Zoology
Permanent URI for this collectionhttp://repository.kln.ac.lk/handle/123456789/3752
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Item Water quality criteria for pollution control(University of Malaya, Kuala Lumpur, 1982) Costa, H.H.Item The distribution of Anostraca and Conchostraca (Crustacea) in the Jaffna Peninsula(The Fisheries Research Station, 1979) Selvarajah, N.; Costa, H.H.Item Growth, mortality and seasonal abundance of grey mullets in Negombo estuary(Asian Fisheries Forum, Manila, Philippines, 1986) Wijeyaratne, M.J.S.; Costa, H.H.Item The susceptibility and resistance of fry and fingerlings of Oreochromis mossambicus Peters to some pesticides commonly used in Sri Lanka(Asian Fisheries Forum, Manila, Philippines, 1986) Shafiei, T.M.; Costa, H.H.Item Food, feeding and fecundity of the giant freshwater prawn Macrobrachium rosenbergii from natural habitats in Sri Lanka(Asian Fisheries Forum, Manila, Philippines, 1986) Costa, H.H.; Wanninayaka, T.B.Item Trypanosoma cruzi: Advantages of isolating bloodstream trypomastigotes by the carboxy methyl cellulose method(Oxford Journals, Medicine & Health Transactions RSTMH, 1988) de Silva, A.M.M.; Costa, H.H.; Takehara, H.A.; Mota, I.Item The food of the tadpoles of Rhacophorus cruciger cruciger (Blyth)(National Science Foundation of Sri Lanka, 1965) Costa, H.H.; Balasubramaniam, S.Item The Food and Feeding Chronology of Yellow Perch (Perca flavescens) in Lake Washington(International Review of Hydrobiology, 1979) Costa, H.H.Item The Effects of Some Heavy Metal Pollutants on the Heart Beat of Gammarus Pulex (L.)(Journal of Crustaceana, 1980) Costa, H.H.Item The effect of exercise on the survival of Phoxinus phoxinus L. in sodium cyanide solutioins(Journal of Hydrobiologia, 1966) Costa, H.H.