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Cheilobarbus
''Cheilobarbus'', commonly known as sawfins, is a small genus of freshwater ray-finned fishes belonging to the family Cyprinidae, the family which includes the carps, barbs and related fishes. The fishes in this genus are endemic to the Western Cape of South Africa. Taxonomy ''Cheilobarbus'' was first proposed as a taxon, a monotypic subgenus of the genus ''Barbus'', by the Scottish military surgeon and zoologist Andrew Smith in 1841 when he described ''Barbus (Cheilobarbus) capensis'' from the Olifants River on the western coast of South Africa. This genus is included in the subfamily Smiliogastrinae within the family Cyprinidae. Etymology ''Cheilobarbus'' combines ''cheilos'', meaning "lip", with the genus name ''Barbus'', Smith described ''B. capensis'' as having "full and firm" lips. Species ''Cheilobarbus'' contains the following species: * '' Cheilobarbus capensis'' (A. Smith, 1841) (Cape whitefish) * '' Cheilobarbus serra'' ( W. K. H. Peters, 1864) (Sawfin) Both spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Whitefish
The Cape whitefish or Berg-Breede River whitefish (''Cheilobarbus capensis'') is a ray-finned fish species in the family Cyprinidae. It was formerly placed with the South African redfins in ''Pseudobarbus''. It is tetraploid. Its closest living relative is the sawfin (''C. serra''). Distribution and ecology The Cape whitefish is endemic to the Western Cape Province of South Africa, where it occurs in the Breede River's Brandvlei Dam and Sanddrift Dam, as well as the Hex River. Formerly, it was also found in and around the Berg River, but it seems to have disappeared from there. Populations have also been transplanted to farm water catchments, but it is not well known if these have thrived or failed.Impson & Swartz (2007) It inhabits the deeper stretches of rivers with rocky shores or riparian trees. While young fish are common in riffles, adults are not rheophilic and will thrive in slow-moving water. Young fish are carnivores, eating zooplankton and small aquatic invertebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheilobarbus Serra
The sawfin (''Cheilobarbus serra''), also known as Clanwilliam sawfin, is a ray-finned fish species in the family Cyprinidae. It was formerly placed with the South African redfins in ''Pseudobarbus''. It is tetraploid. Its closest living relative is the Cape whitefish (''C. capensis'').de Graaf ''et al.'' (2007) This sizeable cyprinid can grow to over long and weigh more than . Distribution and ecology It is endemic to the Western Cape Province of South Africa, where it was formerly widespread in the Olifants River and its tributaries. Its range has decreased throughout most of the 20th century, and now it is apparently only found in the upper Olifants River as well as the Biedou, Doring, Driehoeks, Jan Dissels, Oorlogskloof, Ratels and Tra Tra Rivers. It is rather euryoecious, inhabiting a wide variety of small and large rivers. While young fish are common in pools in the foothills, adults will move further down to where the rivers enter the coastal plain and the water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheilobarbus Capensis
The Cape whitefish or Berg-Breede River whitefish (''Cheilobarbus capensis'') is a ray-finned fish species in the family Cyprinidae. It was formerly placed with the South African redfins in ''Pseudobarbus''. It is tetraploid. Its closest living relative is the sawfin (''C. serra''). Distribution and ecology The Cape whitefish is endemic to the Western Cape Province of South Africa, where it occurs in the Breede River's Brandvlei Dam and Sanddrift Dam, as well as the Hex River. Formerly, it was also found in and around the Berg River, but it seems to have disappeared from there. Populations have also been transplanted to farm water catchments, but it is not well known if these have thrived or failed.Impson & Swartz (2007) It inhabits the deeper stretches of rivers with rocky shores or riparian trees. While young fish are common in riffles, adults are not rheophilic and will thrive in slow-moving water. Young fish are carnivores, eating zooplankton and small aquatic invertebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinidae
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 1,780 species divided into 166 valid genera. Cyprinids range from about in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless, or ''agastric'', fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used to identify spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smiliogastrinae
Smiliogastrinae is a subfamily of freshwater ray-finned fishes belonging to the family Cyprinidae, the family which includes the carps, barbs and related fishes. The fishes in this genus are found in Africa and Asia and are commonly referred to as barbs. Genera Smiliogastrinae contains the following genera: * '' Amatolacypris'' Skelton, Swartz & Vreven, 2018 * '' Barbodes'' Bleeker, 1859 * '' Barboides'' Brüning, 1929 * '' Bhava'' Sudasinghe, Rüber & Meegaskumbura, 2023 * '' Caecobarbus'' Boulenger, 1921 * '' Chagunius'' H.M. Smith, 1938 * '' Cheilobarbus'' A. Smith 1841 * '' Clypeobarbus'' Fowler, 1936 * '' Coptostomabarbus'' David & Poll 1937 * '' Dawkinsia'' Pethiyagoda, Meegaskumbura & Maduwage, 2012 * '' Desmopuntius'' Kottelat, 2013 * '' Eechathalakenda'' Menon, 1999 * '' Enteromius'' Cope, 1867 * '' Gymnodiptychus'' Herzenstein, 1892 * ''Haludaria'' Pethiyagoda, 2013 * ''Hampala ''Hampala'' is a genus of freshwater Actinopterygii, ray-finned fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrew Smith (zoologist)
Sir Andrew Smith (3 December 1797 – 11 August 1872) was a British surgery, surgeon, explorer, ethnologist and zoology, zoologist. He is considered the father of zoology in South Africa having described many species across a wide range of groups in his major work, ''Illustrations of the Zoology of South Africa''. Smith was born in Hawick, Roxburghshire. He qualified in medicine at the University of Edinburgh obtaining an Doctor of Medicine, M.D. degree in 1819, having joined the Army Medical Services in 1816. South Africa 1820–1837 In 1820 he was ordered to the Cape Colony and was sent to Grahamstown to supervise the medical care of European soldiers and soldiers of the Cape Corps. He was appointed the Albany district surgeon in 1822 and started the first free dispensary for indigent patients in South Africa. He led a scientific expedition into the interior and was able to indulge in his interests of natural history and anthropology. On several occasions, he was sent by gov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish ( Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish ( Chondrichthyes) and jawless fish ( Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins). The pelvic fins are homologous to the hindlimbs of tetrapods, which evolved from lobe-finned fish during the Middle Devonian. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays ( lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found in most fish, in mammals such as whales, and in extinct ancient marine reptiles such as ichthyosaurs. Most have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of whales to identify individuals in the field. The bones or cartilages that support the dorsal fin in fish are called pterygiophores. Functions The main purpose of the dorsal fin is usually to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin Fins are moving appendages protruding from the body of fish that interact with water to ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spawning
Spawn is the Egg cell, eggs and Spermatozoa, sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning. The vast majority of aquatic and amphibious animals reproduce through spawning. These include the following groups: *Bony fishes *Crustaceans (such as crabs, shrimps, etc.) *Mollusks (such as oysters, octopus, squid) *Echinoderms (such as sea urchins, sea stars, sea cucumbers, etc.) *Amphibians (such as frogs, toads, salamanders, newts) *Aquatic insects (such as dragonflies, mayflies, mosquitoes) *Coral, which are living colonies of tiny, aquatic organisms—not plants, as they are sometimes perceived to be. Corals, while appearing sedentary or botanical by nature, actually spawn by releasing clouds of sperm and egg cells into the water column, where the two mix. As a general rule, aquatic or semiaquatic reptiles, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column, back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bone, bony spine (zoology), spines or ray (fish fin anatomy), rays covered by a thin stretch of fish scale, scaleless skin; in lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central limb bud, bud supported by appendicular skeleton, jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy "flipper (anatomy), flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
