The authors studied a population of 582 gilthead sea breams (Sparus aurata), aged 25-600 days, in order to describe the abnormalities of the opercular complex. Particular attention was paid to: (1) the different degrees of abnormality of the opercular complex as a whole and of the individual dermal bones (preopercle, interopercle, subopercle and opercle) that compose it; (2) the ways in which the operculum folds into the gill cavity and the relevant histological characteristics. This study discusses the origin and nature of the abnormalities. Though these abnormalities have a major impact on market value and product image, and are often linked to other disorders in fish, they are still difficult to eliminate. Gaining a basic understanding of these abnormalities will be a first step towards reducing their occurrence.

Abnormalities of the operculum in gilthead sea bream (Sparus aurata): morphological description

BERALDO, Paola;CANAVESE, Bartolomeo;PINOSA, Maurizio;TIBALDI, Emilio
2003

Abstract

The authors studied a population of 582 gilthead sea breams (Sparus aurata), aged 25-600 days, in order to describe the abnormalities of the opercular complex. Particular attention was paid to: (1) the different degrees of abnormality of the opercular complex as a whole and of the individual dermal bones (preopercle, interopercle, subopercle and opercle) that compose it; (2) the ways in which the operculum folds into the gill cavity and the relevant histological characteristics. This study discusses the origin and nature of the abnormalities. Though these abnormalities have a major impact on market value and product image, and are often linked to other disorders in fish, they are still difficult to eliminate. Gaining a basic understanding of these abnormalities will be a first step towards reducing their occurrence.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11390/878059
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