Acta Ichthyologica et Piscatoria 35(1): 61-63, doi: 10.3750/AIP2005.35.1.08
Scale deformities in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) from Sudan
expand article infoL.A. Jawad
Open Access
Abstract
Scale deformity in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) is reported for the first time from Dongola, north of Sudan. The abnormal scales are fused pairs, with two well-developed foci. Developmental irregularity, probably caused by partially arrested growth, is believed to be the cause of such deformity.
Keywords
fish, scale abnormality, Nile tilapia, Oreochromis niloticus, adverse environment, Sudan