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Ruffe
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 species, introduced into the Great Lakes (North America), Great Lakes of North America, reportedly with unfortunate results, as it is Invasive species, invasive and 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 spin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pärnu (river)
The Pärnu ( et, Pärnu jõgi) is a river in Estonia. It drains into the Pärnu Bay, which is an inlet of the Gulf of Riga. At 144 km, it is one of the longest rivers in Estonia, with a basin area of 6,920 km2 and an average discharge of 64.4 m³/s. Description The Pärnu is the second longest river in Estonia at , and one of only ten rivers in the country which is longer than . Its catchment area is , occupying roughly one-sixth of the landmass of Estonia and one of only 15 catchment areas of Estonian rivers which exceeds . Its sources are in the karst upland of Pandivere, in north-eastern Estonia, and its main tributaries join the river from the upland of Sakala. Due to its length, the river Pärnu passes through most of the landscape types found in Estonia. The rivers' surroundings are dominated by agriculture and its upper reaches in Järva County is considered some of the best arable land in Estonia. In the area around Paide town, the river flows through forests and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |