Identifikasi dan Prevalensi Endoparasit Pada Benih Ikan Lele (Clarias Sp.) di Kabupaten Sorong

Abstract

Sorong Regency in West Papua has significant potential for the development of freshwater aquaculture, particularly catfish (Clarias sp.). However, the success of this aquaculture practice is often hindered by endoparasitic infections affecting fish fingerlings, which can lead to reduced growth and even mass mortality. This study aimed to identify the types of endoparasites present in catfish (Clarias sp.) fingerlings, as well as to determine the prevalence, intensity, and dominance levels of endoparasites across different aquaculture sites in Sorong Regency. The research was conducted from February to March 2026, with samples collected from four locations: Aimas, Mariyat, Mayamuk, and Salawati. A total of 60 catfish fingerlings measuring 7–9 cm were examined at the Laboratory of the Fish, Animal, and Plant Quarantine Agency of Southwest Papua. The methods used included visual observation and microscopic identification of the liver, intestines, stomach, and muscle tissues. The observed parameters included condition factor, prevalence, intensity, and parasite dominance, as well as water quality measurements such as temperature, pH, dissolved oxygen (DO), and ammonia. The results showed that two main types of endoparasites infected the catfish fingerlings, namely Ascaris lumbricoides eggs and Contracaecum sp The eggs of Ascaris lumbricoides exhibited average prevalence rates of 86% in Aimas, 86% in Mariyat, 93% in Mayamuk, and 80% in Salawati. Meanwhile, Contracaecum sp. was found with varying prevalence, with the highest rate in Aimas (66%), followed by Mariyat (33%), Mayamuk (40%), and Salawati (40%).