<span style="font-size:15.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-US; mso-bidi-language:HI;mso-bidi-font-weight:bold" lang="EN-US">Spatio-Temporal Distribution of Physico-Chemical Parameters and Chlorophyll-<i style="mso-bidi-font-style:normal">a</i> in Chilika Lagoon, East Coast of India</span>

Abstract

614-627<span style="font-size:9.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:hi"="" lang="EN-US">Present study contains the current status of Chilika Lagoon water quality during pre-monsoon, monsoon and post-monsoon seasons of the year 2012. Spatial and seasonal distributions of water quality parameters viz. WT, pH, Salinity, DO, TSM, Chl-a and inorganic nutrients (NO , NO , NH, PO, SiO) were examined in this study. Twenty locations were selected covering all the ecological sectors of the lagoon. Study reveals significant spatio-temporal variation in water quality parameters. The pH of the lagoon was found to be slightly alkaline. DO concentration was controlled by photosynthetic activities of autotrophs. Results of one-way ANOVA indicated spatio-temporal variation in the nutrients especially NH  and SiO (p  was found below the pollution limit for aquatic lives. Among the nutrients SiO, was the most influencing factor regulating phytoplankton production of the lagoon throughout the year.  However, NH was found as the second influencing factor for distribution of Chl-a