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EFFECT OF SALINITY ON SURVIVAL AND LARVAL DEVELOPMENT OF THE AFRICAN RIVER PRAWN, MACROBRACHIUM VOLLENHOVENII (HERKLOT'S 1857) OF THE CROSS RIVER ESTUARY


Paul Jimmy Udo

Abstract

Laboratory investigations was conducted to gain a better insight into the effect of changing salinity regime on the development and survival of Macrobrachium vollenhoveli larvae. At water temperature of 28 ± 2oC, larvae reared in the salinity range of 0 to 10 ppt showed low survival (<48%), whereas those reared at 12 – 28ppt salinity range revealed over 60% survival. Development of larvae to post larvae occurred after 43 to 63 days. These results provide a basis for capture and stocking of larvae and juveniles of the species in the pond.


KEY WORDS: Cross river, estuary, M. vollenhovenii, survival salinity, Nigeria


Global Journal of Agricultural Sciences Vol.2(2) 2003: 62-63

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eISSN: 2992-4499
print ISSN: 1596-2903