Browsing by Author Costa, H.H.

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Issue DateTitleAuthor(s)
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.
1987On management of the finfish fishery of the Negombo lagoon, Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1986On the biology of an estuarine population of grey mullet Mugil cephalus L. in Negombo lagoon Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1988Reproductive strategy and feeding of Dussumier's mullet, Liza dussumieri Valenciennes from a coastal lagoon in Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1992Resource partitioning of two commercially important cichlid species in there minor perennial reservoirs in the north-western province of Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1965Responses of freshwater animals to sodium cyanide solutionsCosta, H.H.
1966Responses of Gammarus Pulex (L.) To Modified EnvironmentCosta, H.H.
1967Responses of Gammarus pulex (L.) to Modified Environment II. Reactions to Abnormal Hydrogen Ion ConcentrationsCosta, H.H.
1967Responses of Gammarus Pulex (L.) To Modified Environment Iii. Reactions to Low Oxygen TensionsCosta, H.H.
1980Results of the Austrian Hydrobiological Mission, 1974, to the Seychelles-, Comores- and Mascarene-Archipelagos: Part III: The Ecology and the Distribution of Decapoda Caridea in the Indian Ocean Islands of Seychelles, Mauritius, Comores & RĂ©unionCosta, H.H.
1984Results of the Austrian-Indian Hydrobiological Mission 1976 to the Andaman-Islands: Part V: Taxonomy and Ecology of the Decapoda-CarideaCosta, H.H.
1999Species composition and abundance of aquatic oligochaetes in Ihalagama reservoir, a shallow perennial minor reservoir in Sri LankaWeerasundara, G.A.; Pathiratne, A.; Costa, H.H.
2000Species composition and abundance of littoral oligochaete fauna in Lunuwila reservoir, Sri LankaWeerasundara, A.; Pathiratne, A.; Costa, H.H.
1997Species composition, abundance and distribution of aquatic oligochaetes in Colombo (Beira ) lake, Sri LankaCosta, H.H.; Weerasundara, G.A.; Pathiratne, A.
1981Stocking Rate Estimations of Tilapia mossambica Fingerlings for some Inland Reservoirs of Sri LankaWijeyaratne, M.J.S.; Costa, H.H.
1998Studies of the metamorphic stages of the endemic frog Limnonectes greeni (Amphibia: Ranidae) and Mycrohyla zeylanica (Amphibia: Micrihylidae) from Sri LankaWeerawardena, S.R.; Costa, H.H.