Zoology
Permanent URI for this collectionhttp://repository.kln.ac.lk/handle/123456789/3752
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Item The distribution of Anostraca and Conchostraca (Crustacea) in the Jaffna Peninsula(The Fisheries Research Station, 1979) Selvarajah, N.; Costa, H.H.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 effect of exercise on the survival of Phoxinus phoxinus L. in sodium cyanide solutioins(Journal of Hydrobiologia, 1966) Costa, H.H.Item Responses of Gammarus pulex (L.) to Modified Environment II. Reactions to Abnormal Hydrogen Ion Concentrations(Journal of Crustaceana, 1967) Costa, H.H.Item Responses of Gammarus Pulex (L.) To Modified Environment Iii. Reactions to Low Oxygen Tensions(Journal of Crustaceana, 1967) Costa, H.H.Item Responses of Gammarus Pulex (L.) To Modified Environment(Journal of Crustaceana, 1966) Costa, H.H.Item Responses of freshwater animals to sodium cyanide solutions(National Science Foundation of Sri Lanka, 1965) Costa, H.H.Item Effects of some common insecticides and other environmental factors on the heart beat of Caridina pristis(Journal of Hydrobiologia, 1970) Costa, H.H.Item Avoidance of anoxic water by tadpoles of Rana temporaria(Journal of Hydrobiologia, 1967) Costa, H.H.