Bopyrid isopods parasitizing on the cultured fresh water prawn,Macrobrachiummalcolmsoniiin South India.
The bopyrid isopods are common in wildMacrobrachiumspp. but not common in aquaculture condition. This is the first study that reports the parasitizing of bopyrid isopods on the culturedM. malcolmsonii. Bopyrid isopod (Probopyrus buitendijki) was identified in the branchial cavities of the fresh water prawn,M. malcolmsoniifrom grow-out culture pond at Kuriyamangalam, India.Macrobrachium malcolmsoniiis a new host forP. buitendijki. A total of 1323M. malcolmsoniiwere checked for this study. The overall prevalence of the parasitic infestation was reached 46.2 %. The parasitic infection was higher in female (83 %) than in male (3.4 %). Highest prevalence of infestation was found in the median size group (7-8 cm) (58.7 %). Infected females were not berried unlike uninfected prawns. The parasites cause infertility and does not found any organ deformities due to the infestation. The parasite was inversely attached in the gill chamber with no lesion on the gill but the infected branchial chamber became bulged.
Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai, Tamilnadu 608 502 India.
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Gopalakrishnan
Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai, Tamilnadu 608 502 India.
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Raja
UMR 5119 Ecosym (CNRS-UM2-IRD-UM1-IFREMER), Equipe Adaptation Ecophysiologique et Ontogenese, Universite Montpellier 2, CC. 092, Place E. Bataillon, 34095 Montpellier Cedex 05, France.
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Trilles
Inocem Research Station, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia.
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Rajkumar
Inocem Research Station, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia.|Department of Marine Science, Kulliyyah of Science, International Islamic University Malaysia, Jalan Istana, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia.
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Rahman
Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai, Tamilnadu 608 502 India.
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Saravanakumar
Bopyrid isopod; Fresh water prawn; Macrobrachium malcolmsonii; Prevalence; Probopyrus buitendijki