383 CHARACTERISTICS OF MACRO-ALGAE BIOMASS FROM ROMANIAN BLACK SEA COAST Maria Nastac, Karina Gheorghiu, Iulia Mihu ASSOCIATION FOR THE PROTECTION OF HUMAN BEING AND ENVIRONMENT FOR A SUSTAINABLE DEVELOPMENT IN THE WORLD – ECOM, 10 Patriei Street, Constanta, Romania 900527, tel +4-0241672835 Email: marianastac@ecomct.ro Abstract At the Romanian Black Sea Coast envelopment of macro-algae mass is reported mainly in summer and is registered especially by the group green macro-algae; thus the largest deposits occur ashore after periods of storm especially, but especially after bottom movement, when a large area of shallow coastline is "shaved" of vegetal carpet. Most macrophytes algae from the Romanian littoral are seasonal species; typical for low temperatures are species of red algae: Bangia, Porphyra and Ectocarpus; species Dasya, Chondria are typical for the summer temperatures and others are frequently met especially in spring – fall; in addition to these, a number of species belonging to the group of green algae. Enteromorpha, Cladophora, are present in all associations succeeding in the year. Keywords: Black Sea Coast, macro-algal species, vegetal carpet, shallow litoral. 1. INTRODUCTION The Romanian seaside is located in the South East of Romania, including the Eastern limits of Constanta and Tulcea counties. The coastline has a length of 245 km and is bonded to the North side of flowing into the sea of the Musura River who makes common border with Ukraine. The border with Bulgaria is situated at 2 km from the resort of Vama Veche. The Romanian coastal zone is divided in two geographical and geomorphological units (Băcescu et al., 1971): - Northern unit (N, Fig.1) occupies 2/3 of the littoral length, it lays between Musura Bay, at the mouth of Chilia branch, and Cape Singol, including the shore of Danube Delta Biosphere Reserve. This area is characterized by sandy beaches, with low altitudes and reduced as amplitude sub-marine slopes. Figure 1. Romanian littoral of the Black Sea - Southern unit (S, Fig. 1), occupying 1 / 3 the length of the Romanian seaside, lays between Cape Singol and Vama Veche, and is characterized by narrow beaches, interrupted by limestone platforms 2 nd International Conference - Water resources and wetlands. 11-13 September, 2014 Tulcea (Romania); Available online at http://www.limnology.ro/water2014/proceedings.html Editors: Petre Gâştescu ; Włodzimierz Marszelewski ; Petre Bretcan; ISSN: 2285-7923; Pages: 383-387; Open access under CC BY-NC-ND license ;