Identification and distribution of Lernaea spp. in Peninsular Malaysia
1986
Sharif, M. | Sommerville, C. (Pertanian Malaysia Univ., Serdang (Malaysia). Faculty of Fisheries and Marine Science)
This survey on the identification and distribution of Lernaea spp. in the Peninsular Malaysia involved the leading importers of fish fry, all the eight government breeding stations and 104 private ponds selected from all geographic areas of the Peninsula. The study revealed that Lernaea infection was present in all eight government-owned fish breeding stations in 69.2% of the 104 private fishponds and in four out of five consignments of fingerlings imported from Taiwan through the importing agency. The source of Lernaea at the private farms, was traced to the government breeding stations and the importing agency. Lernaea cyprinacea "Asian" from which is more widely distributed and L. polynorpha where the species present in the ponds. L. cyprinacea was found to be widespread at a wide range of temperature (17-32 deg C) and pH of 5.6-9.0. L. polymorpha infected only Aristichthys nobilis whereas L. cyprinacea infected a wide range of hosts. Trichogaster pectoralis and Tilapia spp. were not susceptible to infection. The effect of the widespread distribution of Lernaea on the aquaculture industry is discussed.
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