Goezia spinulosa (Nematoda: Raphidascarididae), a pathogenic parasite of the arapaima Arapaima gigas (Osteichthyes)

0328292 - BC 2010 RIV CZ eng J - Článek v odborném periodiku
Santos, C. P. - Moravec, František
Goezia spinulosa (Nematoda: Raphidascarididae), a pathogenic parasite of the arapaima Arapaima gigas (Osteichthyes).
Folia Parasitologica. Roč. 56, č. 1 (2009), s. 55-63. ISSN 0015-5683. E-ISSN 1803-6465
Grant CEP: GA MŠMT LC522; GA ČR(CZ) GA524/06/0170
Výzkumný záměr: CEZ:AV0Z60220518
Klíčová slova: Goezia * Arapaima * Brazil
Kód oboru RIV: GJ - Choroby a škůdci zvířat, veterinární medicína
Impakt faktor: 1.266, rok: 2009

The nematode Goezia spinulosa (Diesing, 1839) is redescribed based on specimens found naturally infected arapaima Arapaima gigas (Schinz) from the Mexiana Island, Amazon River Delta, Brazil. Light and electron microscopy examinations revealed previously unreported or inaccurately described morphological features, such as the position of the excretory pore, phasmids in the male or the number (4) of postanal papillae. The morphology of G. spinulosa is compared with that of other 4 congeneric species parasitizing freshwater fishes in South America. This nematode seems to be one of the most pathogenic parasites of A. gigas in the Mexiana Island, which are responsible for a high mortality of cultured arapaima fingerlings. Apparently, the source of G. spinulosa infection for arapaima fingerlings cultured in tanks was the infected plankton collected in the localities inhabited by wild arapaimas.
Trvalý link: http://hdl.handle.net/11104/0174639