Lipids in ocean particulate matter and bottom sediments

DOI

Lipid contents both in particulate matter and bottom sediments decreases with passage from the shelf toward the open ocean. Lipid concentration in particulate matter collected by a separator (Ls) decreases by a factor of 7 (from 7.05 to 0.95 % of dry matter), while in particulate matter collected on filters (Lf) it decreases by a factor of 13 (from 78 to 6 µg/l) in the vicinity of the Limpopo River and by a factor of 6 (from 74 to 13 µg/l) in the vicinity of the Zambezi River. Concentration of Lf also decreased with depth. In the upper sediment layers lipid concentration was 0.0028-0.039% of dry matter; all mud samples were richer in lipids, than sand samples. During sedimentogenesis there is an increase in proportion of lipids relative to other classes of organic matter, proportion of low-polarity compounds increases among the lipids, and proportion of hydrocarbons rises among these compounds. Sediments inherit composition of particulate matter to the greatest degree in the vicinity of river mouths.

Supplement to: Romankevich, Evgeny A; Nemirovskaya, Inna A (1985): Lipids in suspended matter and bottom sediments and their transformation during sedimentogenesis. Oceanology, 25(3), 341-347

Identifier
DOI https://doi.org/10.1594/PANGAEA.757021
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.757021
Provenance
Creator Romankevich, Evgeny A; Nemirovskaya, Inna A
Publisher PANGAEA
Publication Year 1985
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (16.400W, -27.200S, 111.100E, 35.100N); Mozambique Channel; Indian Ocean; Mediterranean Sea; Red Sea; Somali Basin; Bay of Bengal; Strait of Malacca; South China Sea