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Schizothorax Longipinus
''Schizothorax'' is a genus of cyprinid fish found in southern and western China, through northern South Asia (Himalaya) and Central Asia, to Iran, with a single species, ''S. prophylax'', in Turkey.Yang, J.; J.X. Yang; and X.Y. Chen (2012). A re-examination of the molecular phylogeny and biogeography of the genus Schizothorax (Teleostei: Cyprinidae) through enhanced sampling, with emphasis on the species in the Yunnan–Guizhou Plateau, China. Journal of Zoological Systematics and Evolutionary Research 50(3). They are primarily found in highland rivers, streams and lakes, although a few species occur in lower-lying locations, like Lake Balkhash and lakes of the Sistan Basin.Coad, B.; and J. Hales (2008)Helmand - Sistan.Freshwater Ecoregions of the World. Retrieved 18 May 2019. Their scientific name means "cloven-breast", from Ancient Greek () 'to cleave' and () 'breast-plate' (see also thorax). The western species are typically referred to as ''marinkas'' from their Russian nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Jakob Heckel
Johann Jakob Heckel (23 January 1790 – 1 March 1857) was an Austrian taxidermist, zoologist, and ichthyologist from Mannheim in the Electoral Palatinate. Life Though not a formally trained biologist, he worked his way up through the ranks to eventually become the director of the Fish Collection at the Naturhistorisches Museum in Vienna. For the most part, he was not a traveler or explorer like many of the scientists of the time, he remained in Vienna, where he studied and catalogued specimens sent to him from the field. Among those who brought specimens to him were Karl Alexander Hügel, Joseph Russegger and Theodor Kotschy — involving collection activities in Kashmir, the Middle East and northeastern Africa that greatly enriched the Vienna museum. Fish were his specialty and he worked with many of the greatest ichthyologists of his time including Cuvier, Valenciennes, Bonaparte, Müller, and Troschel. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superorder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizopyge
''Schizopyge'' is a genus of cyprinid freshwater fish found in Pakistan and the northwestern part of India. ''Schizopyge'' is closely related to ''Schizothorax'' and some species have historically been moved between the two genera. Species There are currently two recognized species in this genus: * ''Schizopyge dainellii'' ( Vinciguerra, 1916) * ''Schizopyge niger ''Schizopyge niger'', the Alghad snowtrout, is a species of cyprinid freshwater fish that lives in cold lakes and nearby channels in the Kashmir region in India and Pakistan.Ashoktaru Barat; Rakesh Matura; Jyoti Sati; Rohit Kumar; Farroz A. Bhat ...'' ( Heckel, 1838) (Alghad snowtrout) References Cyprinid fish of Asia Cyprinidae genera {{Barbinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptychobarbus
''Ptychobarbus'' is a genus of cyprinid fish that is found in rivers, streams and lakes in the Himalayas and Tibetan Plateau of China, India, Nepal and Pakistan, extending into the highlands of Afghanistan. They reach up to in weight and about in total length. They mostly feed on benthic invertebrates, but will also take planktonic organisms, aquatic plants and algae.Qi, D.; Y. Chao; S. Guo; L. Zhao; T. Li; F. Wei; and X. Zhao (2012). Convergent, Parallel and Correlated Evolution of Trophic Morphologies in the Subfamily Schizothoracinae from the Qinghai-Tibetan Plateau. PLoS ONE 7(3): e34070. ''Ptychobarbus'' is a part of the schizothoracines (snowtrout and allies), which also includes the genera '' Aspiorhynchus'', ''Chuanchia'', ''Diptychus'', ''Gymnodiptychus'', ''Gymnocypris'', ''Oxygymnocypris'', '' Platypharodon'', ''Schizopyge'', ''Schizopygopsis'' and ''Schizothorax''. Species There are currently four described species in the genus: * ''Ptychobarbus chungtienensis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxygymnocypris
''Oxygymnocypris stewartii'' is a species of cyprinid fish endemic to Tibet and occurs in the Yarlung Tsangpo River (=upper Brahmaputra) and its tributaries at altitudes above in the Qinghai-Tibet Plateau. It is the only species in its genus. Life history and ecology ''Oxygymnocypris stewartii'' grows to in standard length, in total length and in weight. It is a long-lived (to 25 years), late-maturing species that reproduces annually. ''Oxygymnocypris stewartii'' inhabits the deeper areas of clear, fast-flowing rivers with a rocky substrate. It is a generalized and opportunistic predator feeding both on fish and aquatic insects. Smaller specimens feed mostly on cobitid nemacheilid loaches and caddisflies of family Hydropsychidae, whereas larger individuals switch more towards cyprinid fishes and chironomid larvae. '' Triplophysa stenura'' is the most prevalent prey species, present in 47% of stomachs, but ''Schizopygopsis younghusbandi ''Schizopygopsis younghusbandi'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnocypris
''Gymnocypris'' is a genus of fish in the family Cyprinidae endemic to China. Species There are currently 10 recognized species in this genus: * ''Gymnocypris chilianensis'' S. C. Li & S. Y. Chang, 1974 * ''Gymnocypris chui'' T. L. Tchang, T. H. Yueh & H. C. Hwang, 1964 * ''Gymnocypris dobula'' Günther, 1868 * ''Gymnocypris eckloni'' Herzenstein, 1891 * ''Gymnocypris namensis'' ( Y. F. Wu & M. L. Ren, 1982) * ''Gymnocypris pengquensis'' Y. T. Tang, C. G. Feng, K. Y. Wanghe, G. G. Li & K. Zhao, 2016 Tang, Y.-T., Feng, C.-G., Wanghe, K.-Y., Li, G.-G. & Zhao, K. (2016): Taxonomic status of a population of ''Gymnocypris waddelli'' Regan, 1905 (Cypriniformes: Schizothoracinae) distributed in Pengqu River, Tibet, China. ''Zootaxa, 4126 (1): 123–137.'' * ''Gymnocypris potanini'' Herzenstein, 1891 * ''Gymnocypris przewalskii'' (Kessler, 1876) * ''Gymnocypris scleracanthus'' Tsao, C. Z. Wu, Chen & Zhu, 1992 * ''Gymnocypris waddellii'' Regan The family name Regan, alon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnodiptychus
''Gymnodiptychus'' is a genus of cyprinid fish found in freshwater habitats in the highlands of China, Kyrgyzstan and Tajikistan.Kustareva, L.A., and A.M. Naseka (2015). Fish diversity in Kyrgyzstan: Species composition, fisheries and management problems. Aquatic Ecosystem Health & Management 18(2). Khaitov, A.H., Gafurov, A., van Anrooy, R., Hasan, M.R., Bueno, P.B. and Yerli, S.V. (2013). Fisheries and aquaculture in Tajikistan: review and policy framework. FAO Fisheries and Aquaculture Circular. No. 1030/3. Ankara, FAO. They reach up to in total length. Species There are currently three recognized species in this genus: * ''Gymnodiptychus dybowskii'' (Kessler, 1874) (Naked osman) * ''Gymnodiptychus integrigymnatus'' T. P. Mo, 1989 * ''Gymnodiptychus pachycheilus ''Gymnodiptychus pachycheilus'' is a species of cyprinid in the genus ''Gymnodiptychus''. It inhabits the Yellow and Yangtze The Yangtze or Yangzi ( or ; ) is the longest river in Asia, the third-l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diptychus
''Diptychus'' is a genus of cyprinid freshwater fish, consisting of two species found in Himalaya and the Tibetan Plateau of China, India, Nepal and Pakistan, ranging west to the Tien Shan Mountains and Central Asia.Li, G.; Y. Tang; R. Zhang; and K. Zhao (2016). Phylogeography of Diptychus maculatus (Cyprinidae) endemic to the northern margin of the QTP and Tien Shan region. BMC Evolutionary Biology 16(1). The type species is the scaly osman, ''Diptychus maculatus''. The name is derived from the Greek word ''di'', meaning "two", and the Greek word , meaning "fold". ''Diptychus'' is up to in total length. ''Diptychus'' is a part of the schizothoracines (snowtrout and allies), which also includes the genera '' Aspiorhynchus'', ''Chuanchia'', ''Gymnodiptychus'', ''Gymnocypris'', ''Oxygymnocypris'', '' Platypharodon'', ''Ptychobarbus'', ''Schizopyge'', ''Schizopygopsis'' and ''Schizothorax''.Qi, D.; Y. Chao; S. Guo; L. Zhao; T. Li; F. Wei; and X. Zhao (2012). Convergent, Parallel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chuanchia
''Chuanchia labiosa'' is a species of cyprinid fish that is only found in the upper reaches of the Yellow River basin in the Qinghai–Tibet Plateau of China, where it mostly inhabits slow-flowing cold waters at altitudes above . It is the only member of its genus, but is related to other schizothoracines (snowtrout and allies) like '' Aspiorhynchus'', ''Diptychus'', ''Gymnodiptychus'', ''Gymnocypris'', ''Oxygymnocypris'', '' Platypharodon'', ''Ptychobarbus'', ''Schizopyge'', ''Schizopygopsis'' and ''Schizothorax''.Tang, Y.; C. Li; K. Wanghe; C. Feng; C. Tong; F. Tian; and K. Zhao (2019). Convergent evolution misled taxonomy in schizothoracine fishes (Cypriniformes: Cyprinidae). Molecular Phylogenetics and Evolution 134: 323–337 Qi, D.; Y. Chao; Y. Zhao; M. Xia; and R. Wu (2018). Molecular evolution of myoglobin in the Tibetan Plateau endemic schizothoracine fish (Cyprinidae, Teleostei) and tissue-specific expression changes under hypoxia. Fish Physiology and Biochemistry 44(2) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Million Years Ago
The abbreviation Myr, "million years", is a unit of a quantity of (i.e. ) years, or 31.556926 teraseconds. Usage Myr (million years) is in common use in fields such as Earth science and cosmology. Myr is also used with Mya (million years ago). Together they make a reference system, one to a quantity, the other to a particular place in a year numbering system that is ''time before the present''. Myr is deprecated in geology, but in astronomy ''Myr'' is standard. Where "myr" ''is'' seen in geology it is usually "Myr" (a unit of mega-years). In astronomy it is usually "Myr" (Million years). Debate In geology a debate remains open concerning the use of ''Myr'' (duration) plus ''Ma'' (million years ago) versus using only the term ''Ma''. In either case the term '' Ma'' is used in geology literature conforming to ISO 31-1 (now ISO 80000-3) and NIST 811 recommended practices. Traditional style geology literature is written The "ago" is implied, so that any such year number "X Ma" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
