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Showing 10 out of a total of 10 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
)
The hydrobiology and fish production potential of major freshwater reservoirs in Hambantota district Sri Lanka
Daniel, D.J.
;
Costa, H.H.
;
Wijayaratne, M.J.S.
(
MF
,
1988
)
Food and feeding of two species of grey mullets Valamugil buchanani (Bleeker) and Liza vaigiensis Quoy and Gaimard inhabiting brackishwater environments in Sri Lanka.
Wijeyaratne, M.J.S.
;
Costa, H.H.
(
1990
)
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Author
Costa, H.H. (10)
Daniel, D.J. (1)
Keembiahetti, C.N. (1)
Pathirana, A. (1)
Shafiei, T.M. (1)
Weerasundara, G.A. (1)
Wijayaratne, M.J.S. (1)
wijeratne, M.J.S. (1)
Wijeyaratne, M.J.S. (1)
Subject
Oligochaeta (2)
Oreochromis mossambicus (2)
pollution (2)
acolosomitidae (1)
Beira Lake (1)
Benthic invertebrates (1)
brushparks (1)
Caridina pristis (1)
Ceylon (1)
feed (1)
... View More
Date Issued
1990 - 1997 (5)
1980 - 1989 (3)
1970 - 1979 (1)
1967 - 1969 (1)
Has File(s)
Yes (10)