly rounded and forked 3.5 times as long as deep unlike walleyes, they do not have canines Yellow Perch
Largemouth Bass • Upper jaw extends beyond the eye • Deep notch in dorsal fin • Caudal fin is forked and rounded • Golden-brown eye • Dark, irregular horizontal stripe along lateral line
Smallmouth Bass • Upper jaw does not extends beyond the eye • Slight notch in dorsal fin • Caudal fin is not forked and not rounded • Red eye • Dark, vertical stripe along sides
White Bass • Brown eye • Silver color • many dark, horizontal lines along the sides
Rock Bass • Brown eye • Brown coloration, with light vertical stripes along the sides
Walleye • Canines along the lower jaw • irregularly-shaped vertical blotches along sides • Upper half of body has mottled vertical stripes • Dark blotch on back of anterior dorsal fin, no spots on dorsal fin • Silvery, opaque marble eyes that glow in the dark • White tip on lower edge of caudal fin
Sauger • Very similar to a walleye • spots on the anterior dorsal fin, no black blotch at the back of anterior dorsal • no white tip on low caudal fin
Northern Pike • Hard-muscled, tube-shaped fish with elongated body and a flat, duckbill snout • light, bean-shaped markings that run the length of the body in horizontal rows • Tiger-striped fins • Rounded caudal, pelvic and pectoral fins • Scales cover the cheek and upper half of the operculum • 5-7 pores on each side of lower jaw
Muskellunge • Hard-muscled, tube-shaped fish with elongated body and a flat, duckbill snout • vertical stripes along each side of the fish • Tiger-striped fins • Pointed caudal, pelvic and pectoral fins • No scales on the cheek and upper half of the operculum • 6-9 pores on each side of lower jaw
Brook Trout • Has an elongated and compressed body • squared-tail • wormlike markings on back and head • red spots along the side of their bodies with blue halos. • Lower fins have a white leading edge, followed by a black border
Brown Trout • “X” shaped markings on back and upper half of their body • squared tail • numerous small spots on the head • inside of the mouth is white • 10-12 anal rays
Rainbow Trout • Many small spots on the body • Distinctive pink horizontal stripe down each side of the body • squared tail with spots • 10-12 anal rays
Lake Trout • Silvery color with irregular wormlike markings on back and dorsal fin • Light spots in body and tail • deeply forked tail with spots on edge leading to the body • 10-11 rays in their anal fin • inside of mouth is white
Chinook Salmon • Some black spots on upper half of body • grey-black mouth, with teeth set in black gums • squared tail with spots on both halves • 15-19 anal rays
Coho Salmon • Small black spots on backs, sides above the lateral line, base of dorsal fin, and upper half of caudal fin. • Inside of mouth is grey or black, with teeth set in white gums • Slightly forked tail • 12-15 anal rays
Lake Sturgeon • Torpedo-shaped body, turned up tail • Resembles a shark • Five rows of shell-shaped plates along back • notochord instead of backbone • Mouth is on underside of body with barbels
Channel Catfish • Scaleless, tough skin • 8 barbels • Three sharp spines, (1 dorsal, 2 pectoral) • Black spots on lower side of body • Deeply forked caudal fin
Flathead Catfish • Scaleless, tough skin • 8 barbels • Three sharp spines, (1 dorsal, 2 pectoral) • No spots on lower side of body • squared caudal fin • flattened head • lower lip protrudes past upper lip
Yellow Bullhead • Black, Brown or Yellow species • Scaleless, tough skin • 6 barbels • Sharp spines (1 dorsal, 2 pectoral) • Caudal fin is slightly notched and squared
Carp • Rough fish • Very scaly • Barbels • Much like a sucker