ruffe
Sign in to saveThe ruffe (Gymnocephalus cernua), also known as the Eurasian ruffe or pope, is a freshwater fish found in temperate regions of Europe and northern Asia. It has been introduced into the Great Lakes of North America as an invasive species and is causing unfortunate results as it is reproducing faster than other species. Its common names are ambiguous – "ruffe" may refer to any local member of its genus Gymnocephalus, which as a whole is native to Eurasia.
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The ruffe is a small freshwater fish native to Europe and Asia that has become an invasive species in North America's Great Lakes, where it reproduces faster than native fish and causes ecological harm. The term "ruffe" can refer to any fish in the Gymnocephalus genus, though it most commonly describes the Eurasian ruffe specifically.
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Article
12 sectionsContents
- Description
- Distribution
- Diet
- Reproduction
- Life cycle
- Presence in the North American Great Lakes area
- Ecological effects
- Control
- Other invasive situations
- References
- Sources
- External links
The ruffe (Gymnocephalus cernua), also known as the Eurasian ruffe or pope, is a freshwater fish found in temperate regions of Europe and northern Asia. It has been introduced into the Great Lakes of North America as an invasive species and is causing unfortunate results as it is reproducing faster than other species. Its common names are ambiguous – "ruffe" may refer to any local member of its genus Gymnocephalus, which as a whole is native to Eurasia.
==Description== The ruffe's colors and markings are similar to those of the walleye, an olive-brown to golden-brown color on its back, paler on the sides with yellowish white undersides. The ruffe can reach up to in length, but is usually around half that size. It is a very aggressive fish for its size. The ruffe also has a large, spiny dorsal fin which is likely distasteful to its predators. It also has two fins on top, the front fin has hard and sharp spines, the back fin has soft spines called rays. The most obvious features to recognize a ruffe are the ruffe's large, continuous dorsal fin and its slightly downturned mouth.