Identifikasi Dan Prevalensi Ektoparasit Pada Osphronemus gouramy Di Kolam Budidaya Desa Sumokembangsri Kabupaten Sidoarjo

Abstract

Gourami fish (Osphronemus gouramy) is one of the freshwater fish species widely cultivated in Sumokembangsri Village, Sidoarjo Regency. One of the challenges in gourami farming is parasitic infections, which can cause losses such as slow growth and decreased harvest quality. A study was conducted to identify the types of ectoparasites, as well as to measure the prevalence rate, infection intensity, and water quality of gourami fry in the aquaculture ponds of Sumokembangsri Village. The method used was observation, involving the examination of ectoparasites on the surface of the fish's body by collecting mucus, fins, and gills. The observations revealed two genera of ectoparasites, namely Trichodina sp. and Dactylogyrus sp. The prevalence of Trichodina sp. infection reached 100%, categorized as "always," while the prevalence of Dactylogyrus sp. was 60%, categorized as "frequent." The infection intensity of Trichodina sp. was 1.6 individuals per fish, while Dactylogyrus sp. had an intensity of 2.2 individuals per fish. Both parasites were classified as having "low" intensity. The results of water quality measurements indicated that the water conditions were suitable to support the survival of gourami fish.

 Keywords; Ectoparasite, Guramy, Infection, Prevalence