Hydrochemical parameters of marine basins as indicators of its biological productivity
2017
Arzhanova, N.V.
On the example of some regions of the World Ocean and the seas of Russia it is shown that the hydrochemical characteristics of the medium can be both indirect and direct indicators of areas of increased biological productivity. Direct indicators of the level of biological productivity arechemicalcompounds thatare products of the metabolism of hydrobionts, such as, for example, ammonium and urea. Their accumulation in water indicates the presence in this region of clusters of hydrobionts, including commercial ones. The study of the hydrochemical structure of the water column makes it possible to discover the regions most favorable for the formation of fishing clusters-frontal zones, vortex formations of a different sign, zones of intensive water rise. An important indirect indicator of increased biological productivity is the high content of biogenic elements in the euphotic layer, on which the amount of organic matter synthesized by phytoplankton — the basis for the formation of the food base for hydrobionts of all subsequent links in the food chain — depends.
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