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THE DISTRIBUTION OF THE BIVALVE MYA ARENARIA L.ON THE ROMANIAN
SHORE OF THE BLACK SEA 


Adriana Petran et Marian Gomoiu
Institut Roumain de Recherches Marines Constanta


Abstract
On the basis of 590 samples collected during 1970 and 1971 from the
superior infralittoral strip-to the depth of 10 m, in a network of 
105 stations, the qualitative and quantitative spreading of the 
bivalve Mya arenaria L.on the Romanian shore is established, the 
species having recently penetrated into the Black Sea. The registered
densities and biomasses show that during the last 4-5 years, Mya 
settled perfectly off the Romanian shore in fine sediment zones (sand 
muddy sand and sandy mud), in some places reaching values of over
8,000 specimens/m2 and 16.000 g/m2. It has been noticed, on the basis
of obtained data, that the setting of Mya off the Romanian shore is 
still a developing process.