Monday, September 12, 2011

Longjaw Cisco

The longjaw cisco (Coregonus alpenae) was one of several species of deepwater whitefish that was an important part of the smoked fish industry in the Great Lakes. It was known to occur in Lakes Michigan, Huron, and Erie. Extensive over-fishing and increased lake pollution led to a population crash in the first half of the 20th Century. The cisco was further decimated by sea lamprey predation and habitat degradation, and has not been seen in Lakes Huron and Erie since the 1950's. The last collection in Lake Michigan was in 1967, at which time the species was listed as endangered under the ESPA. In 1983, the FWS declared
the longjaw cisco extinct and took it off the endangered species list (48 FR 39942).

Source: Wikipedia


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