Species Diversity and Community Assemblage of Planktonic Rotifers in Pipnakha Pond, Gujranwala, Pakistan
Species Diversity and Community Assemblage of Planktonic Rotifers in Pipnakha Pond, Gujranwala, Pakistan
MUHAMMAD EJAZ*1, MUHAMMAD JAMIL YOUSAF5, ASMA MAQBOOL3, ALTAF HUSSAIN4 & ABDUL QAYYUM KHAN SULEHRIA2
ABSTRACT
Species diversity and community assemblage of planktonic rotifers were determined with respect to seasonal variations in a pond of Pipnakha village, Gujranwala. Sampling was executed on monthly basis at three sites of the pond from October, 2011 to September, 2012. Altogether, 74 rotifers belonging to 24 genera and 13 families were identified. Highest (128.7±40 ind/ml) ppopulation density of rotifers was observed in June while lowest (64.9±22 ind/ml) population density was seen in January. Brachionus havanaensis was found to the the dominant species with the highest mean population density (40±11.9 ind/ml) while Philodina roseola was a least dominant with lowest population density (3±1.2 ind/ml). ANOVA displayed a significant difference in population density of rotifers among months. Rotifers exhibited positive correlations with temperature, total hardness pH, TDS, electrical conductivity and turbidity however, DO and transparency indicated negative correlations. Shannon-Weaver index stretched from 3.036 to 3.802 and exhibited great diversity. Values of species evenness extended from 0.932 to 0.970 that showed even distribution.
Key Words: Species diversity, rotifers, seasonal fluctuations, abiotic parameters
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December 2017
Vol.63, Iss. 2, Pages 125-234
