| a revised description of gyrodactylus cichlidarum paperna, 1968 (gyrodactylidae) from the nile tilapia, oreochromis niloticus niloticus (cichlidae), and its synonymy with g. niloticus cone, arthur et bondad-reantaso, 1995. | a recent infestation of gyrodactylus cichlidarum paperna, 1968 on yolk sac fry of nile tilapia, oreochromis niloticus niloticus (l.), in an isolated aquarium system in the u.k. resulted in high mortalities and provided an opportunity to study this species in greater detail. a tentative identification was made using the measurements and drawings of the ventral bar and hamuli provided in the original description; however, details on the morphology of the marginal hooks were lacking. a comparison o ... | 2007 | 17886742 |
| gyrodactylus species (monogenea: gyrodactylidae) on the cichlid fishes of senegal, with the description of gyrodactylus ergensi n. sp. from mango tilapia, sarotherodon galilaeus l. (teleostei: cichilidae). | the first record of gyrodactylus species nordmann, 1832 on the cichlid fish from senegal is reported. gyrodactylus parasites were found on four host species studied, hemichromis fasciatus, hemichromis letournaeuxi, oreochromis niloticus, and sarotherodon galilaeus. gyrodactylus cichlidarum paperna (bamidgeh 13:14-29, 1968) were collected from h. fasciatus, and its identity was confirmed based on the morphometrical comparison with the holotype specimens of g. cichlidarum. only one specimen of gyr ... | 2009 | 19838735 |
| microhabitat use, not temperature, regulates intensity of gyrodactylus cichlidarum long-term infection on farmed tilapia-are parasites evading competition or immunity? | gyrodactylids (monogenea) are ectoparasites of fish, some of which negatively affect commercially valuable fishes. temperature strongly regulates population dynamics of these viviparous flatworms in farmed and wild fish populations, with most gyrodactylid species showing positive temperature-abundance associations. in agreement with epidemiological theory, numerous laboratory studies demonstrate that these parasites cannot persist in confined fish populations without periodic introduction of sus ... | 2011 | 21840127 |
| triple trouble? invasive poeciliid fishes carry the introduced tilapia pathogen gyrodactylus cichlidarum in the mexican highlands. | as part of ongoing surveys of the gyrodactylid parasite fauna of freshwater fishes in mexico, we recorded the infection of three species of poeciliids (poecilia mexicana, poeciliopsis gracilis, and pseudoxiphophorus bimaculatus [syn.=heterandria bimaculata]) with gyrodactylus cichlidarum, a monogenean parasite of cichlid fishes, which has been co-introduced globally with its translocated, african "tilapia" hosts. this tilapia pathogen was found on poeciliid fishes both within their native distri ... | 2017 | 28215865 |
| geographical distribution of protozoan and metazoan parasites of farmed nile tilapia oreochromis niloticus (l.) (perciformes: cichlidae) in yucatán, méxico. | in yucatán state, southern méxico, as in many other parts of the world where tilapia has been introduced for aquaculture, the deficient application of management measures has led to the establishment of non-native parasites. the aims of this study were to describe the geographical distribution of protozoan and helminth parasites of farmed nile tilapia oreochromis niloticus (l.) throughout the yucatán and to examine the potential statistical associations of the prevalence and mean abundance of th ... | 2016 | 26842384 |
| non-lethal detection of dna from cichlidogyrus spp. (monogenea, ancyrocephalinae) in gill mucus of the nile tilapia oreochromis niloticus. | infection of nile tilapia oreochromis niloticus by monogeneans of the genus cichlidogyrus is harmful. currently, diagnosis of this infection is based on invasive techniques and the identification of isolated parasites by their morphology. to facilitate diagnosis, we have developed a non-lethal polymerase chain reaction (pcr) test for detection of cichlidogyrus spp. dna in the gill mucus of o. niloticus, using 5 pairs of specific primers based on cichlidogyrus sclerosus 28s rrna (cicly 1 to cicly ... | 2012 | 22436463 |