Lipids and polycyclic aromatic hydrocarbons in bottom sediments from the Atlantic sector of the Southern Ocean

Distribution and composition of lipids and contents of alkanes and polycyclic aromatic hydrocarbons(PAHs) in bottom sediments of the Scotia and Weddell seas are discussed. Comparatively low concentrations of organic carbon (average 0.35%) and lipids (average 0.024%) result from rapid decomposition o...

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Bibliographic Details
Main Authors: Nemirovskaya, Inna A, Romankevich, Evgeny A
Format: Dataset
Language:English
Published: PANGAEA 1992
Subjects:
Archive of Ocean Data
ARCOD
DM43
DM43-4084-1
DM43-4084-2
DM43-4085-2
DM43-4086
DM43-4087
DM43-4091
DM43-4094
DM43-4100
DM43-4103
DM43-4105TR
Dmitry Mendeleev
Grab
MULT
Multiple investigations
SIGSBY
Sigsby trawl
Southern Ocean
Antarctic
King George Island
Weddell
Antarc*
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.759296
https://doi.org/10.1594/PANGAEA.759296
Description
Summary:Distribution and composition of lipids and contents of alkanes and polycyclic aromatic hydrocarbons(PAHs) in bottom sediments of the Scotia and Weddell seas are discussed. Comparatively low concentrations of organic carbon (average 0.35%) and lipids (average 0.024%) result from rapid decomposition of organic matter in upper layers of the water column. Composition of alkanes indicates that lipids are of autochthonous origin, and stable concentrations of PAHs (average 25.8 ppb, sigma 15.3 ppb) indicate that they represent the background level for bottom sediments. Higher concentrations of PAHs in sediments near the King George Island (252.1 ppb) and different distributions of individual polyarenes are produced there by the heating systems of the Polish Antarctic Station.

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