The Hellenic Centre of Marine Research collected samples in the context of a Number of National and EU-funded projects. The datasets covers qualitative temporal data from Polychaete worms in the Aegean and Ionian Sea

This dataset was compiled in order to monitor long-term responses of the macrobenthos community to the environmental quality changes in the Northern Adriatic Sea

This data collected in the framework of a PhD thesis were collected between 1934 and 1936. Scientists from the Hellenic Centre of Marine Research computed the dataset afterwards (Vatova, A. 1949).