Detection of parasites in butterfly peacock bass, Cichla ocellaris captured from Tasik Prima, Puchong, Selangor

Abdul Rahim Choo, Nurul Syazwani (2023) Detection of parasites in butterfly peacock bass, Cichla ocellaris captured from Tasik Prima, Puchong, Selangor. [Project Paper] (Submitted)

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Abstract

Fish being a high-protein source food and is one of the easiest foods to obtain, making it favorable to many. However, parasitic infection such as protozoa, crustacean as well as helminths are common in fish, which can greatly pose a risk of transmitting diseases to humans. Butterfly Peacock Bass (Cichla ocellaris), is an invasive and a piscivorous fish species that originates from the Amazon River and is popular among anglers as sport fish in Malaysia. While some practice catch and release as a hobby, others catch for their own consumption. The lack of study on C. ocellaris makes it a challenge as it raises an opportunity for zoonotic diseases to emerge. Thus, the purpose of this study was to detect the presence of parasites in C. ocellaris sampled from Tasik Prima, an ex-mine pool in Puchong, Selangor. A total of 10 C. ocellaris, consisting of juveniles and adults (n=5/group) were caught from Tasik Prima, Puchong. They were examined for ecto- and endoparasites. Samples from the skin, gills, and intestines were collected and examined via direct wet mount technique and observed under the compound microscope in-situ. The parasites identified were Dactylogyrus sp., and digenetic trematode. Total prevalence of parasites for both adults and juveniles C. ocellaris was 70% (3/5 in adults and 4/5 in juveniles). Ectoparasite Dactylogyrus sp. was only observed in 40% (2 of 5) of adult C. ocellaris. Total prevalence of encysted metacercariae (EMC) in gill filaments for both adult and juvenile was 70% (3/5 in adults and 4/5 in juveniles). Intensity of ectoparasite was the highest in gills for both juveniles and adults with 2.5 and 52.6 respectively. In conclusion, this study revealed that there is no significant burden of ecto- and/or endoparasite infection between adult and juvenile C. ocellaris captured from Tasik Prima, Puchong. The findings of this study can be used as a baseline data for further investigation on parasitic infestation in C. ocellaris in Malaysia.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms. Nordeena Abdul Aziz
Date Deposited:	30 Oct 2024 08:00
Last Modified:	30 Oct 2024 08:00
URI:	http://psaspb.upm.edu.my/id/eprint/2107

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