Effect of Dactylogyrus Parasite on External Organs of the Nile Tilapia (Oreochromis niloticus)

Ouaissa, Khadija; Hmamou, M’hamed; Ennaciri, Youssef; Hasnaoui, Mustapha

doi:10.21608/ejabf.2024.369527

Effect of Dactylogyrus Parasite on External Organs of the Nile Tilapia (Oreochromis niloticus)

Document Type : Original Article

Authors

¹ Higher institute of maritime Fisheries, Agadir Environmental, Ecological and Agro-Industrial Engineering Laboratory. Department of Biology, Faculty of Sciences and Techniques. University Sultan MoulaySlimane. M’Ghila,Beni-Mellal, Morocco

² Higher institute of maritime Fisheries, Agadir

³ Environmental, Ecological and Agro-Industrial Engineering Laboratory. Department of Biology, Faculty of Sciences and Techniques. University Sultan MoulaySlimane. M’Ghila,Beni-Mellal, Morocco

10.21608/ejabf.2024.369527

Abstract

This study aimed to identify the type of ectoparasite in the adult tilapia. For this study, 20 specimens of the tilapia fish, with an average weight of 247.68± 69.47g, were collected. The fish samples were placed in the rearing unit at the Higher Institute of Maritime Fisheries, Agadir, Morocco. The study was conducted from October 2023 to April 2024. 16 samples were examined in the physiology and oceanography laboratory. The samples were eviscerated to detect the parasite. The fish had ectoparasites in the gills, eyes, and on scales. The parasite was identified as Dactylogyrus sp. and was found only on the tilapia’s scales and in its gills.