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Badis Badis
''Badis badis'', also known as the blue perch or blue badis, is a small species of Asian freshwater fish in the family Badidae of the order Anabantiformes. It is found in ponds, rivers, ditches and swamps in northern India, eastern Pakistan, Bangladesh, Bhutan and Nepal, including the Ganges, Brahmaputra, Mahanadi and Indus basins. It is sometimes kept as an aquarium fish. It is a small, predatory fish that feeds on tiny invertebrates. Maximum total length is around . It is sexually dimorphic, with males growing larger and being more colorful, especially when excited, compared to females. Adult males have blue fins and may display dark vertical bands on the flanks, while the smaller females display little color. Several similar relatives, now recognized as separate '' Badis'' species, have historically been confused with ''Badis badis''. Historically the two genera that now make up the Badidae, ''Badis'' and ''Dario'', were placed in the family Nandidae Nandidae, the leaffis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Buchanan-Hamilton
Francis Buchanan (15 February 1762 – 15 June 1829), later known as Francis Hamilton but often referred to as Francis Buchanan-Hamilton, was a Scottish physician who made significant contributions as a geographer, zoologist, and botanist while living in India. He did not assume the name of Hamilton until three years after his retirement from India. The standard botanical author abbreviation Buch.-Ham. is applied to plants and animals he described, though today the form "Hamilton, 1822" is more usually seen in ichthyology and is preferred by Fishbase. Early life Francis Buchanan was born at Bardowie, Callander, Perthshire where Elizabeth, his mother, lived on the estate of Branziet; his father Thomas, a physician, came in Spittal and claimed the chiefdom of the name of Buchanan and owned the Leny estate. Francis Buchanan matriculated in 1774 and received an MA in 1779. As he had three older brothers, he had to earn a living from a profession, so Buchanan studied medicine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indus
The Indus ( ) is a transboundary river of Asia and a trans-Himalayan river of South and Central Asia. The river rises in mountain springs northeast of Mount Kailash in Western Tibet, flows northwest through the disputed region of Kashmir, Quote: "Kashmir, region of the northwestern Indian subcontinent. It is bounded by the Uygur Autonomous Region of Xinjiang to the northeast and the Tibet Autonomous Region to the east (both parts of China), by the Indian states of Himachal Pradesh and Punjab to the south, by Pakistan to the west, and by Afghanistan to the northwest. The northern and western portions are administered by Pakistan and comprise three areas: Azad Kashmir, Gilgit, and Baltistan, ... The southern and southeastern portions constitute the Indian state of Jammu and Kashmir. The Indian- and Pakistani-administered portions are divided by a "line of control" agreed to in 1972, although neither country recognizes it as an international boundary. In addition, China became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nandidae
Nandidae, the leaffish, are a family of small freshwater fishes which some authorities classify in the order Anabantiformes, but which the 5th edition of '' Fishes of the World'' classifies the family and the related Badidae and Pristolepididae outside that order as "sister-taxa". Fishes of the World classified these families and the Anabantiformes alongside Synbranchiformes, Carangiformes, Istiophoriformes and Pleuronectiformes in a monophyletic clade which is a sister taxon to the Ovalentaria but to which the authors do not assign a rank or a name. According to FishBase, the family includes three genera: '' Nandus'' of South and Southeast Asia with several species, and the monotypic '' Afronandus'' and '' Polycentropsis'' of tropical West and Middle Africa. Most recent authorities place the two African genera in the South American leaffish family, Polycentridae, which is only distantly related to ''Nandus'' (the "true" Nandidae).Collins, R.A., R. Britz, and L. Ruber (2015). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dario (fish)
''Dario'' is a genus of very small chameleonfishes native to streams and freshwater pools in China (Yunnan), India (northeastern part of the country and Western Ghats) and Myanmar.Britz, R. & Ali, A. (2015): ''Dario huli'', a new species of badid from Karnataka, southern India (Teleostei: Percomorpha: Badidae). ''Zootaxa, 3911 (1): 139–144.''Britz, R. & Kullander, S.O. (2013)''Dario kajal'', a new species of badid fish from Meghalaya, India (Teleostei: Badidae). ''Zootaxa, 3731 (3): 331–337.'' Depending on exact species, they are up to in standard length, and reddish or brownish in colour. Species There are currently 6 recognized species in this genus: * '' Dario dario'' F. Hamilton, 1822 * '' Dario dayingensis'' S. O. Kullander & Britz, 2002 * '' Dario huli'' Britz & P. H. A. Ali, 2015 * '' Dario hysginon'' S. O. Kullander & Britz, 2002 * '' Dario kajal'' Britz & S. O. Kullander, 2013 *'' Dario melanogrammus'' Britz, S. O. Kullander & Rueber, 2022Britz, R., Kullande ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sven O
Sven (in Danish and Norwegian, also Svend and also in Norwegian most commonly Svein) is a Scandinavian first name which is also used in the Low Countries and German-speaking countries. The name itself is Old Norse for "young man" or "young warrior". The original spelling in Old Norse was ''sveinn''. Over the centuries, many northern European rulers have carried the name including Sweyn I of Denmark (Sven Gabelbart). An old legend relates the pagan king Blot-Sven ordered the execution of the Anglo-Saxon monk Saint Eskil. In medieval Swedish, "sven" (or "sven av vapen" (sven of arms)) is a term for squire. The female equivalent, Svenja, though seemingly Dutch and Scandinavian, is not common anywhere outside of German-speaking countries. Sven can also be spelled with W, Swen, but is pronounced as Sven. The Icelandic version of Sven/Svend is Sveinn (); the Faroese version is Sveinur (). Entertainment and music * Sven Einar Englund, Finnish composer * Sven Epiney, Swiss televis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Badis (fish)
''Badis'' is a genus of freshwater fish in the family Badidae found in South Asia, Southeast Asia and China. These species have a sharp spine on the opercle, soft and spinous parts of the dorsal fin contiguous, three spines in the anal fin, tubed pores in the lateral line, villiform teeth and a rounded caudal fin.Geetakumari, K. & Kadu, K. (2011)''Badis singenensis'', a new fish species (Teleostei: Badidae) from Singen River, Arunachal Pradesh, northeastern India. ''Journal of Threatened Taxa, 3 (9): 2085-2089.'' In addition, they differ from the related genus ''Dario'' by being larger and displaying more involved parental care. Species There are currently 24 recognized species in this genus, but a comprehensive taxonomic review is necessary as some of the described species are inseparable based on available data. * '' Badis andrewraoi'' Valdesalici & van der Voort, 2015Valdesalici, S. & van der Voort, S. (2015): Four new species of the Indo-Burmese genus ''Badis'' from W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexually Dimorphic
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishkeeping
Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond. There is also a piscicultural fishkeeping industry, serving as a branch of agriculture. Origins of fishkeeping Fish have been raised as food in pools and ponds for thousands of years. Brightly colored or tame specimens of fish in these pools have sometimes been valued as pets rather than food. Many cultures, ancient and modern, have kept fish for both functional and decorative purposes. Ancient Sumerians kept wild-caught fish in ponds, before preparing them for meals. Depictions of the sacred fish of Oxyrhynchus kept in captivity in rectangular temple pools have been found in ancient Egyptian art. Similarly, Asia has experienced a long history of stocking rice paddies with freshwater fish suitable for eating, including various types of catfish and cyprinid. Selective breeding of carp into today's popular and completely domesticated koi and fancy goldfish b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mahanadi
The Mahanadi is a major river in East Central India. It drains an area of around and has a total length of . Mahanadi is also known for the Hirakud Dam. The river flows through the states of Chhattisgarh and Odisha and finally merged with Bay of Bengal. Etymology The word Mahanadi is a compound of the Sanskrit words ''maha'' ("great") and ''nadi'' ("river"). In different era, this river was known by several names, such as: *Ancient era – Kanaknandini * Dvapara Yuga – Chitrotpala (Similar name in Matsya Purana) *Treta Yuga – Nilotpala (Similar name in vayu Purana) *Mahabharata era – Mahanad * Kali Yuga – Mahanadi or Mahashweta Course Source and Upper Course Like many other seasonal Indian rivers, the Mahanadi too is a combination of many mountain streams and thus its precise source is impossible to pinpoint. However its farthest headwaters lie from Pharsiya village in Nagri Sihawa above sea level about 11 km, in a dense patch of forest, south of Sihawa town in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brahmaputra
The Brahmaputra is a trans-boundary river which flows through Tibet, northeast India, and Bangladesh. It is also known as the Yarlung Tsangpo in Tibetan, the Siang/Dihang River in Arunachali, Luit in Assamese, and Jamuna River in Bangla. It is the 9th largest river in the world by discharge, and the 15th longest. With its origin in the Manasarovar Lake region, near Mount Kailash, on the northern side of the Himalayas in Burang County of Tibet where it is known as the Yarlung Tsangpo River, It flows along southern Tibet to break through the Himalayas in great gorges (including the Yarlung Tsangpo Grand Canyon) and into Arunachal Pradesh. It flows southwest through the Assam Valley as the Brahmaputra and south through Bangladesh as the Jamuna (not to be confused with the Yamuna of India). In the vast Ganges Delta, it merges with the Ganges, popularly known as the Padma in Bangladesh, and becomes the Meghna and ultimately empties into the Bay of Bengal. About long, the Bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
