Salmonidae

Longjaw cisco

Coregonus alpenae

• White
• Temperate
• Northern Hemisphere
• Regional distribution
• Freshwater fish
• North America
• Fusiform
• Medium
• Temperate fish

The longjaw cisco (Coregonus alpenae) was a deep-water cisco or chub, usually caught at depths of 100 metres (328 ft) or more from Lakes Huron, Michigan, and Erie. Its Latin name was derived from Alpena, a city in Michigan. Silver colored and growing to a maximum length of about 30 centimeters (12 inches) long, the extinction of longjaw cisco was a result of overfishing, pollution of the Great Lakes and the disruption of Great Lakes food chains after the introduction of the sea lamprey.