December 2007

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TEM micrograph of trofozoites and meront stages in a Cryptosporidim scophtalmi n. sp. infection in turbot (Psetta maxima)

Detailed information

History: From 1997 to 2000 a parasitological survey was carried out in different turbot farms in NW Spain involving more than 8000 fish.

Diagnosis: TEM micrograph of trofozoites and meront stages in a Cryptosporidim scophtalmi n. sp. infection in turbot (Psetta maxima).

Autopsy findings: Intestinal distension arising from mucous intestinal contents and gas was observed in some fish. Other coelomic viscera were normal. In Giemsa-stained mucosal scrapings ooquist showing metachromasia were detected.

Photo by: Maria Isabel Quiroga (author), José María Nieto (editor)