Sur la biologie des copepodes pelagiques des eaux roumaines de la Mer Noire

Abstract

Based on the high amount of zooplankton collected over several years in the Black Sea water facing the Romanian littoral, at low depths, the author analyzed the results of research on certain biolo­gical aspects of the major Copepodae living there, namely: Acartia clausi. Giesbr., Pseudocalanus elongatus, Boeck, Centropages ponticus. caravaj. and Oithona nana_r Giesbr. The paper also analyses the reproduction rate and intensity, age structure of the population, sex ratio and Copepodae distribution in cross section, in keeping with the specific envi­ronment conditions, with season (spring and summer), and with Copepodae consumption by various other organisms.