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Acerinae
''Gymnocephalus'' is a genus of ray-finned fishes from the family Percidae, which includes the perches, pike-perches and darters. They are from the Western Palearctic area, although one species, ''Gymnocephalus cernua'' has been accidentally introduced to the Great Lakes region where it is regarded as an invasive species. They have the common name "ruffe" and resemble the true perches in the genus ''Perca'', but are usually smaller and have a different pattern. Characteristics The species within the genus ''Gymnocephalus'' have a number of characters in common including that their dorsal fins are not completely separate, they have enlarged canals extending from the lateral line on their heads, the preorbital bone covers the maxillary bone, presence of setiform or bristle-like teeth, having very few or no vomerine and palatine teeth and the possession of three paired bones in the neck, known as extrascapulars, in their lateral line system, of which, two are simple tubes. Species T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percidae
The Percidae are a family of ray-finned fish, part of the order Perciformes, which are found in fresh and brackish waters of the Northern Hemisphere. The majority are Nearctic, but there are also Palearctic species. The family contains more than 200 species in 11 genera. The perches, and their relatives are in this family; well-known species include the walleye, sauger, ruffe, and three species of perch. However, small fish known as darters are also a part of this family. Characteristics The family is characterised by having the dorsal fin split into two which are normally separated or have a narrow connection, although this is wider in the genus ''Zingel'', the front section contains the spines and the rear section contains the soft rays. The anal fin contains 1 or 2 spines, if there is a second spine it is typically weak. The pelvic fins are placed on the thorax and have a single spine and 5 soft rays. They also have skeletal synapomorphies. The maximum size attained in in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Bleeker
Pieter Bleeker (10 July 1819 – 24 January 1878) was a Dutch medical doctor, ichthyologist, and herpetologist. He was famous for the ''Atlas Ichthyologique des Indes Orientales Néêrlandaises'', his monumental work on the fishes of East Asia published between 1862 and 1877. Life and work Bleeker was born on 10 July 1819 in Zaandam. He was employed as a medical officer in the Royal Netherlands East Indies Army from 1842 to 1860, (in French). stationed in the Dutch East Indies (now Indonesia). During that time, he did most of his ichthyology work, besides his duties in the army. He acquired many of his specimens from local fishermen, but he also built up an extended network of contacts who would send him specimens from various government outposts throughout the islands. During his time in Indonesia, he collected well over 12,000 specimens, many of which currently reside at the Naturalis Biodiversity Center in Leiden. Bleeker corresponded with Auguste Duméril of Paris. His wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Palearctic
The Western Palaearctic or Western Palearctic is part of the Palaearctic realm, one of the eight biogeographic realms dividing the Earth's surface. Because of its size, the Palaearctic is often divided for convenience into two, with Europe, North Africa, northern and central parts of the Arabian Peninsula, and part of temperate Asia, roughly to the Ural Mountains forming the western zone, and the rest of temperate Asia becoming the Eastern Palaearctic. Its exact boundaries differ depending on the authority in question, but the '' Handbook of the Birds of Europe, the Middle East, and North Africa: The Birds of the Western Palearctic'' (''BWP'') definition is widely used, and is followed by the most popular Western Palearctic checklist, that of the Association of European Rarities Committees (AERC). The Western Palearctic realm includes mostly boreal and temperate climate ecoregions. The Palaearctic region has been recognised as a natural zoogeographic region since Sclater propos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juraj Holčík
Juraj is a given name used in a number of Slavic languages, including Czech, Slovak, and Croatian. Pronounced "You-rye" but with a trilled r. The English equivalent of the name is George (other), George. Notable people * Juraj Chmiel, Czech diplomat and politician * Juraj Dobrila, Croatian bishop and benefactor * Juraj Filas, Slovak composer * Juraj Habdelić, Croatian writer and lexicographer * Juraj Herz, Czechoslovakian director * Juraj Jakubisko, Slovak director * Juraj Jánošík, Slovak national hero * Juraj Križanić, Croatian Catholic missionary and first pan-Slavist * Juraj Kucka, Slovak footballer * Juraj Okoličány, Slovak ice hockey referee * Juraj Sviatko, Slovak figure skater * Josip Juraj Strossmayer, Croatian politician, Roman Catholic bishop * Juraj Slafkovský, Slovak ice hockey player * Juraj Hromkovič, Slovak Computer Scientist and Professor at ETH Zürich Derived forms * Jura (given name), Jura: ''Czech, Slovak, Moravian, Croatian and Romanian'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
