![]() ![]() Très largement distribué dans les eaux côtières et estuaires des zones tropicales et sous-tropicales des océans Atlantique, Pacifique et Indien. Induced breeding by hypophysation has been successful in China (Taiwan), Israel, Hawaii (U.S.A.) and India. Average growth: 14 cm, 24 cm, 33 cm, 39 cm in the first four years and 50 cm in six to seven years. Food: fry - phyto and zooplankton with diatoms and epiphytic cyanophyceae adult - algae, debris and detritus and decayed plants in ponds. Generally cultured in brackish waters, and occasionally in fresh waters as in India. Cultivated in many different countries like Japan, Hong-Kong, China, Philippines, Korea, India, Egypt, Israel, Italy, France, U.S.A., Hawaii, etc., as primary, secondary or experimental crop. (Mugilidae) Very widely distributed in coastal waters and estuaries of tropical and sub-tropical zones of Atlantic, Pacific and Indian Oceans. INFORMATION DOCUMENTS : (continued) PRELIMINARY CATALOGUE OF CULTIVATED AND CULTIVABLE FISH SPECIES INĬATALOGUE PRELIMINAIRE DE POISSONS D'ELEVAGE DANS LE SAHEL, DEįAIT ET EN POTENTIEL (continued) Mugil cephalus ![]() This study discusses the host specificity of gyrodactylids on commercial cichlid species and the potential repercussions of their movement on stocks of fish into new environments where cichlids are already present.Report of the Consultation on Fisheries problems in the sahelian zone - Bamako, Mali, 13-20 November 1974 ![]() cichlidarum being the most frequently encountered and being associated with mortalities of juvenile O. This study confirms that Nile and Mozambique tilapia harbour a number of different species of Gyrodactylus, with G. cichlidarum, but the two species were found to differ by 42 nucleotide substitutions (24 within the 342 bp long ITS1 18 within the 303 bp long ITS2) and by 1 insertion/deletion. nov., however, are morphologically similar to those of G. cichlidarum, a species commonly found on O. from a South African population of Mozambique tilapia, Oreochromis mossambicus and, Gyrodactylus yacatli sp. from the Nile tilapia, Oreochromis niloticus niloticus, and from an unconfirmed cichlid in Ethiopia Gyrodactylus ulinganisus sp. Three new species of Gyrodactylus are described from two species of Oreochromis (Cichlidae): Gyrodactylus hildae sp. niloticus, being found in 13 of the 15 countries sampled. cichlidarum is the dominant species infecting O. cichlidarum and therefore represent new species no sequences were obtained from Gyrodactylus sp. 3 (the morphologically-cryptic group of South African specimens from O. Molecular data also confirmed that the DNA sequence of Gyrodactylus sp. Molecular analyses comparing the sequence of the ribosomal transcribed spacer regions (ITS 1 and 2) and the 5.8S gene from the non-hook bearing half of worms representative for each population and for each cluster of parasites, confirmed the presence of G. 2) (5) nine gyrodactylids from South African O. 1) (4) four specimens collected from an Ethiopian population nominally identified as O. shariffi paratype (3) three specimens with pronounced ventral bar processes collected from two populations of Mexican O. Principal component analyses (PCA) identified five distinct clusters: (1) a cluster representing G. Representative specimens from each population were bisected, each half being used for morphological and molecular analyses. cichlidarum) and Gyrodactylus shariffi Cone, Arthur et Bondad-Reantaso, 1995. niloticus or Mozambique tilapia, Oreochromis mossambicus, were sampled from fourteen countries and compared with type material of Gyrodactylus cichlidarum Paperna, 1968, Gyrodactylus niloticus (syn. In this study, 26 populations of Gyrodactylus parasitising either O. Gyrodactylus infections in intensively-reared populations of Nile tilapia, Oreochromis niloticus niloticus, have been associated world-wide with high mortalities of juvenile fish. ![]()
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