Concentrations of particulate organic carbon in the Kara Sea and in the Obskaya Guba (Ob River estuary) in September 1993

Contents and distribution of particulate lipids were studied by thin-layer chromatography technique with flame ionization detection (Iatroscan TH-10) along the transect from the Ob River towards the Kara Sea. Lipid contents range from 18.4 to 266 µg/l with, average 84.97 µg/l, which comprises from 4...

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Bibliographic Details
Main Authors: Alexandrova, Olga A, Shevchenko, Vladimir P
Format: Dataset
Language:English
Published: PANGAEA 1997
Subjects:
Archive of Ocean Data
ARCOD
Calculated
Carbon
organic
particulate
total
Carbon analyser AN-7529
7560
DEPTH
water
DM49
DM49-4395TB3
DM49-4396TB3
DM49-4397TB2
DM49-4414TB1
DM49-4416TB1
DM49-4417TB1
Dmitry Mendeleev
Elevation of event
Event label
Filtration
Kara Sea
Latitude of event
Longitude of event
Obskaya Guba
SPASIBAIII
Suspended particulate matter
TRANS150
Transparent bottle 150L
Arctic
ob river
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.760163
https://doi.org/10.1594/PANGAEA.760163
Description
Summary:Contents and distribution of particulate lipids were studied by thin-layer chromatography technique with flame ionization detection (Iatroscan TH-10) along the transect from the Ob River towards the Kara Sea. Lipid contents range from 18.4 to 266 µg/l with, average 84.97 µg/l, which comprises from 4.06 to 58.32 % of total particulate organic matter. Principal constituents of particulate lipids are hydrocarbons (32.14 % of total lipids on the average), polar compounds (29.85 %), wax and sterol esters (13.04 %), and mono- and diglycerides (12.52 %). Secondary components are presented by fatty acid esters (5.14 %), free fatty acids (4.56 %), triglycerides (2.32 %), and sterols (1.04 %). Specific composition of particulate lipids along the Ob River - Kara Sea transect is formed under strong impact of river run-off. Particulate lipid composition reflects differences between processes of organic matter transformation in estuarine and marine parts of the transect, as well as peculiarities of species composition of Arctic living organisms.

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