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What fish is this goldeneye?


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  • 9 months later...

Tell the difference: Cisco, Lake Whitefish, and Mooneye

Both the Cisco (Coregonus artedi) and Lake Whitefish (Coregonus clupeaformis) are found in Lake of the Woods and other lakes in Minnesota. Ciscos are commonly caught by ice anglers, while Lake whitefish are occasionally caught. Both fish make tasty tablefare.

Many anglers have a difficult time telling the difference between the two species. They each are identifiable as a member of the Trout/Salmon family by their body shape and adipose fin. The main distinguishing feature is their snouts. The Lake Whitefish has a snout that overhangs the lower jaw. The lower jaw of the Cisco extends up to or beyond the tip of snout.

Cisco are also commonly called tullibee or lake herring.

Lake Whitefish can grow to larger sizes than Cisco. The Minnesota state record Cisco weighed 5 pounds, 11.8 ounces, and was caught in Saint Louis County. The Minnesota state record Lake Whitefish weighed 12 pounds, 4.5 ounces, and was caught on Leech Lake.

Mooneye (Hiodon tergisus) are similar in appearance to cisco and lake whitefish. Mooneye are characterized by having large eyes. They are one of only two members of the Mooneye family, the other being the goldeye.

You are most likely to catch mooneye while fishing the Rainy River, or near the mouth of the Rainy River in the Pine Island area. Mooneye are often caught by anglers using flies, especially during July when mayflies are hatching in the Rainy River. The Minnesota state-record for mooneye is one pound, fifteen ounces.  That fish was caught in the Minnesota River in Redwood County.

 

Lake whitefish photo taken by John Lyons, Wisconsin DNR
Photo: Lake Whitefish photo taken by John Lyons, Wisconsin DNR

 

Lake whitefish depicting snout overhanging its lower jaw
Photo: Lake whitefish depicting snout overhanging its lower jaw

 

Cisco photo taken by John Lyons, Wisconsin DNR
Photo: Cisco photo taken by John Lyons, Wisconsin DNR

 

Cisco - the lower jaw is not overhung by snout
Photo: Cisco - the lower jaw is not overhung by snout

 

 

Mooneye photo taken by John Lyons, Wisconsin DNR
Photo: Mooneye photo taken by John Lyons, Wisconsin DNR

 

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