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Aenigmachanna
''Aenigmachanna'' is a genus of ray-finned fish in the order Ananbantiformes. It is the only genus in the family Aenigmachannidae, or dragon snakeheads. It contains two species, both of which are largely restricted to subterranean habitats in southwestern India, namely in the Western Ghats foothills in the state of Kerala. Both of the species in this genus display a unique array of traits that distinguish them from their closest living relatives, the true snakeheads in the family Channidae. These include a much longer and more slender body, numerous scales, a very long anal fin, and a lack of ability to maintain buoyancy. Molecular analyses indicate that they split off from Channidae around 34 or 109 MYA. This may indicate that Aenigmachannidae is a uniquely Gondwanan lineage, and if the higher end of estimations is correct, it may have survived the breakup of the Gondwanan supercontinent around 120 MYA. They are unique among cavefish for being one of the few cave-dwelling m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aenigmachanna Gollum
''Aenigmachanna gollum'', the Gollum snakehead, is a species of aquifer-dwelling dragon snakehead fish that is endemic to the Indian state of Kerala. Description ''A. gollum'' has an elongated, eel-like body coloured mostly brown and beige. Its fins are long and transparent, with the dorsal fin stretching for about three-quarters of its body length, and the anal fin stretching for more than half its body length. Its pectoral fin is large, while the pelvic fin is absent. Its tailfin is ovoid. Several large scales cover the top of the head. It has a reduced swim bladder. Unlike many stygofauna - which usually have reduced colouring and have poor or no vision - ''A. gollum'' has well-developed pigmentation and normally-sized eyes. Due to its reduced swim bladder, ''A. gollum'' cannot remain buoyant in water. Like other snakehead fishes, it breathes air. It moves by undulating its fins, like an eel. Distribution and habitat ''A. gollum'' is known only from its type locality, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aenigmachanna
''Aenigmachanna'' is a genus of ray-finned fish in the order Ananbantiformes. It is the only genus in the family Aenigmachannidae, or dragon snakeheads. It contains two species, both of which are largely restricted to subterranean habitats in southwestern India, namely in the Western Ghats foothills in the state of Kerala. Both of the species in this genus display a unique array of traits that distinguish them from their closest living relatives, the true snakeheads in the family Channidae. These include a much longer and more slender body, numerous scales, a very long anal fin, and a lack of ability to maintain buoyancy. Molecular analyses indicate that they split off from Channidae around 34 or 109 MYA. This may indicate that Aenigmachannidae is a uniquely Gondwanan lineage, and if the higher end of estimations is correct, it may have survived the breakup of the Gondwanan supercontinent around 120 MYA. They are unique among cavefish for being one of the few cave-dwelling m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aenigmachanna Mahabali
''Aenigmachanna mahabali'', the Mahabali snakehead, is a species of troglophilic snakehead fish that is endemic to the Indian state of Kerala.The fish is named after Mahabali, an asura king from Hindu mythology who lived underground and is associated with Onam. It is known from a single specimen recovered from a well over 200 kilometers south of the locality where its closest relative, '' A. gollum'', was found. Alongside ''A. gollum'', it is unique for being the only known cave-dwelling snakehead fish. It can be distinguished from ''A. gollum'' due to having fewer dorsal fin rays, vertebrae, and lateral scales, as well as its pectoral fin rays extending beyond the margin of the membrane, forming filaments. References Fish described in 2019 mahabali Mahabali (IAST: Mahābalī), also known as Bali, Indrasenan, or Māveli, is a daitya king featured in Hinduism. He is the grandson of Prahlada, and a descendant of the sage Kashyapa. There are many versions of his legend, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavefish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Fish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anabantiformes
The Anabantiformes , collectively known as Labyrinth fish. are an order of air-breathing freshwater ray-finned fish with two suborders, five families (Channidae, Aenigmachannidae, Anabantidae, Helostomatidae, and Osphronemidae) and having at least 207 species. In addition, some authorities expand the order to include the suborder Nandoidei, which includes three families - the Nandidae, Badidae and Pristolepididae - that appear to be closely related to the Anabantiformes. The order, and these three related families (classified as ''incertae sedis'' by the 5th edition of '' Fishes of the World''), are part of a monophyletic clade which is a sister clade to the Ovalentaria, the other orders in the clade being Synbranchiformes, Carangiformes, Istiophoriformes and Pleuronectiformes. This clade is sometimes referred to as the Carangaria but is left unnamed and unranked in ''Fishes of the World''. This group of fish are found in Asia and Africa, with some species introduced in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rajeev Raghavan
Rajeev Raghavan is a fisheries scientist and aquatic conservation biologist known for his work on the freshwater fishes of the Indian subcontinent. He is currently an Assistant Professor at the Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies, Kochi, India, and the South Asia Chair of the IUCN’s Freshwater Fish Specialist Group. Education and Career After completing his undergraduate and graduate degrees in Aquaculture, and a PhD in Fish Ecology, Rajeev received his postdoctoral training, and worked as a visiting/guest researcher at various universities in Asia and Europe. Prior to his current appointment with the Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, India, Rajeev also worked as a Lecturer in Fisheries Science at the St. Albert's College, Kochi, India (where he also co-founded the Conservation Research Group, a multidisciplinary network of conservation biologists working on various aspects of the biodiver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snakehead (fish)
The snakeheads are members of the freshwater perciform fish family Channidae, native to parts of Africa and Asia. These elongated, predatory fish are distinguished by their long dorsal fins, large mouths, and shiny teeth. They breathe air with gills, which allows them to migrate short distances over land. They have suprabranchial organs, which are primitive forms of labyrinth organs, that develop when they grow older. The two extant genera are ''Channa'' in Asia and ''Parachanna'' in Africa, consisting of more than 50 species. They are valuable as a food source and have become notorious as an intentionally released invasive species. These fish have been kept as pets but as they get larger, people let them go into ponds, lakes, and rivers, making these fish invasive. Description The various species of snakeheads differ greatly in size; dwarf snakeheads, such as ''Channa orientalis'', do not surpass in length. Most other snakeheads reach between . Five species ('' C. argus'', ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of India
Fishing in India is a major sector within the economy of India contributing 1.07% of its total GDP. The fishing sector in India supports the livelihood of over 28 million people in the country, especially within the marginalized and vulnerable communities. India is the third largest fish producing country in the world accounting for 7.96% of the global production and second largest producer of fish through aquaculture, after China. The total fish production during the 2020-21 is estimated at 14.73 million metric tonnes. According to the National Fisheries Development Board the Fisheries Industry generates an export earnings of Rs 334.41 billion. Centrally sponsored schemes will increase exports by Rs 1 lakh crore in FY25. 65,000 fishermen have been trained under these schemes from 2017 to 2020. Freshwater fishing consists of 55% of total fish production. According to the Ministry of Fisheries, Animal Husbandry, Dairying, fish production increased from 7.52 lakh tonnes in ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of Kerala
Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is ''funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zoologists and paleontologists use ''fauna'' to refer to a typical collection of animals found in a specific time or place, e.g. the "Sonoran Desert fauna" or the "Burgess Shale fauna". Paleontologists sometimes refer to a sequence of faunal stages, which is a series of rocks all containing similar fossils. The study of animals of a particular region is called faunistics. Etymology ''Fauna'' comes from the name Fauna, a Roman goddess of earth and fertility, the Roman god Faunus, and the related forest spirits called Fauns. All three words are cognates of the name of the Greek god Pan, and ''panis'' is the Greek equivalent of fauna. ''Fauna'' is also the word for a book that catalogues the animals in such a manner. The term was first used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of India
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charan Ravi
Charan (IAST: Cāraṇ; Sanskrit: चारण; Gujarati: ચારણ; Urdu: ارڈ; IPA: cɑːrəɳə) is a caste in South Asia natively residing in the Rajasthan and Gujarat states of India, as well as the Sindh and Balochistan provinces of Pakistan. Historically, Charans have been engaged in diverse occupations like bards, poets, historians, pastoralists, agriculturalists and also administrators, jagirdars and warriors and some even as traders. Historical roles and occupations Poets and historians Rajasthani & Gujarati literature from the early and medieval period, upto the 19th century, has been mainly composed by Charans. The relationship between Charans and Rajputs is deeprooted in history. As Charans used to partake in battles alongside Rajputs, they were witnesses not only to battles but also to many other occasions and episodes forming part of the contemporary Rajput life. The poems composed about such wars and incidents had two qualities: basic historical trut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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