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Distribution of selenium in the plume of the Gediz River, Izmir Bay, Aegean Sea

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Selenium (Se) variations in the water column, suspended particulate matter, and sediment through the salinity gradient, together with water-quality parameters, were investigated over four different river conditions: lowest–highest runoff and high–low production period between November 2004 and August 2005 in the plume of the Gediz River, Aegean Sea, Turkey. The drainage basin of the Gediz delta is predominantly agricultural and industrial in character. Dissolved Se exceeded the water-quality standard of 5 μg L–1 during high flow and varied from 9.4 μg L–1 to 0.02 μg L–1 through the salinity gradient during the study period. Particulate Se ranged from 5.2 μg L–1 to 0.02 μg L–1. Sediment in the river mouth was highly affected by Se contamination and reached a level greater than four times (7.6 μg L–1 dry wt) the background level. The results indicated that Se supplied by the river was removed rapidly from the water column before the salinity reached an average value of about 20 and accumulated within the delta.
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Keywords: AEGEAN SEA; GEDIZ RIVER; PARTICULATES; RIVER PLUME; SEDIMENT; SELENIUM

Document Type: Research Article

Publication date: March 1, 2017

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  • The Journal of Marine Research, one of the oldest journals in American marine science, publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. Biological studies involving coupling between ecological and physical processes are preferred over those that report systematics. The editors strive always to serve authors and readers in the academic oceanographic community by publishing papers vital to the marine research in the long and rich tradition of the Sears Foundation for Marine Research. We welcome you to the Journal of Marine Research.
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