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Browsing by Author Costa, H.H.

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Issue DateTitleAuthor(s)
1970Effects of some common insecticides and other environmental factors on the heart beat of Caridina pristisCosta, H.H.
1980The Effects of Some Heavy Metal Pollutants on the Heart Beat of Gammarus Pulex (L.)Costa, H.H.
1989Epidemiology of the epizootic ulcerative syndrome occurring for the first time among fish in Sri LankaCosta, H.H.; Wijeyaratne, M.J.S.
1986An experimental study on the culture of fry of Oreochromis mossambicus (Peters) in a peaty swamp in Sri Lanka using cow dung and poultry manure as fertilizerCosta, H.H.; Keembiahetty, C.N.
1987Fishery, seasonal abundance and mortality of grey mullets (Pisces; Mugilidae)in Negombo lagoon, Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1979The Food and Feeding Chronology of Yellow Perch (Perca flavescens) in Lake WashingtonCosta, H.H.
1990FOOD AND FEEDING OF TWO SPECIES OF GREY MULLETS VALAMUGIL BUCHANANI (BLEEKER)AND LIZA VAIGIENSIS QUOY AND GAIMARD INHABITING BRACKISHWATER ENVIRONMENTS IN SRI LANKAWijeyaratne, M.J.S.; Costa, H.H.
1965The food of the tadpoles of Rhacophorus cruciger cruciger (Blyth)Costa, H.H.; Balasubramaniam, S.
1986Food, feeding and fecundity of the giant freshwater prawn Macrobrachium rosenbergii from natural habitats in Sri LankaCosta, H.H.; Wanninayaka, T.B.
1986Food, feeding and fecundity of the giant freshwater prawn Macrobrachium rosenbergii from natural habitats in Sri LankaCosta, H.H.; Wanninayaka, T.B.
1987Foraging behaviour and echolocation in the rufous horseshoe bat (Rhinolophus rouxi) of Sri LankaNeuweiler, G.; Metzner, W.; Heilmann, U.; Rübsamen, R.; Eckrich, M.; Costa, H.H.
1986Growth, mortality and seasonal abundance of grey mullets in Negombo estuaryWijeyaratne, M.J.S.; Costa, H.H.
1988Hydrobiology and fish production potential of major freshwater reservoirs in Hambantota districtDaniel, D.J.; Costa, H.H.; Wijeyaratne, M.J.S.
2005Inflight and Outflight Activity Patterns of Five Species of Cave Dwelling Bats in Sri LankaYapa, W.B.; Ratnasooriya, W.D.; Costa, H.H.; Rubsamen, R.
1995The invertebrate fauna colonizing two submerged aquatic plants in the stream at Horton Plains, Sri LankaGanehiarachchi G.A.S.M.; Costa, H.H.
1983Limnology and Fish production potential of some reservoirs in Anuradhapura District, Sri LankaAmarasinghe, U.S.; Costa, H.H.; Wijeyaratne, M.J.S.
1984Morphological and histological changes in the gonads of the estuarine cichlid fish Etroplussuratensis (Bloch) during gonadal developmentPathiratne, A.; Costa, H.H.
2004Morphometry, food, feeding and reproductive biology of Hemiramphus gaimardi (Pisces, Hemirampidae) from some reservoirs in Sri LankaRamasinghe, N.; Costa, H.H.
2004Morphometry, food, feeding and reproductive biology of Xenentodon cancila - Hamilton Buchanan (Pisces, Belonidae) from some streams in Sri LankaEkanayake, V.G.S.; Costa, H.H.
1986Mosquito control with larvivorous fishWickramasinghe, M.B.; Costa, H.H.
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