THE MEDICALLY IMPORTANT MOLLUSCS OF INDONESIA

Machfudz Djajasasmita

THE MEDICALLY IMPORTANT MOLLUSCS OF INDONESIA

Abstract


At present in Indonesia 32 species of non-marine molluscs which belong to IS families have been known to be potentially of medicalor veterinary importance, since they are suspected to be capable in transmitting human and animal diseases. The brackish water family Potamididae comprises of 1 species; whereas the freshwater snails are : Viviparidae (3 sp.), Ampullariidae (3 sp.), Bythiniidae (1 sp.). Pomatiopsidae (1 sp.), Thiaridae (7 sp.), Lymnaeidae(l sp.) and Planorbidae (5 sp.); freshwater bivalve are: Corbiculidae (4 sp.); land snails are: Subulinidae (2 sp.), Achatinidae (1 sp.) and Bradybaenidae (1 sp.); land slug: Veronicelidae (2 sp.) Philomycidae (1 sp.) and Limacidae (1 sp.). All are common species which can be found in the vicinity of human habitation (ponds, rice-field, ditches, gardens etc). The parasitological studies on these molluscs are rather limited, only 9 species have been studied and confirmed to be the intermediate host of parasitic nematodes and nematodes; i.e. Oncomelania hupensis lindoensis, the intermediate host of the blood fluke Schistosoma japonica in Central Sulawesi: Pila suctata, Achatina fulica and Laevicaulis alte from several places in Sumatra, Java, Sulawesi and Flores have been found to be harbouring the larvae of the nematode Angiostrongylus cantonensis, the causative agent of eosinophilic meningoencephalitis; Bellamy a rudipelis, Gyraulus sarasinorum and Corbicula lindoensis were recorded as the intermediate host of the intestinal fluke Echinostoma lindoensis in Central Sulawesi; Lymnaea rubiginosa plays an important role in the life-cycle of the cattle liver fluke Fasciola gigantica and F.hepatica, which may reduce the national meat production; and Digoniostoma truncatum from Bali has been recorded naturally infected with radiae and cercariae of Paramphistoma sp., the causative agent of the fatal paramphistomiasis of cattle. Gyraulus convexiusculus is considered to be the most likely first intermediate host of Fasciolopsis buski infection in human in South Kalimantan. Among these moluscan species only Oncomelania h. lindoensis and A.fulica are the most studied species (life-cycle, transmission dynamics, control and ecological aspects), whereas the works on the other species are mostly emphasized on the taxonomic aspect.


Keywords


Molluscs

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Buletin Penelitian Kesehatan (Bulletin of Health Research, p-ISSN: 0125-9695. e-ISSN: 2338-3453) is published by Badan Penelitian dan Pengembangan Kesehatan, Ministry of Health of Republic of Indonesia
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