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No Thumbnail AvailableProjectArtificial reproduction and the farming of the African catfish (Clarias gariepinus) in the lake basin area. Report of a mission, from 22-7-1994 to 16-8-1994 1994
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Book (series)Sturgeon Hatchery Manual 2013
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This Sturgeon Hatchery Manual includes the latest available scientific research findings and experiences and compiles advice given in earlier manuals and handbooks on sturgeon culture and reproduction practices. This document can be considered an update of the Sturgeon Breeding and Rearing Handbook (Chebanov, Galich and Chmyr, 2004), which was published in the Russian language. The Sturgeon Hatchery Manual was prepared in response to numerous requests for practical guidance on this s ubject from the Central Asian and Caucasus region to the Food and Agriculture Organization of the United Nations (FAO). This manual is targeted particularly at sturgeon farmers, sturgeon hatchery operators, hatchery technicians, and fisheries and aquaculture managers involved in sturgeon aquaculture development and the restocking and rehabilitation of sturgeon populations in the countries around the basins of the Black and Caspian seas. It aims to provide a practical handbook of mode rn sturgeon hatchery practices and management. The manual is available in the English, Russian and Turkish languages. The manual starts with a chapter on the taxonomy, biology, distribution and life histories of Azov-Black and Caspian Sea sturgeons. Subsequent chapters discuss the following aspects of sturgeon hatchery practices: hatchery design, collection and transportation of wild broodstock, broodstock management, spawning and gamete processing, fry and fingerling rearing, prod uction of live feeds, the technology of artificial reproduction, ecological- morphological and ethological-physiological express estimation of larval and fingerling (fry) viability, release of fingerlings into natural waterbodies, the formation of domesticated broodstock, basic sanitation and fish health measures, tagging, and early sexing and maturity determination in live sturgeons using ultrasound techniques. The manual also contains an extensive list of references, a list of Acip enseriformes and numerous figures, photographs and tables to support the guidance given on the various hatchery practices -
No Thumbnail AvailableProjectManual on seed production of African catfish (Clarias gariepinus)
Institutional Strengthening in the Fisheries Sector, Bangladesh
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No results found.Due to the difficulties of Tilapia culture in Africa, particularly, those resulting from overproduction and consequent stunting in growth, attention was focused on another African fish group, which included the large size African catfish, Clarias gariepinus (Burchell, 1882). For pond culture of this species initial attempts were made at the end of sixties and beginning of seventies. The main delimitation of pond culture of it was the inadequate supply of seed at that time (Hogendoorn, 1979). I n the past two decades, methods of fish seed production, intensive and pond rearing of Clarias gariepinus were developed. These studies were made mainly in Central African Republic, the Netherlands and Israel (Viveen et al., 1986). Moreover, necessary taxonomical and biological examination of the African catfish group were carried out in the same period, which revealed that Clarias lazera and Clarias gariepinus so long considered as two separate species, were same and hence they came under the s ame scientific name Clarias gariepinus (Burchell, 1822) (Janssen, 1987). Outside its natural habitat the species is cultured in cooling water of power stations in the Netherlands and also in hot springs in Hungary. The species was also introduced in Thailand, and China. At the end of 1989 the African catfish was introduced in Bangladesh from Thailand by the Ministry of Fisheries and Livestock, Government of Bangladesh. The African catfish (it is known as African magur in Bangladesh) is simil ar to a few Asian catfish species as Clarias batrachus and Clarias macrocephalus. The main distinguishing feature of the species is the shape of occipital process of skull (Figure 1).
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