1. Department of Aquaculture and FisheriesUniversity of Ilorin Ilorin Nigeria
2. Department of Aquaculture and Fisheries ManagementUniversity of Ibadan Ibadan Nigeria
3. Department of Veterinary PathologyUniversity of Ibadan Ibadan Nigeria
4. Central Laboratory for Aquaculture ResearchDepartment of Fish Biology and Ecology Abo‐Hammad Sharqia Egypt