Prevalence and distribution of Anisakis sp worms in internal organs of Tuna (Euthynnus affinis) at fish auction in Pekalongan city

Abstract

The purpose of this paper was to determine and show the result of the prevalence of the presence of Anisakis worms as well as the distribution of Anisakis worms in parts of the body in Tuna. This research was conducted in May 2017 at the Fish auction in Pekalongan City. The tuna used in this study are grouped into 2 sizes, group I with sizes 20 - 26 cm and group II with sizes 27-33 cm. The number of fish used was 60. Furthermore, observations were made on internal organs, The research method is a cross-section or one sampling. Data were then tabulated and analyzed by t-test to test the differences between the two groups. The results showed that the fish size group gave a significant effect on the number of Anisakis in the body of fish (p <0.05). The prevalence of fish in group II was 85% while the group I was 70%. The intestine becomes the most internal organ found as much as 120 Anisakis, followed by 75 stomachs, muscle 20 and abdominal cavity 45 in group II. While group I found 70 of Anisakis sp in the intestine, 50 in the stomach and 40 abdominal cavity and 30 muscle tissue.