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- Title
TOTAL ORGANIC CARBON (TOC ) OF THE SURFACE LAYER SEDIMENTS COVERING THE SEAFLOOR OF THE ROMANIAN BLACK SEA COAST.
- Authors
LAZĂR, Luminiţa; GOMOIU, Marian - Traian; BOICENCO, Laura; VASILIU, Dan
- Abstract
The paper presents the distribution of the Total Organic Carbon (TOC) in the surface layer sediments of the Black Sea Romanian shelf, since September 2009 to September 2010. The study is based on the analysis of samples from 21 stations. The results have led to the following conclusions: the TOC content in the surface sediments revealed values in the range "undetectable" up to 14.94% (mean 3.38%, median 3.28%, standard deviation 2.70%). The values generally highlighted a gradient increasing with distance from the shore and, at the same time, nearby the Danube's mouths, with the fine sediment fractions increase. Statistically, the TOC content of the stations under the direct influence of the river discharge was significantly higher in 2010 than 2009, due to the historical raised flow of the Danube. The spatial and temporal distribution of TOC content showed also high values in the Constanta area, in late summer, due to the increased river discharge in 2010, algal blooms and the anthropogenic influence of the wastewater treatment plants
- Subjects
BLACK Sea Coast (Romania); ROMANIA; COASTS; ALGAL blooms; HUMAN geography; ANTHROPOGEOMORPHOLOGY
- Publication
GeoEcoMarina, 2012, Vol 18, p121
- ISSN
1224-6808
- Publication type
Article