T.V. Ramana and ro.p..m Reddy
Abstract
A study on the distribution of silicate, phosphate, nitrite and nitrate in the nearshore water off Dakshina Kannada coast has been conducted to understand the monthly, seasonal yearly and spatial variations of these nutrients along this coast. Silicate-silicon content registered a maximum in August/September and showed an inverse relation with salinity. Phosphate-phosphorus values revealed a unimodal type of fluctuation during the yearVery high values of nitrite-nitrogen during August/September and lowest values in January for both surface and sub-surface waters were recorded. Nitrate-nitrogen content showed peak values during May/August and low values during December.