Open AccessPeculiarities of suspended matter distribution on the geochemical barrier water-atmosphere on transoceanic sections
Author(s) -
I. A. Nemirovskaya,
И. А. Немировская,
A. M. Titova,
А М Титова
Publication year - 2019
Publication title -
okeanologiâ
Language(s) - English
Resource type - Journals
ISSN - 0030-1574
DOI - 10.31857/s0030-1574594558-568
Subject(s) - oceanography , terrigenous sediment , phytoplankton , aerosol , environmental science , atmosphere (unit) , black sea , organic matter , surface water , chlorophyll a , dominance (genetics) , geology , chemistry , geography , sedimentary rock , ecology , biology , biochemistry , organic chemistry , environmental engineering , nutrient , gene , paleontology , meteorology
The article contains the results of the study of surface waters (31 cruise of the R/V “Akademik Nikolai Strakhov”, December 2015–January 2016) and the particle size distribution of aerosols and surface waters (42 cruise of the R/V “Akademik Boris Petrov”, January–April 2017). It was found that aerosol flows increased in arid regions of the Arabian Peninsula and the number of particles 0.3–0.5 µm decreased in the sequence (particles/l, 2017): Bab El-Mandeb Strait (135190)>Gulf of Aden (102854)>Red Sea (91612)>North, Baltic Sea (76468)>Indian Ocean (64113)>Malacca Strait (46491)>Mediterranean Sea (28397)>East Atlantic (14803). The biotic factor between the distribution of suspended matter and organic compounds prevails in the open waters of the Indian Ocean, in the northeastern part of the Atlantic Ocean, as well as in areas with increased water productivity (the Arabian Sea). Circumcontinental zonality led to the dominance of the terrigenous component in the suspension of coastal waters. The transition of the phytoplankton community from the winter (2016) to the spring (2017) led to a decrease in the suspension content, in 8 times on average. The absence of the correlation between the content of the suspension and organic compounds in some areas indicated different sources of their forming. Despite the high concentrations of hydrocarbons in individual samples in 2016 (up to 50–70 µg/l), their average content remained almost unchanged: 10.5 µg/l (2016), 8.7 µg/l (2017). The determination in the composition of hydrocarbons of weathered petroleum alkanes indicated the influence of petroleum pollutants.