Length-Weight relationship and condition factor of tilapia species grown in marine and fresh water ponds
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Agriculture and Biology Journal of North America
Abstract
The aim of this study was to describe the differences in Length-Weight relationship and condition
factor of Tilapia zillii and Oreochromis urolepis urolepis reared in full strength sea water (FSSW)
and fresh water (FW) ponds. The environmental condition in FSSW and FW ponds were also
analyzed to determine their impacts on Length-Weight relationship and condition factor on both
species. The regression coefficient "b" exhibit negative allometric growth in FW and positive
allometric growth in FSSW for both species. The value of exponent "b" and condition factor (K) for
T. zillii in FW and FSSW (in the bracket) were found to be 2.94 (3.3) and 2.07 (0.74) respectively.
On the other hand the value of exponent "b" and condition factor (K) for O. urolepis urolepis in
FW and FSSW (in the bracket) were found to be 2.81 (3.46) and 0.86 (0.53) respectively. Though
both species performed well in FW, the study also revelead that farming of these tilapia species in
FSSW can be feasible if water quality parameters are properly monitored.
Description
Journal article
Keywords
L-W relationship, Tilapia, Sea water, Fresh water, Pangani, Tanzania