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Belyaeva, Alexandra N; Bobyleva, Nadezhda V (1981): Alkanes in plankton and bottom sediments of the Baltic Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.755437, Supplement to: Belyaeva, AN; Bobyleva, NV (1981): Alkanes of plankton and bottom sediments from the Baltic Sea. Oceanology, 21(6), 712-715

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Abstract:
Composition of alkanes present in total plankton was determined at two stations in the Gulf of Riga and in six samples of recent bottom sediments collected in a cross-section extending from the Daugava River estuary to the Gotland Basin. C15 to C17 n-alkanes were dominant in the plankton, the highest content being that of n-C16 alkanes. Low values of the index of predominance of odd hydrocarbons over even ones (0.95 to 1.16) and presence of phytane and of a chromatogram "hump" caused by compounds that cannot be separated by gas-liquid chromatography indicate partial contamination of the plankton with petroleum hydrocarbons. In the low-temperature part of the spectrum, the main n-alkane peak in the upper layer of bottom sediments is due to n-C17 compounds, whereas in the high-temperature part the main peak is due to a series of odd (C23-C31) n-alkanes. It was shown that alkanes present in these sediments have mixed biogenic origin (marine + terrigenous), with different ratios of autochtonous and allochtonous components in different parts of the investigated section, and that they are practically devoid of petroleum hydrocarbons.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 57.177304 * Median Longitude: 23.138274 * South-bound Latitude: 57.078000 * West-bound Longitude: 20.034000 * North-bound Latitude: 57.408000 * East-bound Longitude: 24.080000
Event(s):
AK26A-2575 * Latitude: 57.078000 * Longitude: 23.996000 * Elevation: -22.0 m * Location: Gulf of Riga * Campaign: AKU26A * Basis: Akademik Kurchatov * Method/Device: Multiple investigations (MULT)
AK26A-2587 * Latitude: 57.167000 * Longitude: 24.080000 * Location: Gulf of Riga * Campaign: AKU26A * Basis: Akademik Kurchatov * Method/Device: Multiple investigations (MULT)
AK26A-2589 * Latitude: 57.177000 * Longitude: 23.851000 * Elevation: -39.0 m * Location: Gulf of Riga * Campaign: AKU26A * Basis: Akademik Kurchatov * Method/Device: Multiple investigations (MULT)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Belyaeva, AN; Bobyleva, NV (1981): (Table 1a) Composition of alkanes in plankton from the Gulf of Riga collected in summer 1978. https://doi.org/10.1594/PANGAEA.755433
  2. Belyaeva, AN; Bobyleva, NV (1981): (Table 1b) Composition of alkanes in bottom sediments from the Baltic Sea. https://doi.org/10.1594/PANGAEA.755434
  3. Belyaeva, AN; Bobyleva, NV (1981): (Table 2a) Distribution of alkanes in plankton from the Gulf of Riga collected in sommer 1978. https://doi.org/10.1594/PANGAEA.755435
  4. Belyaeva, AN; Bobyleva, NV (1981): (Table 2b) Distribution of alkanes in bottom sediments from the Baltic Sea. https://doi.org/10.1594/PANGAEA.755436