Study of plankton community structure and physico-chemical parameters of Kayalpattinam coastal waters of Tuticorin coast, Southeast coast of India
S Rameshkumar, R Rajaram, C Anand, J Stephen Sampath Kumar, V Senthil Kumar
The diversity and distribution of phytoplankton, zooplankton community structures were observed in relation to environmental parameters in the coastal waters of the Kayalpattinam coast, Southeast coast of India during February-March 2015. The physico-chemical parameters such as surface water temperature, TDS, Salinity, pH, Dissolved Oxygen, Conductivity were analyzed. The above values were 28.50±1.80⁰C, 30.93±1.46 (mg/l), 34.0±0.50ppt, 8.33±0.51, 7.09±0.68 (mg/ml), 11.63±0.71 (µs/cm), respectively. A total of 11 phytoplankton species and 17 zooplankton species were recorded and a total number of populations of phytoplankton and zooplankton species recorded were 87 and 122 respectively. Among the phytoplankton, the maximum percentages were covered by Coscinodiscus gigas (39.08%) followed by C.excentericus (28.74%), Oscillatoria (6.9%), Biddulphia mobilensis (4.6%) and Leptocylindrus danicus (4.6%). Similarly, the zooplankton population was dominated by species such as Copepod nauplii (29.51%), Oikopleuro dioica (28.69%), Oithona brevicornis (9.84%) Centrophages furgatus (5.74%). Both qualitative and quantitative abundance of phytoplankton and zooplankton communities in this coastal ecosystem are presented and discussed.