Clarias gariepinus global invasive species database gisd 2015. Water quality parameters such as ph and dissolved oxygen significantly decreased while total alkalinity and conductivity. Unravelling the evolution of africas drainage basins. Clarias gariepinus has also been introduced into most other countries in africa, as well as several in europe, asia and south america. Zerovariate data for clarias gariepinus cg, heterobranchus longifilis hl, and their hybrids females first, apart from the timeweight data in fig. Clarias gariepinus in sub sahara n africa a handbook fao fisheries technical paper. Practical manual for the culture of the african catfish clarias gariepinus. Leaves were treated by soaking in water for 3 days and sundrying for another 3 days. Clarias species list mirror site1, mirror site2, 3, 4. Recorded as having been or being farmed in rice fields ref. Highighted items on the list are where clarias gariepinus may be found. The paper summarizes aspects of nutrition and growth in clarias species.
Clarias gariepinus, also known as the african mud catfish, exists in the wild but it is also cultivated in ponds, cages, and pens and is of great commercial importance. Nasal barbels 15 12 times as long as the head in fishes longer than 12 cm, and 1245 of the head length in smaller individuals. Colour varies dorsally from dark to light brown and is often mottled with shades of olive and grey while the underside is a pale cream to white skelton 2001. Nutritional comparison of captured clarias gariepinus.
Pdf sexual maturity and fecundity of the african catfish. Similar cyclic pattern, of maturation has been demonstrated for c. Among other characteristics, these two species differ primarilly in the number of gill rakers on the first branchial arch. Websites with fact sheets for clarias gariepinus fishbase.
Clarias gariepinus and 0 related entities entities finder. Genus clarias scopoli, 1777 species clarias batrachus linnaeus, 1758 according to eschmeyer et al. The first species selected is the north african catfish clarias gariepinus. Currently, induced spawning and artificial breeding have been used as means of conservation for the walking catfish in their native range. Sexual maturity is cyclical and seasonal, with a peak coinciding with the seasonal summer rains. In uganda, the development of clarias culture is more related to its use as baits for fishing in lake victoria. Clarias gariepinus has all the qualities of an aggressive and successful invasive species. Water quality parameters such as ph and dissolved oxygen significantly decreased while total. Similarly to other species, china has adopted it within its ricefields and is currently among the main producing countries, even though this species does not appear separately in its production statistics. They are found throughout africa and the middle east, and live in freshwater lakes, rivers, and swamps, as well as humanmade habitats, such. Under natural condition of spawning, lower hatching rates have been reported for clarias gariepinus by various authors. Mature ayb was boiled, fermented and processed into meals.
Clarias is a genus of catfishes order siluriformes of the family clariidae, the airbreathing catfishes. Cross nigeria, sanaga, nyong, lobe and kribi cameroon, the ntem cameroon and gabon, mbiniwoleu gabon and equatorial guinea, komo gabon ref. Manual on african magur clarias gariepinus culture in bangladesh. The introduction of the larger african catfish clarias gariepinus has out competed the walking catfish and reduced the population of c. This is an omnivorous fish with a preference for a planktonic diet. Clarias gariepinus or african sharptooth catfish is a species of catfish of the family clariidae, the. Clarias batrachus was originally described as silurus batrachus linnaeus 1758. Clarias gariepinus, north african catfish search fishbase. The use of augmented loss functions for estimating dynamic. Actinopterygii rayfinned fishes siluriformes catfish clariidae airbreathing catfishes etymology. It also feeds on other types of food items such as insects, insect larvae, pupae, fish, and fish remains. Clarias gariepinus wikipedia, a enciclopedia livre. Some aspects of the reproductive biology, in the big clarias have been studied elsewhere by nawar and yoakim 1962. Aspects of the reproductive biology of clarias gariepinus.
Media in category clarias the following 16 files are in this category, out of 16 total. Pdf semen collection and preservation in african catfish. Pathological study of clarias gariepinus burchell, 1822 subadult artificially infected with pseudomonas aeruginosa article pdf available december 2014 with 120 reads how we measure reads. Suanyuk n1, rogge m, thune r, watthanaphiromsakul m, champhat n, wiangkum w. The name is derived from the greek chlaros, which means lively, in reference to the ability of the fish to live for a long time out of water. Described in most papers as a bottom feeder, which occasionally feeds at. Scientific note the introduction of the african catfish clarias. In the present study, unripe catfish were found all year round, indicating a continuous recruitment. The first species selected is the north african catfish clarias gariepinus, one. In southeast nigeria known from the osse, niger delta and cross ref. African catfish, biowaste management, growth the african cat fish, clarias gariepinus burchell familyclaridae is a remarkable and fascinating species, as it is extremely hardy and withstands adverse environmental conditions and habitat instability. Breeding performance of clarias gariepinus obtained from. Files are available under licenses specified on their description page. Growth performance of the african catfish, clarias gariepinus.
Occurs in shallow, open water and is capable of lying buried in mud for lengthy period if ponds and lakes evaporate during dry seasons ref. Heteroclarias and clarias gariepinus fed live daphnids performed better in terms of growth rate than those fed frozen daphnids, though, no significant difference p clarias gariepinus burchell, 1822, is a widespread african freshwater fish species which occurs naturally from the nile to the orange river. All structured data from the file and property namespaces is available under the creative commons cc0 license. A complete list of introduced species for even quite small areas of the world would be dauntingly long. This page was last edited on 10 december 2014, at 08. Also in the middle congo river basin in the rivers ja dja and sangha ref. Find species see list of species below select class. Clarias microphthalmus, pfeffer 1896 clarias micropthalmus, pfeffer 1896 clarias moorii, boulenger 1901 clarias mossambicus, peters 1852 clarias muelleri, pietschmann 1939 clarias robecchii, vinciguerra 1893 clarias syriacus, valenciennes 1840 clarias tsanensis, boulenger 1902 clarias vinciguerrae, boulenger 1902 clarius gariepinus, burchell 1822. Aspects of the biology of clarias gariepinus in anambra. The african catfish, clarias gariepinus, from lakes kariba, mcllwaine and kyle, was investigated for sexual maturity and fecundity. It has given a great boost to the aquaculture of clariid catfishes in many asian. African sharptooth catfish clarias gariepinus is a typical airbreathing catfish with a scaleless, bony elongated body with long dorsal and anal fins, and a helmet like head figure 1. The present study set out to investigate the haematological effects of tobacco leaf dust on african catfish, clarias gariepinus, fingerlings, with a mean weight of 3.
Response of clarias gariepinus to diets of african yam bean sphenostylis stenocarpa ayb subjected to two processing methods was assessed. Contrary to other clarias species, clarias gariepinus has a high number of gill rakers varying from 24110 ref. Four experimental diets were formulated at 0% control, 10%, 20% and 30% inclusion levels of treated leucaena leaf meal. Fishbase is being developed by the worldfish center and an international consortium. This is a list of the fish species found in india and is based on fishbase. Myxini cephalaspidomorphi elasmobranchii holocephali actinopterygii sarcopterygii. The biology of the introduced species clarias gariepinus in lagoa encantada ilheus, bahia state was studied. The morphology of the cleithrum appears as a useful character to distinguish the closely related catfish species, clarias anguillaris and c. Of the many clarias species cultured, clarias gariepinus has been subject to particularly intensive research. The zerovariate data come from fishbase anonymous, 2019a, except gsi and wet weight at birth, which come from legendre et. New clarias gariepinus and list of fishes of india see more list of introduced species. African catfish clarias gariepinus into brazilian inland waters. Mortality and pathology of hybrid catfish, clarias. Continue reading by clicking on the pdf download button top right of this window.
Clarias gariepinus or african sharptooth catfish is a species of catfish of the family clariidae, the airbreathing catfishes. Aspects of the reproductive biology of clarias gariepinus in. African catfish, clarias gariepinus burchell, 1822. Lm cm length cm age range y tm y sex of fish country locality 2. Clarias mossambicus clarias gariepinus in 1982 teugels revised the subgenus clarias and fou nd only two species c. Morphometric and meristic characteristics of clarias. Clarias gariepinus burchell, associated with edwardsiella ictaluri infection in southern thailand. Greek, chlaros lively, in reference to the ability of the fish to live for a long time out of water. Pdf response of african catfish, clarias gariepinus.
Pronunciation of clarias gariepinus with 3 audio pronunciations, 1 meaning, 1 translation and more for clarias gariepinus. Effect of triploidization on juvenile african catfish. Generally, clarias gariepinus have mostly been used as policefish to control overbreeding in mixedsex tilapia culture in earthen ponds. Pdf pafrican catfish clarias gariepinus burchell, 1822 has become a great important species in indonesian aquaculture. Pdf pathological study of clarias gariepinus burchell. Four four experimental diets were formulated at 0% control, 10%, 20% and 30% inclusion levels of treated leucaena leaf. The african catfish, clarias gariepinus, a model for the study of.
Triploid african catfish clarias gariepinus produced through cold shock 3 min post fertilization were compared to diploid offspring of the same parentage at 66 days of age. The results show that the mean body weight bw of c. Triploid fish were significantly shorter 11% and weighed less 18% than diploids but showed no significant difference in mortality or cannibalism, which can be an important source of losses under aquaculture. Clarias gariepinus an overview sciencedirect topics. They are found throughout africa and the middle east, and live in freshwater lakes, rivers, and swamps, as well as humanmade habitats, such as oxidation ponds or even urban sewage systems. Elsewhere, the difference seems less distinct, although the presence of a pointed cleithrum is typical for c. The first species selected is the north african catfish clarias gariepinus, one of the most important freshwater fish species in africa. Clarias gariepinus, north african catfish fishbase. Occurs along muddy shores and in papyrus swamps in lake victoria. Aspects of the biology of clarias gariepinus in anambra river. Growth performance of the african catfish, clarias. No information exists on the oocyte diameter, fecundity and sex ratio of this commercially important fish species of the anambra river basin.