Comparación de la incidencia de malformaciones morfológicas y esqueléticas entre rodaballos (Scophthalmus maximus l.) diploides y triploides

• Main Authors: Hernández-Urcera, J. (Jorge), Torres-Núñez, E. (Eva), Magadán-Mompó, S. (Susana), Barreiro, J.D. (Daniel), Barreiro-Lois, A. (Andrés), Cal, R. (Rosa), Rotllant, J. (Josep)
• Other Authors: Fundación Observatorio Español de Acuicultura, Villarroel-Robinson, M. (Morris), Reig-Puig, L. (Lourdes), Almansa-Lagunas, C. (Clara)
• Format: Conference Object
• Language: unknown
• Published: Centro Oceanográfico de Vigo 2011
• Subjects: Scophthalmus maximus; Turbot
• Online Access: http://hdl.handle.net/10508/6229

Triploid fish are sterile and can be grown to the desired size without the problems related to reproduction. This is an interesting option for the marketing of large fish. Triploidy in some species is associated with morphological and skeletal deformations causing changes in the appearance of the fish and therefore also in their commercial value. This study compared the incidence of morphological and skeletal malformations in two groups of triploid turbot and diploid controls at 6 and 12 months of age. Morphological alterations were determined from measurements on external photographs of the upper side of the fish, and skeleton alterations were studied through X-ray photographs. The incidences of morphological and skeletal malformations were not significantly different (p>0.05) between ploidy in either of the two groups analyzed. These results suggest that triploidy per se does not induce malformations in turbot, although, it is possible that in some cases the induction treatment can cause these effects.