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CONTRIBUTIONS A L'ETUDE SYSTEMATIQUE DU 
PHYTOPLANKTON MEDITERRANEEN DEVANT COTES 
LIBYENNES 


V.H. Skolka, N. Bodeanu, Anca Roban
Institut Roumain de Recherches Marines Constanta 


Abstract
The paper presents the phytoplankton species living in
Mediterranean Libyan waters on the basis of 2050 Nansen
bottle samples collected during the four expeditions
carried out between 1975 and 1976. The authors recorded
597 species: 255 Pyrrophyta, 221 Bacillariophyta (77
planktonic and 147 benthic), 60 Coccolithophoridae and 
61 other algal groups. Seasonal variations of the phyto-
plankton are also presented. Some comparisons with other
geographical zones are made by using the Soerensen index
of similarity.