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Showing 10 out of a total of 14 results for collection: Research Articles Collection.
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The susceptibility and resistence of fry and fingerlings of Oreochromis mossambicus Peters to some pesticides commonly used in Sri Lanka (RP0060)
Shafiei, T.M.
;
Costa, H.H.
(
Hamburg: Verlag Paul Parey
,
1990
)
Effects of some common insecticides and other environmental factors on the Heart Beat of Caridina pristis (RP0062)
Costa, H.H.
(
W.Junk
,
1970
)
An experimental study on the culture of fry of Oreochromis mossambicus (Peters) in a peaty swamp in Sri Lanka using cowdung and poultry manure as fertilizer RP0059)
Costa, H.H.
;
Keembiahetti, C.N.
(
Elsevier
,
1987
)
A systematic study of freshwater oligochaeta from Ceylon (RP0063)
Costa, H.H.
(
1967
)
The effects of some heavy metal pollutants on the heat beat of Gammarus Pulex (L) (RP0069)
Costa, H.H.
(
1980
)
The effects of leaving central bare areas in traditional circular brushparks on the yield of fish in the brushpark fishery in Negombo estuary, Sri Lanka (RP0072)
Costa, H.H.
;
wijeratne, M.J.S.
(
Japan: Ecoset
,
1995
)
Species composition, abundance and distribution of aquatic Oligochaetes in Colombo (Beira) lake, Sri Lanka(RP0070)
Costa, H.H.
;
Weerasundara, G.A.
;
Pathirana, A.
(
Colombo:SLAFAR
,
1997
)
Land-based sources on marine pollution in Sri Lanka (RP0071)
Costa, H.H.
(
The Pensylvania Academy of Science
,
1994
)
Hydrobiology and fish production potential of major freshwater reservoirs in Hambantota district
Daniel, D.J.
;
Costa, H.H.
;
Wijayaratne, M.J.S.
(
MF
,
1998
)
Limnology and fish production potential of major freshwater reservoirs in Anuradhapura District
Amarasinghe, U.S.
;
Costa, H.H.
;
Wijayaratne, M.J.S.
(
MF
,
1983
)
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Author
Costa, H.H. (14)
Wijayaratne, M.J.S. (3)
Daniel, D.J. (2)
Amarasinghe, U.S. (1)
Indrasena A., W.M. (1)
Keembiahetti, C.N. (1)
Pathirana, A. (1)
Shafiei, T.M. (1)
Weerakkody, J.S. (1)
Weerasundara, G.A. (1)
... View More
Subject
fish production (2)
Hambantota (2)
hydrobiology (2)
morphometry (2)
Oligochaeta (2)
Oreochromis mossambicus (2)
pollution (2)
acolosomitidae (1)
Bathalagoda tank (1)
Beira Lake (1)
... View More
Date Issued
1990 - 1998 (6)
1980 - 1989 (6)
1970 - 1979 (1)
1967 - 1969 (1)
Has File(s)
Yes (10)
No (4)