SEASONAL FLUCTUATION IN FISH DIVERSITY IN CORRELATION WITH TRACE ELEMENT DISTRIBUTION
SOBHA MERINA GEORGE *
Department of Zoology, St. Berchman’s College, Changanacherry, Kottayam, Kerala, India.
ARUNIMA SEBASTIAN
Department of Zoology, Deva Matha College, Kuravilangad, Kottayam, Kerala, India.
JOE PRASAD MATHEW
Department of Zoology, St. Berchman’s College, Changanacherry, Kottayam, Kerala, India.
*Author to whom correspondence should be addressed.
Abstract
Fish diversity can alter according to different seasons’ pre-monsoon, monsoon, and post-monsoon. Different seasons showed varied trace element concentrations which correlated with fish diversity. We studied the seasonal variations of Cr, Cu, Fe, Mg, Mn, Ca and Zn in Kuttanad aquatic system. Trace element analysis was conducted by AAS for three years. Trace elements showed a significant correlation with fish diversity in different seasons.
Keywords: AAS, fish diversity, kuttanad, seasonal variation, trace elements