Detection of endoparasites in mackerel tuna (Euthynnus affinis) in north Sumatra province, Indonesia
2022
Eri Yusni | Agung Batubara | Cahya Frantika
The purpose of this study was to determine the species and the prevalence value of endoparasites that infect male and female mackerel tuna (<em>Euthynnus affinis</em>) in Tanjung Balai Port, North Sumatra Province. This research was conducted from August to September 2020. Research on endoparasite identification was carried out at the Laboratory of the Technical Implementation Unit for the Implementation of Fishery Product Quality (UPT PMHP), Medan. The method used in this study is a survey method with direct collection at the research location. The sample was taken using random sampling techniques. Endoparasite research was conducted on 30 fish samples, divided into 15 samples of male mackerel tuna with an average size of 26.92 cm and an average weight of 258.451 g, and 15 samples of female mackerel tuna with an average size of 29.50 cm and an average weight of 352.249 g. Four genera of endoparasites were found that infect male and female mackerel tuna, namely <em>Rhadinorhynchus</em> sp., <em>Echinorhynchus</em> sp., <em>Acanthocephalus</em> sp., and <em>Neoechinorhynchus</em> sp. with the highest prevalence value, namely the type of <em>Rhadinorhynchus</em> sp. 6.66% in the stomach and 76.66% in the intestine, the type of <em>Echinorhynchus </em>sp. 3.33% in the stomach and 33.33% in the intestine, as well as <em>Acanthocephalus</em> sp 26.66% and <em>Neoechinorhynchus</em> sp 13.33% only in the intestine.
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