Tokaryev Y. Biophysical aspects of pelagial ecology

The pelagial biophysical characteristics, formed by hydrobionts in the Atlantic Ocean and the Mediterranean seas basin. Working out and approbation of the methods of express integral evaluation of the spatial structure and functional condition of pelagic communities at the macro-, meso- and fine scale levels according to characteristics of biophysical (bioluminescent and acoustic) fields as well as a notion of conceptual bases for pelagial ecology biophysical aspects. The scale of spatial heterogeneity of plankton, the amplitude characteristics of its biophysical fields and modification of the last under anthropogenic press was detailed for the first time, as well as investment of the pelagic populations separate groups into formation of biophysical fields in different regions of the World ocean was estimated. New for hydrobiology notion - biological field - has been formulated and its main signs have been determined. The tasks for a new direction in the sea biology - biophysical ecology - in the Worl d ocean ecosystem studies were pointed. The studies of the amplitude-frequential characteristics of biophysical fields and their spatial-temporal changeability is not only of a theoretical value, but has as well a great practical importance. Development of ideas about biophysical aspects of the pelagic communities ecology is important for providing adjacent scientific directions (oceanology, oceanography, physiology, zoology) with new methods of investigations. The worked out biophysical methods and apparatus complexes are perspective for creation of fishing-lighters, increasing effectiveness of fishery, for distanced reveal of the fishery objects accumulations, for separate aspects of navigation supply, they can be used also in the field hydrobiological studies of pelagial, in creation of new methods of ecological monitoring and construction of equipment for the World ocean biological fields studies. Hydrobionts, bioluminescence, sound scattering, vertical structure, spatial heterogeneity, temporal changeabi lity.