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Distribution of surface active substances in the northern Adriatic Sea

Gašparović, Blaženka; Ćosović, Božena (2001) Distribution of surface active substances in the northern Adriatic Sea. Marine Chemistry, 75 (4). pp. 301-313. ISSN 0304-4203

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Abstract

Spatial distribution and seasonal variability of surfactant activity (SA) of seawater were studied in the Northern Adriatic Sea and compared to the temperature and salinity patterns in the two year period from February 1998 to January 2000, based on monthly surveys. Surface active substances were determined with alternating current voltammetry (in-phase mode) using o-nitrophenol as an electrochemical probe. A general characteristic of the SA seasonal variability for the Northern Adriatic is the sinusoidal change of SA within the period of one year; similar behaviour was observed for the seasonal variations of temperature. Maximum SA values appeared during the summer period while minimum SA values were measured in winter, during the period of well-mixed water layers and lower phytoplankton production. In May and October, the highest SA values were obtained in the upper seawater layer, which was ascribed to the influence of high inflow of nutrient rich Po River freshwater. Riverine inputs indirectly favour autochthonous production processes, which result in increased concentration of organic matter, particularly surface active substances.

Item Type: Article
Uncontrolled Keywords: surface active substances; Adriatic Sea
Subjects: NATURAL SCIENCES > Chemistry
NATURAL SCIENCES > Interdisciplinary Natural Sciences > Marine Science
Divisions: Division for Marine and Enviromental Research
Projects:
Project titleProject leaderProject codeProject type
Priroda i reaktivnost organskih tvari u moru i kopnenim vodaBožena Ćosović00981503MZOS
Depositing User: Blaženka Gašparović
Date Deposited: 14 Jun 2016 10:09
Last Modified: 14 Jun 2016 10:09
URI: http://fulir.irb.hr/id/eprint/2883

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