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The effects of culture-site, depth, season, and stock source on the prevalence of Marteilia refringens in cultured mussels (Mytilus galloprovincialis Lmk.) from Galicia, Spain

AuthorsRobledo, José A. F.; Figueras Huerta, Antonio
Issue Date1995
PublisherAmerican Society of Parasitologists
CitationJournal of Parasitology 81: 354-363 (1995)
AbstractSamples of a marteiliad parasite in Mytilus galloprovincialis Lmk. from NW Spain were identified as Marteilia refringens, using light and electron microscopy. The most important lesions in the mussel tissues were found in the digestive tubules at the moment of the release of the sporangia, resulting in a breakage of the epithelial cells of the digestive tubules. The plasmodia of a Marteilia-like organism were also found in the gills, accompanied by a severe host reaction in 1 of the 4,200 examined mussels. The prevalence of the M. refringens parasite was monitored for 4 yr and correlation was found with prevalence, site, and depth of mussel culture. No correlation was found with geographical origin of the mussels. Mussels collected from the inner part of the Ria de Vigo were more frequently infected (38.5%) than those from the middle (29.0%) and outer parts (5.5%). Mussels from 2-m samples showed a higher mean prevalence of M. refringens than those from the 5-m samples (13.3 and 8.3%, respectively).
Identifiersdoi: 10.2307/3283816
issn: 0022-3395
Appears in Collections:(IIM) Artículos
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