Seawater nutrient supply

It can be seen that the shape of the ocean basins and the distribution of continental masses have an important effect on currents and the location of high productivity zones. The degree of flooding of continental margins, which is controlled by the relative volumes of ocean basins and seawater, is also important in terms of the area of productive coastal waters. Nutrient supply from land, via rivers, can contribute to the productivity of shelf seas. 

The horizontal and vertical distributions of trace metals in seawater are determined by their relative rates of supply and removal. In this section, we inspect a variety of concentration profiles and assess the processes responsible for determining their shapes. In the case of the vertical profiles, the trace metals can be classified into one of the following types (1) nutrient, (2) conservative, and (3) scavenged, with some elements exhibiting a mixture of these types. 

Whitehouse et al [1985] describe the conditions peculiar to the development of a macrofouling community in power plants. Included are the continuous flow of seawater supplying oxygen and food and reduced salt deposition, the lack of competition from algae in the culverts and a reduction in the presence of predators. The waste products from marine life activity together with decomposition products from dead material, is a potential source of nutrients for microfouling. 

Three reasons are proposed to explain why high productivity is maintained in a coral reef ecosystem the nutrients circulate at a high rate the seawater motion accelerates the assimilation of nutrients the geothermic-originated upwelling currents supply extrinsic nutrient. 

Source water quality has a key influence on the suitability of using seawater desalination for industrial water supply. The water quality parameters that have a significant impact on the desalination system design, operations, and cost of water production are the concentration of TDS, chlorides, turbidity, silt density index (SDl), organic content, nutrients, algae, bacteria, temperature, boron, sUica, barium, calcium, and magnesium. 

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