Authors:
*Agba,S., Obande, R.A. ,Solomon, S.G. and Gbaaondo,T., Nigeria
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Abstract:
Data on growth parameters of Atya gabonensis and Macrobrachium macrobrachion were
collected over a period of 6 months from August 2021 to January 2022. A total of one hundred
and seventy (170) specimens of M. macrobrachion and two hundred and forty (240) specimens
of A.gabonensis were hand-picked under rocks and crevices under the water by the help of
fishermen who dived in, while M. macrobrachium were trapped using unbaited local non-return
basket trap made of bamboo and a non-return set trap. The collected samples were transported
live to the fisheries laboratory, University of Agriculture, Makurdi in ice box containing water
for further analysis using independent sample t-test to determine the mean values.The result of
the length weight relationship revealed that apart from fig 4. Fig. 1, 2, 3 and 5 showed a strong
correlation between the length and weight of the two (2) species (R2=0.8615), (R² = 0.8812),
(R2=0.8761), (R2=0.5523), (R2=0.7482) and the b values were less than three (3) which shows a
negative allometric growth.Apart from gut length ,gut weight and carapace length in table 2 the
result for seasonal variation in some morphometric parameters in Atya gabonensis and
Macrobrachun macrobrachion differed significantly in both seasons (wet and dry). The result for
the morphormetric parameters for table 3 and 4 all showed significant differences. It was
concluded that this species exhibit an allometric growth pattern. I therefor recommend more
work be done in other areas of the biology of these prawns inorder to provide accurate
informations for their domestication. |
