Analysis of Invasion of Fungal Infection in Some Species of Fish

Abstract

Disease outbreaks that kill off fish and cost money are a persistent difficulty for the aquaculture industry. The researchers investigated the prevalence of fungal infections in popular ornamental and edible fish species. Fungal isolation was performed on samples from fish suffering from dermal lesions, including African sharp-tooth catfish (Clarias gariepinus), snakeskin gourami (Trichogaster pectoralis), gold gourami (Trichopodus trichopterus), angelfish (Pterophyllum scalare), and red hybrid tilapia (Oreochromis spp.). Fifteen different types of fungi were found and identified by their distinct colony macro and micro-morphologies. An arrangement study of the ribosomal ITS-internal transcribed spacer region was used to determine the identities of the isolates. It was shown that Geotrichum, Aspergillus, and Pestalotiopsis were more common than Pseudopestalotiopsis, Trichoderma, Apiotrichum (Trichosporon), and Flavodon. This research demonstrated the value of appropriate hatchery environments and organization approaches in lowering the prevalence of fungal infections.