The study of ectoparasite in freshwater fish hampala macrolepidota (sebarau) at Perlok Jerantut, Pahang

Abstract

30 samples of Hampala macrolepidota (Sebarau) were obtained from Pusat Pengembangan Akuakultur Perlok at Jerantut, Pahang. To diagnose for ectoparasite, 8 samples of fish were taken during the first sampling and the remaining of 22 samples of fish were used during the second sampling. During diagnosing process, fish weight and length (total, fork and standard length) were measured. Weather condition and also water parameter such as temperature and dissolve oxygen (DO) were monitored. As a result, three types of ectoparasites were found on the fishes. One parasite was identified up to species, that was Piscinoodinium pillulare while the other two were known as Dactylogurus sp. and Metacercaria (Digenean larvae). From the study, Piscinoodinium pillulare gives the highest number of parasite found with 2366 individuals, followed by Dactylogyrus sp. with 346 individuals and the lowest is Metacercaria with 188 individuals. Statistical analysis was done to find the prevalence, percentage abundance and mean intensity for each type of the parasite. The relationship between number of parasite with water quality, weather condition, water treatment, and position of gill arch were also discussed.