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Isopodosis of sea bass and sea bream
(Flabellifera, Cymothoidae, Ceratothoa oestroides)

Lesions

Ceratothoa oestroides pulli II larvae seen on the pharyngeal teeth and among the gill lamellae of a sea bass. Gill inflammation and focal necrosis of the epithelium is evident. The operculum has been removed to facilitate observation.

 

Adult isopods attached in the buccal cavity of sea bass cause slackening of the underlying tissues resulting in the "bag-shape" of the lower jaw.

The gills of sea bass are inflamed with necrotic areas due to the action of pulli II larvae.

 

Severe eye, mouth and skin damage on the head of sea bass fry suffering attacks by Ceratothoa oestroides pulli II larvae.


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Author: Dr. Panos Varvarigos
Freelance Veterinarian - Fish Pathologist, Athens, Greece.


AquaHealthTM
Laboratory.

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Every effort has been made to ensure that the information is accurate until the date of last editing. It is based upon the accumulated personal experience of applied veterinary work. The author cannot take responsibility for incorrect interpretation or any resulting consequences. The contents may be used as an educational guide and are definitely not meant to become a stand-alone diagnostic tool or operations manual.

 

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