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Channidae
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] |
Channa
''Channa'' is a genus of predatory fish in the family Channidae, commonly known as snakeheads, native to freshwater habitats in Asia. This genus contains about 50 scientifically described species. The genus has a wide natural distribution extending from Iraq in the west, to Indonesia and China in the east, and parts of Siberia in the Far East. A particularly high richness of species exists in Myanmar (Burma) and northeastern India, and many ''Channa'' species live nowhere else. In contrast, a few widespread species have been introduced to several regions outside their natural range, where they often become invasive. The large and medium-sized ''Channa'' species are among the most common staple food fish in several Asian countries, and they are extensively cultured.Kumar, K., R. Kumar, S. Saurabh, M. Sahoo, A.K. Mohanty, P.L. Lalrinsanga, U.L. Mohanty and P. Jayasankar (2012). Snakehead Fishes: Fact Sheets. Central Institute of Freshwater Aquaculture, Bhubaneswar. Apart from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Snakeheads
Dwarf snakehead is a term coined by aquarists to describe a group of ''Channa'' snakehead fishes growing to about maximum. They are found in freshwater habitats (often streams) in South and Southeast Asia, and southern China.Endruweit, M. (2017). Description of a new dwarf snakehead (Perciformes: Channidae) from western Yunnan. Vertebrate Zoology 67(2): 173-178. The following snakeheads belong to this group:Lalramliana, J. D. M. Knight, D. V. Lalhlimpuia and M. Singh (2018). Integrative taxonomy reveals a new species of snakehead fish, Channa stiktos (Teleostei: Channidae), from Mizoram, North Eastern India. Vertebrate Zoology 68 (2): 165-175. *''Channa andrao'' *''Channa aurantipectoralis'' *'' Channa baramensis'' *''Channa bipuli'' *''Channa bleheri'' *'' Channa brunnea'' *'' Channa burmanica'' *''Channa gachua'' *''Channa harcourtbutleri'' *''Channa kelaartii'' *''Channa limbata'' *''Channa lipor'' *'' Channa melanostigma'' *''Channa orientalis'' *''Channa ornatipinnis'' *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Snakehead
The northern snakehead (''Channa argus'') is a species of snakehead fish native to China, Russia, North Korea, and South Korea, ranging from the Amur River to Hainan. It has been introduced to other regions, where it is considered invasive. In Europe, the first report of the species was from Czechoslovakia in 1956. In the United States, the fish is considered to be a highly invasive species. Appearance The distinguishing features of a northern snakehead include a long dorsal fin with 49–50 rays, an anal fin with 31–32 rays, a small, anteriorly depressed head, the eyes above the middle part of the upper jaw, a large mouth extending well beyond the eye, and villiform teeth in bands, with large canines on the lower jaw and palatines. It is generally reported to reach a length up to , but specimens approaching are known according to Russian ichthyologists. The largest registered by the International Game Fish Association weighed , although this was surpassed by a northern sn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channa Marulius
''Channa marulius'' (bullseye snakehead or great snakehead) is a large species of snakehead native to South Asia. Populations in Southeast Asia are now regarded as separate species.Adamson, E. A. S. and R. Britz (2018). The snakehead fish Channa aurolineata is a valid species (Teleostei: Channidae) distinct from Channa marulius. Zootaxa 4514 (4): 542-552.Adamson, E.A.S., R. Britz and S. Lieng (2019). Channa auroflammea, a new species of snakehead fish of the Marulius group from the Mekong River in Laos and Cambodia (Teleostei: Channidae). Zootaxa 4571(3): 398-408. Taxonomy ''C. marulius''—as traditionally defined—is a species complex. A study published in 2017 showed that '' C. pseudomarulius'', formerly regarded as a synonym of ''C. marulius'', is a valid species from the southern Western Ghats. A genetic study published the same year showed that ''C. marulius'' consisted of three clearly separated lineages (not counting the already separated ''C. pseudomarulius''). On ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channa Striata
''Channa striata'', the striped snakehead, is a species of snakehead fish. It is also known as the common snakehead, chevron snakehead, or snakehead murrel and generally referred simply as mudfish. It is native to South and Southeast Asia, and has been introduced to some Pacific Islands. Reports from Madagascar and Hawaii are misidentifications of '' C. maculata''.USGS, Southeast Ecological Science Center: Channa striata.' Retrieved 27 June 2014. A genetic study published in 2017 indicates that ''C. striata'' is a species complex. Description It is a bony fish with endoskeleton ribcage, grows up to a meter in length, though because of fishing, this size is rarely found in the wild. It has a widespread range covering southern China, Pakistan, most of India, southern Nepal, Bangladesh, Sri Lanka, and most of Southeast Asia. It has more recently been introduced to the outermost parts of Indonesia, the Philippines, and Mauritius. Reports beginning in the early 20th century that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Snakehead
''Channa micropeltes'', giant snakehead, giant mudfish or toman harimau, is among the largest species in the family Channidae, capable of growing to in length and a weight of . It is native to the fresh waters of Southeast Asia (South Indian populations are now regarded as a separate species, ''Malabar snakehead, C. diplogramma''),Benziger A, Philip S, Raghavan R, Anvar Ali PH, Sukumaran M, et al. (2011). ''Unraveling a 146 Years Old Taxonomic Puzzle: Validation of Malabar Snakehead, Species-Status and Its Relevance for Channid Systematics and Evolution.'' PLoS ONE 6(6): e21272 but has also been Introduced species, introduced elsewhere and is considered Invasive species, invasive in Taiwan. Other names include ''xal mas'' (শাল মাছ) in Assamese language, Assamese, red snakehead, redline snakehead, and ''ikan toman'' (where ''ikan'' is fish in Malay Language, Malay and Indonesian language, Indonesian). Biology The young of the ''C.micropeltes'' are red in color, with oran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channa Orientalis
The Ceylon snakehead (''Channa orientalis'') is a species of snakehead found in freshwater habitats, typically shaded streams, in southwestern Sri Lanka (although occasionally claimed to occur in other countries, this is misidentifications of relatives, usually '' C. gachua'').Conte-Grand, C., Britz, R., Dahanukar, N., Raghavan, R., Pethi-yagoda, R., Tan, H.H., Hadiaty, R.K., Yaakob, N.S. & Rüber, L. (2017). Barcoding snakeheads (Teleostei, Channidae) re-visited: Discovering greater species diversity and resolving perpetuated taxonomic confusions. PLoS ONE, 12 (9): e0184017.SeriouslyFishChanna orientalis Retrieved 12 February 2019. It is evaluated as Vulnerable by the IUCN and some do consider ''C. orientalis'' as a threatened species. Description ''C. orientalis'' has a standard length of up to and is one of the smallest species in the family, making it a dwarf snakehead. It lacks pelvic fins and this distinguishes it from some of its relatives, including ''C. gachua'', a w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eochanna Chorlakkiensis
''Eochanna chorlakkiensis'' is an extinct prehistoric snakehead. The fish lived in the Lutetian age of the Middle Eocene (41-48 million years ago) in the area of what is now the Kuldana Formation near Chorlakki, Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ....Roe, L. J. (1991):Phylogenetic and Ecological Significance of Channidae (Osteichthyes Teleostei) from the Early Eocene Kuldana Formation of Kohat, Pakistan. ''Contributions From The Museum Of Paleontology, The University Of Michigan, VOL. 28, NO. 5, PP. 93-10'' References Channidae Fossil taxa described in 1991 {{Anabantiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Channa Barca
The Barca snakehead (''Channa barca'') is a rare species of snakehead. It is endemic to the upper Brahmaputra river basin in northeastern India and Bangladesh. Records from Nepal are of doubtful validity. Overall it has been assessed as data deficient by the IUCN, and in 2014 it was assessed as critically endangered in Bangladesh by the IUCN. In Assam, it is locally known as ''cheng garaka'' or ''garaka cheng''. This is a relatively large snakehead, reaching a total length of up to . The species is regarded as an excellent food fish, and it is also highly desired by aquarists, but its rarity, behavior and large size makes it unsuitable for most aquariums.SeriouslyFishChanna barca Retrieved 14 February 2019. Distribution, habitat and behavior The barca snakehead is only known from the upper Brahmaputra river basin the Assam and Nagaland in India, and Sylhet in Bangladesh. Records from Nepal are of doubtful validity. It mostly inhabits wetlands, often near the margins, but can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parachanna
''Parachanna'' is a genus of snakeheads native to freshwater habitats in tropical Africa. Three recognized extant (living) species are in this genus, but a phylogenetic study from 2017 indicates that a fourth, currently undescribed species also exists. One fossil species, ''Parachanna fayumensis'' Murray, 2006 dated to the Upper Eocene and Lower Oligocene is known from the Jebel Qatrani Formation of the Fayum Depression, Egypt. Species The three recognized extant species in this genus are: * ''Parachanna africana'' ( Steindachner, 1879) (African snakehead) * ''Parachanna insignis'' ( Sauvage, 1884) (brown snakehead) * ''Parachanna obscura The obscure snakehead, ''Parachanna obscura'', is a medium-sized carnivorous fish that has an elongated shape tapered on both ends and is covered in medium circular scales (cycloid). The head, resembling a snake, is long and depressed anteriorly ...'' ( Günther, 1861) (obscure snakehead) References * Freshwater fish genera Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carp
Carp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. While carp is consumed in many parts of the world, they are generally considered an invasive species in parts of Africa, Australia and most of the United States. Biology The cypriniformes (family Cyprinidae) are traditionally grouped with the Characiformes, Siluriformes, and Gymnotiformes to create the superorder Ostariophysi, since these groups share some common features. These features include being found predominantly in fresh water and possessing Weberian ossicles, an anatomical structure derived from the first five anterior-most vertebrae, and their corresponding ribs and neural crests. The third anterior-most pair of ribs is in contact with the extension of the labyrinth and the posterior with the swim bladder. The function is poorly understood, but this structure is presumed to take part in the transmission of vibrations from the swim bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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