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Biological structure and productivity of epipelagic sound-diffusing layer (SDL) in connection with circulation and dynamics of water of the East-Equatorial AtlanticG. V. Zuev, S. V. Martynenko, V. N. Nikollsky Institute of Biology of the Southern Seas, 2 Nahimov Avenue, Sevastopol 99011, Ukraine Summary Biological structure of SDL in different regions of the eastern tropical Atlantics was considered. Two types of SDL are distinguished: the first type mainly consisting of tunicates and crustaceans is formed near water rise; the second type, consisting mainly of mesopelagic fishes, is formed in the regions of convergences. Total biomass of organisms in SDL varies within 5.8-52.4 kg per hour of trawling. The dependence between the degree of development of epipelagic SDL and distribution of Sthenoteuthis pteropus is found. Ekologiya morya. - 1989. - Iss.32. - pp.31-40. | Return to Presentation Articles | |