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Bagarius Yarrelli
''Bagarius yarrelli'', also known as the giant devil catfish or goonch, is a very large species of catfish in the genus ''Bagarius'' found in rivers in the Indian subcontinent. The species reaches up to in length. It may be synonymous with '' B. bagarius''. Etymology The species is known by many names throughout its range in the Indian subcontinent. It is known as the ''goonch'' in Urdu, Hindi and Punjabi, ''baghar'' or ''baghair'' in Bengali and Bihari (these names being the origin of the genus name ''Bagarius''), ''gauns'' in Rajasthani, ''gorua'' (গৰুৱা) and ''baghmas'' (বাঘমাছ) in Assamese and ''bodh'' in Chhattisgarhi. Taxonomy The species is frequently taxonomically confused with '' B. bagarius''. ''B. bagarius'' has – perhaps in error – been reported as reaching the same size as ''B. yarrelli'', while others consider ''B. bagarius'' to be a dwarf species that only reaches about . A study published in 2021 found ''B. yarrelli'' to be a junio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Henry Sykes
Colonel William Henry Sykes, FRS (25 January 1790 – 16 June 1872) was an English naturalist who served with the British military in India and was specifically known for his work with the Indian Army as a politician, Indologist and ornithologist. One of the pioneers of the Victorian statistical movement, a founder of the Royal Statistical Society, he conducted surveys and examined the efficiency of army operation. Returning from service in India, he became a director of the East India Company and a member of parliament representing Aberdeen. Life and career Sykes was born near Bradford in Yorkshire. His father was Samuel Sykes of Friezing Hall, and they belonged to the family of Sykeses of Yorkshire. He joined military service as a cadet in 1803 and obtained a commission on 1 May 1804 with the Honourable East India Company. Joining the Bombay Army, he was to lieutenancy on 12 October 1805. He saw action at the siege of Bhurtpur under Lord Lake in 1805. He commanded a regiment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganges
The Ganges ( ) (in India: Ganga ( ); in Bangladesh: Padma ( )). "The Ganges Basin, known in India as the Ganga and in Bangladesh as the Padma, is an international river to which India, Bangladesh, Nepal and China are the riparian states." is a trans-boundary river of Asia which flows through India and Bangladesh. The river rises in the western Himalayas in the Indian state of Uttarakhand. It flows south and east through the Gangetic plain of North India, receiving the right-bank tributary, the Yamuna, which also rises in the western Indian Himalayas, and several left-bank tributaries from Nepal that account for the bulk of its flow. In West Bengal state, India, a feeder canal taking off from its right bank diverts 50% of its flow southwards, artificially connecting it to the Hooghly river. The Ganges continues into Bangladesh, its name changing to the Padma. It is then joined by the Jamuna, the lower stream of the Brahmaputra, and eventually the Meghna, forming the major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overexploitation
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource, as it will be unable to replenish. The term applies to natural resources such as water aquifers, grazing pastures and forests, wild medicinal plants, fish stocks and other wildlife. In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at an unsustainable rate, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology, the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used and defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity, an example being the military macaw. There are currently 5196 animals and 6789 plants classified as Vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon is Vulnerable when it is not critically endangered or Endangered but is fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagarius Lica
''Bagarius'' ( th, ปลาแค้) is an Asian genus of catfishes (order Siluriformes) of the family Sisoridae. It includes five to six extant species and potentially one extinct fossil species, '' B. gigas''. Species There are currently five to six extant species placed in ''Bagarius'': * '' Bagarius bagarius'' (Hamilton, 1822) *'' Bagarius lica'' Volz, 1903 * '' Bagarius rutilus'' Ng & Kottelat, 2000 * '' Bagarius suchus'' Roberts, 1983 (Crocodile catfish) *''Bagarius vegrandis'' Ng & Kottelat, 2021 (Dwarf goonch catfish) *'' Bagarius yarrelli'' ( Sykes, 1839) (goonch catfish) (doubtfully distinct from '' B. bagarius'') A 2021 study found the giant devil catfish (''Bagarius yarrelli'') to be synonymous with ''B. bagarius''. One potential fossil species, †'' Bagarius gigas,'' is known from the Eocene of Sumatra. Distribution ''Bagarius'' species inhabit south and southeast Asia. They are distributed in the Indus drainage in Pakistan and India, east (including penins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagarius Vegrandis
''Bagarius'' ( th, ปลาแค้) is an Asian genus of catfishes (order Siluriformes) of the family Sisoridae. It includes five to six extant species and potentially one extinct fossil species, '' B. gigas''. Species There are currently five to six extant species placed in ''Bagarius'': * '' Bagarius bagarius'' (Hamilton, 1822) *'' Bagarius lica'' Volz, 1903 * '' Bagarius rutilus'' Ng & Kottelat, 2000 * '' Bagarius suchus'' Roberts, 1983 (Crocodile catfish) *'' Bagarius vegrandis'' Ng & Kottelat, 2021 (Dwarf goonch catfish) *'' Bagarius yarrelli'' ( Sykes, 1839) (goonch catfish) (doubtfully distinct from '' B. bagarius'') A 2021 study found the giant devil catfish (''Bagarius yarrelli'') to be synonymous with ''B. bagarius''. One potential fossil species, †'' Bagarius gigas,'' is known from the Eocene of Sumatra. Distribution ''Bagarius'' species inhabit south and southeast Asia. They are distributed in the Indus drainage in Pakistan and India, east (including penin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guinea. Indonesia is the world's largest archipelagic state and the 14th-largest country by area, at . With over 275 million people, Indonesia is the world's fourth-most populous country and the most populous Muslim-majority country. Java, the world's most populous island, is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature. It has 38 provinces, of which nine have special status. The country's capital, Jakarta, is the world's second-most populous urban area. Indonesia shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia, as well as maritime borders with Singapore, Vietnam, Thailand, the Philippines, Australia, Palau, and India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laos
Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist state and the only landlocked country in Southeast Asia. At the heart of the Indochinese Peninsula, Laos is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and southwest. Its capital and largest city is Vientiane. Present-day Laos traces its historic and cultural identity to Lan Xang, which existed from the 14th century to the 18th century as one of the largest kingdoms in Southeast Asia. Because of its central geographical location in Southeast Asia, the kingdom became a hub for overland trade and became wealthy economically and culturally. After a period of internal conflict, Lan Xang broke into three separate kingdoms: Luang Phrabang, Vientiane and Champasak. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xe Bang Fai River
The Xe Bang Fai River (''Nam Xebangfai'') is a river in Laos. It originates in the Annamite Range The Annamite Range or the Annamese Mountains (french: Chaîne annamitique; lo, ພູ ຫລວງ ''Phou Luang''; vi, Dãy (núi) Trường Sơn) is a major mountain range of eastern Indochina, extending approximately through Laos, Viet ... on the border between Laos and Vietnam at . It flows through Khammouane Province and Savannakhet Province. Xe Bang Fai River Cave Xe Bang Fai River Cave is in Hin Namno National Park in Khammouane Province. It is believed to be one of the largest river caves in the world with passages some 120 meters tall and 200 meters wide, and a subterranean channel seven kilometres long. Notes References External links Account of a visit to the Xe Bang Fai cave in 2014 Account of a second visit to the Xe Bang Fai cave, Tham Khoun Xe in 2015 Rivers of Laos Geography of Savannakhet province Geography of Khammouane province {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chao Phraya River
The Chao Phraya ( or ; th, แม่น้ำเจ้าพระยา, , or ) is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand. Etymology On many old European maps, the river is named the ''Mae Nam'' (Thai: แม่น้ำ), the Thai word for "river" (literally, "motherly water"). James McCarthy, F.R.G.S., who served as Director-General of the Siamese Government Surveys prior to establishment of the Royal Survey Department, wrote in his account, "''Mae Nam'' is a generic term, ''mae'' signifying "mother" and ''Nam'' "water," and the epithet Chao P'ia signifies that it is the chief river in the kingdom of Siam." H. Warington Smyth, who served as Director of the Department of Mines in Siam from 1891 to 1896, refers to it in his book first published in 1898 as "the Mae Nam Chao Phraya". In the English-language media in Thailand, the name Chao Phraya River is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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