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Acta Adriatica, Vol. 56 No. 2, 2015.

Short communication, Note

Pug-headedness in the farmed triploid Atlantic cod, Gadus morhua Linnaeus, 1758 (Actinopterygii: Gadiformes: Gadidae) in Norway

Laith Jawad ; Flat Bush, Manukau, Auckland, New Zealand
Anders Thorsen ; Institute of Marine Research (IMR), Bergen, Norway
Per Fjelldal ; Institute of Marine Research (IMR), Matre Research Station, Matredal, Norway

Full text: english pdf 321 Kb

page 291-296

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Abstract

A farmed triploid pug-headed specimen of the Atlantic cod, Gadus morhua measuring 501 mm TL was obtained from IMR Parisvatn Field Station, Norway. The abnormal specimen had the following aberrant characters: short neurocranium and upper jaw, very short snout in comparison with the normal specimens, and asymmetrical upper and lower jaws. The right side of the head and the pre-maxilla were deformed, twisted downward and forward. The lower jaw was slightly distorted to the left. Causes for such aberrations are discussed.

Keywords

Jaw malformation; Norway; cage aquaculture; osteology; Atlantic cod; pug-headedness

Hrčak ID:

152260

URI

https://hrcak.srce.hr/152260

Publication date:

15.12.2015.

Article data in other languages: croatian

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