RT Journal Article ID 5165aab9445d0a55 A1 Tokarev, Yu. N. A1 Sokolov, B. G. T1 Influence of Physical and Biological Factors on the Formation of the Small-Scale Structure of Bioluminescent and Acoustic Fields in the Black and Mediterranean Seas JF Hydrobiological Journal JO HYD YR 2002 FD 2002-06-01 VO 38 IS 3 OP 12 AB Physical and biological mechanisms giving rise to the marine planktonic aggregations and their inner structure are analyzed. In the daytime, the spatial structure of such "spots" is formed mainly under the action of physical factors. At dark hours, the role of biological (reproductive, migratory) factors in forming the heterogeneity of constituents aggregated within the "spots" increases. Biophysical methods using bioluminescence and sound volume backscattering strength are highly effective for characterizing the small-scale (tens of meter volume) structure of planktonic communities. PB Begell House LK https://www.dl.begellhouse.com/journals/38cb2223012b73f2,0d61b30f78d1834b,5165aab9445d0a55.html