DAO 38:33-38 (1999)  -  doi:10.3354/dao038033

Epizoic amoebae from the gills of turbot Scophthalmus maximus

Iva Dyková1,*, Antonio Figueras2, Beatriz Novoa2

1Institute of Parasitology, Academy of Sciences of the Czech Republic, Branisovska 31, 37005 Ceske Budejovice, Czech Republic
2Concejo Superior de Investigaciones Cientificas, Instituto de Investigaciones Marinas, Eduardo Cabello 6, 36208 Vigo, Spain
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ABSTRACT: Species of amoebae belonging to the genera Platyamoeba Page, 1969, Vannella Bovee, 1965 and Flabellula Schaeffer, 1926 were found to accompany Paramoeba sp., the agent of amoebic gill disease (AGD), in clinically diseased turbots. The same community of epizoic gymnamoebae was found on the gills of turbots which revealed no gill abnormalities but slight behavioral signs indicative of suboptimal health status. The assemblage of the above-mentioned free-living amoebae capable of colonizing gill tissue of turbots was supplemented with species recognized in samples fixed from primary isolates for transmission electron microscopy. The pathogenic potential of epizoic gill amoebae in turbots is discussed.


KEY WORDS: Epizoic amoebae · Gill infection · Scophthalmus maximus · Mariculture


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