Основные черты распределения макропланктона звукорассеивающих слоев в Средиземном море - (:unkn) unknown (Киев : Наукова думка, 1978)
Main Features of Macroplankton Distribution in the Sound-Scattering Layers of the Mediterranean Sea
The article deals with distribution of populations of mass microplankton species and groups of organisms possessing similar properties of sound scattering: animals with a gelatinous body, animals with chitin integuments, fishes with gas bladders and without them. The material was collected by means of the Isaaks-Kidd sweep in the Black, Aegean, Ionic, Tyrrhenian, Sardinian and Balearic seas in the day light and at night at depths of 500 m in of autumns of 1974 and 1976. Composition and quantitative ratio of species in different layers varied depending on their vertical migration. The number of species of fish, higher Crustacea and their amount in surface horizons increased at night. Species inhabiting the surface layer, interzonal species and those at a depth of above 250 m are distinguished.