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EVOLUTION DES PRINCIPALES COMMUNAUTES BENTHIQUES DU SECTEUR
MARIN SITUE DEVANT LES EMBOUCHURES DU DANUBE PENDANT LA
PERIODE 1977-1980


Victoria Tiganus 
Institut Roumain de Recherches Marines Constanta


Abstract
Quantitative and qualitative changes in bethic communities
situated close to the Danube mouths are discussed. Comparative
with previous references there is a general simplification 
concerning structure and reduction of densities within 
communities such as Corbula sands transitory to muds with 
Spisula, the muds with Corbula-Syndesmia-Cardium association,
and the muds with Mytilus.the muds