Some aspects of productivity in relation to fisheries of Indian neritic waters

It is generally accepted that tropical seas are less productive than the temperate waters to the north and south of the Equator. Large concentrations of nutrients are characteristic of Polar waters and areas influenced by these waters are rich in anima~ and plant life. In rem• perate waters ule nutrients accumulated during the \",inter months support the burst of phytoplanktonic growth which reaches its peak with increasing sunligh