p. 77 - 93

QUELQUES ELEMENTS CONCERNANT LA PRODUCTIVITE BIOLOGIQUE
DE LA MER NOIRE EN FACE DU DELTA DU DANUBE


Adriana Petran, Marian-Traian Gomoiu, Nicolae Bodeanu 
et Victoria Tiganus
Institut Roumain de Recherches Marines Constanta

Abstract
On the basis of the observations and measurements carried out in 
1976-1977, some elements characterizing the structure of the marine
ecosystem in front of the Danube Delta are presented in the paper.
Although the ecological factors from the predeltaic area record
qualitative and mostly larger quantitative fluctuations, the density
 and biomass values of the phytoplankton, zooplankton and benthos
prove that the biological productivity of the area is high.