The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia

Abstract. Kolia WSK, Sunarto, Widiyani T. 2021. The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia. Biodiversitas 22: 1975-1980. There is an expansion of fish culture in Indonesia, but there is a dearth of information...

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Autores principales:	Waleed Kolia, SUNARTO SUNARTO, TETRI WIDIYANI
Formato:	article
Lenguaje:	EN
Publicado:	MBI & UNS Solo 2021
Materias:	ciliated protozoa, ectoparasitic, fish disease, floating cages, nile tilapia, oreochromis niloticus Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/4511ff3852074afcbb694c862e8467da
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spelling	oai:doaj.org-article:4511ff3852074afcbb694c862e8467da2021-11-22T00:57:37ZThe infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia1412-033X2085-472210.13057/biodiv/d220445https://doaj.org/article/4511ff3852074afcbb694c862e8467da2021-04-01T00:00:00Zhttps://smujo.id/biodiv/article/view/7974https://doaj.org/toc/1412-033Xhttps://doaj.org/toc/2085-4722Abstract. Kolia WSK, Sunarto, Widiyani T. 2021. The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia. Biodiversitas 22: 1975-1980. There is an expansion of fish culture in Indonesia, but there is a dearth of information on the parasitic infecting cultured fish. This study was conducted to investigate the occurrence of ectoparasitic protozoans on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs (i.e., Cengklik, Mulur, and Gajah Mungkur) in Central Java, Indonesia, and to determine the prevalence, mean abundance, and mean intensity of such parasites. A total of 189 samples were collected from different cages. The sex of the fishes was determined and their lengths and weights were measured. The gills, fins, and skin were examined for ectoparasitic protozoa using a light microscope. Among the examined fishes, 146 samples were infected at the rate of 77.2 %. Mulur reservoir had the highest prevalence rate with 90.4%, followed by Cengklik and Gajah Mungkur with 82.5 % and, 58.7%, respectively. We found female fishes were more susceptible to the infection than males. Seven parasite species were identified, namely: Tetrahymena corlissi, Apiosoma spp., Trichodina spp., Cryptobia spp., Chilodonella spp., Ambiphrya spp., and Ichthyophthirius multifiliis. The protozoan parasite Trichodina spp. recorded the highest prevalence, mean intensity, and mean abundance among all the other protozoan species at the three reservoirs. The results provided a significant difference at (p<0.01) in the total number of parasites among the reservoirs. Despite the parasite infection, the physical and chemical parameters of the water of the three reservoirs were within the recommended range for the culture of Nile tilapia under the cage systems.Waleed KoliaSUNARTO SUNARTOTETRI WIDIYANIMBI & UNS Soloarticleciliated protozoa, ectoparasitic, fish disease, floating cages, nile tilapia, oreochromis niloticusBiology (General)QH301-705.5ENBiodiversitas, Vol 22, Iss 4 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ciliated protozoa, ectoparasitic, fish disease, floating cages, nile tilapia, oreochromis niloticus Biology (General) QH301-705.5
spellingShingle	ciliated protozoa, ectoparasitic, fish disease, floating cages, nile tilapia, oreochromis niloticus Biology (General) QH301-705.5 Waleed Kolia SUNARTO SUNARTO TETRI WIDIYANI The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
description	Abstract. Kolia WSK, Sunarto, Widiyani T. 2021. The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia. Biodiversitas 22: 1975-1980. There is an expansion of fish culture in Indonesia, but there is a dearth of information on the parasitic infecting cultured fish. This study was conducted to investigate the occurrence of ectoparasitic protozoans on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs (i.e., Cengklik, Mulur, and Gajah Mungkur) in Central Java, Indonesia, and to determine the prevalence, mean abundance, and mean intensity of such parasites. A total of 189 samples were collected from different cages. The sex of the fishes was determined and their lengths and weights were measured. The gills, fins, and skin were examined for ectoparasitic protozoa using a light microscope. Among the examined fishes, 146 samples were infected at the rate of 77.2 %. Mulur reservoir had the highest prevalence rate with 90.4%, followed by Cengklik and Gajah Mungkur with 82.5 % and, 58.7%, respectively. We found female fishes were more susceptible to the infection than males. Seven parasite species were identified, namely: Tetrahymena corlissi, Apiosoma spp., Trichodina spp., Cryptobia spp., Chilodonella spp., Ambiphrya spp., and Ichthyophthirius multifiliis. The protozoan parasite Trichodina spp. recorded the highest prevalence, mean intensity, and mean abundance among all the other protozoan species at the three reservoirs. The results provided a significant difference at (p<0.01) in the total number of parasites among the reservoirs. Despite the parasite infection, the physical and chemical parameters of the water of the three reservoirs were within the recommended range for the culture of Nile tilapia under the cage systems.
format	article
author	Waleed Kolia SUNARTO SUNARTO TETRI WIDIYANI
author_facet	Waleed Kolia SUNARTO SUNARTO TETRI WIDIYANI
author_sort	Waleed Kolia
title	The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
title_short	The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
title_full	The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
title_fullStr	The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
title_full_unstemmed	The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia
title_sort	infection of ectoparasitic protozoa on farmed nile tilapia (oreochromis niloticus) at three reservoirs in central java, indonesia
publisher	MBI & UNS Solo
publishDate	2021
url	https://doaj.org/article/4511ff3852074afcbb694c862e8467da
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The infection of ectoparasitic protozoa on farmed Nile tilapia (Oreochromis niloticus) at three reservoirs in Central Java, Indonesia

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