International Introductions of
Gymnocephalus cernua Introductions as compiled by FAO |
Main Ref: | Pratt, D.M., W.H. Blust and J.H. Selgeby 1992 | ||||
To: | Canada | ||||
FAO area: | America, North - Inland waters | ||||
From: | Unknown | ||||
FAO area: | |||||
Year: | |||||
Range: | - | ||||
Period: | unknown | ||||
Established in the wild: | established, natural reproduction | ||||
Established in aquaculture: | - | ||||
Significant ecological interactions: | some - adverse | ||||
Significant socio-economic effects: | some - adverse | ||||
Introduced by: | |||||
Reason: | accidental with ships | ||||
Other reason: | |||||
Comments: | Found in Lake Superior (Thunder Bay) where it was accidentally introduced through ballast tanks of ships; predator of eggs or larvae of other species. Of little or no value as food or recreational fish and is frequently considered a pest or a serious problem. Also Ref. 12204. Ref: Pratt, D.M., W.H. Blust and J.H. Selgeby, 1992 |
Update record Fish Introductions Table |