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    Environmental conditions of some paddy cum prawn culture fields of Cochin backwaters, southwest coast of India

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    Indian_J_Mar_Sci_17_24.pdf (1.266Mb)
    Date
    1988
    Author
    Nair, K.K.C.
    Sankaranarayanan, V.N.
    Gopalakrishnan, T.C.
    Balasubramanian, T.
    Devi, C.B.L.
    Aravindakshan, P.N.
    Kutty, M.K.
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    Abstract
    Temperature, salinity, pH, dissolved oxygen, inorganic phosphate, ammonia, nitrate and nitrite of seasonal and perennial prawn culture fields from 3 areas of Cochin backwaters are studied. Area 1 is a region least affected ecologically and the salinity values 10 x 10-3 occur here during December to June. Area 2 which is near to the location of effluent discharge from a fertiliser factory shows high concentration of nutrients with low prawn production. Area 3 is most favourably situated to resist ecological distortions because of its proximity to the sea. The results indicate that the fields in areas 1 and 3 have environmental conditions highly suited for prawn culture whereas in area 2 the salinity conditions are not very conducive for prawn growth
    URI
    http://drs.nio.org/drs/handle/2264/7015
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