Scophthalmus maximus. We investigated the causes of albinism in cultured turbot by constructing 32 full-sib turbot families using standardized larval-rearing in 2009. We measured weight and documented the morphology of 16 full-sib families (including 6 pairs of half-sib families) with higher rates of albinism 85 days post hatching (dph). We compared the morphology of albino juveniles and normal juveniles in every F₂ family. In addition, we selected a fast growing family and three high-body type families as candidates for a selective breeding program. The skin pigmentation pattern could be classified into 3 types: albino, partial albino, and normal, in which the partial albino was classified as being within the range of albinism. The albino rate of every F₂ family was between 17.2 and 86.7%. There was a significant difference in the rate of albinism among half-sib families, which was likely caused by maternal inheritance and ovular quality. We also found a significant difference in total length, body length, total height, body height, and total weight (<0.05) between albino and normal juveniles in families C, Hand R. In addition, total height and body weight were significantly different among the 16 full sib families (<0.05). There was no significant difference in any of the measures between albino and normal juveniles within the same family, with the exception of families H and R. In summary, there were no significant differences in growth rates and body shape between albino and normal juveniles. Our results suggest that although genetics play a role in albinism, it is not the determining factor.