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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 | |||||