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Kurbjeweit, Frank; Schmiedl, Gerhard; Schiebel, Ralf; Hemleben, Christoph; Pfannkuche, Olaf; Wallmann, Klaus; Schäfer, Priska (2000): Living benthic foraminiferal assemblages in surface samples of the Arabian Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.735187, Supplement to: Kurbjeweit, F et al. (2000): Distribution, biomass and diversity of benthic foraminifera in relation to sediment geochemistry in the Arabian Sea. Deep Sea Research Part II: Topical Studies in Oceanography, 47(14), 2913-2955, https://doi.org/10.1016/S0967-0645(00)00053-9

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Abstract:
The distribution, biomass, and diversity of living (Rose Bengal stained) deep-sea benthic foraminifera (>30 µm) were investigated with multicorer samples from seven stations in the Arabian Sea during the intermonsoonal periods in March and in September/October, 1995. Water depths of the stations ranged between 1916 and 4425 m. The distribution of benthic foraminifera was compared with dissolved oxygen, % organic carbon, % calcium carbonate, ammonium, % silica, chloroplastic pigment equivalents, sand content, pore water content of the sediment, and organic carbon flux to explain the foraminiferal patterns and depositional environments.
A total of six species-communities comprising 178 living species were identified by principal component analysis. The seasonal comparison shows that at the western stations foraminiferal abundance and biomass were higher during the Spring Intermonsoon than during the Fall Intermonsoon. The regional comparison indicates a distinct gradient in abundance, biomass, and diversity from west to east, and for biomass from north to south. Highest values are recorded in the western part of the Arabian Sea, where the influence of coastal and offshore upwelling are responsible for high carbon fluxes. Estimated total biomass of living benthic foraminifera integrated for the upper 5 cm of the sediment ranged between 11 mg Corg m**-2 at the southern station and 420 mg Corg m**-2 at the western station. Foraminifera in the size range from 30 to 125 ?m, the so-called microforaminifera, contributed between 20 and 65% to the abundance, but only 3% to 28% to the biomass of the fauna. Highest values were found in the central and southern Arabian Sea, indicating their importance in oligotrophic deep-sea areas.
The overall abundance of benthic foraminifera is positively correlated with oxygen content and pore volume, and partly with carbon content and chloroplastic pigment equivalents of the sediment. The distributional patterns of the communities seem to be controlled by sand fraction, dissolved oxygen, calcium carbonate and organic carbon content of the sediment, but the critical variables are of different significance for each community.
Coverage:
Median Latitude: 15.403226 * Median Longitude: 63.994322 * South-bound Latitude: 9.994660 * West-bound Longitude: 59.685000 * North-bound Latitude: 19.999660 * East-bound Longitude: 68.567000
Date/Time Start: 1995-03-11T00:00:00 * Date/Time End: 1995-10-19T12:55:00
Event(s):
M31/3-110.4_MC1 (110, M31/3_MC376, WAST) * Latitude: 16.209700 * Longitude: 60.266660 * Date/Time: 1995-03-15T04:00:00 * Elevation: -4031.0 m * Location: Arabian Sea * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Device: MultiCorer (MUC)
M31/3_MC-08 (M31/3_111#1,GeoB3007-3,WAST-T) * Latitude: 16.168000 * Longitude: 59.771000 * Date/Time: 1995-03-11T00:00:00 * Elevation: -1916.0 m * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Device: MultiCorer (MUC)
M31/3_MC-11 (M31/3_111#2,GeoB3008-5,WAST-Flank) * Latitude: 16.091000 * Longitude: 59.685000 * Date/Time: 1995-03-12T00:00:00 * Elevation: -2243.0 m * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Device: MultiCorer (MUC)
Size:
33 datasets

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Datasets listed in this publication series

  1. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): (Table 8) Factor score matrix ofthe living benthic foraminiferal assemblages. https://doi.org/10.1594/PANGAEA.735185
  2. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): (Table 9) Factor loading matrix ofthe living benthic foraminiferal assemblages. https://doi.org/10.1594/PANGAEA.735186
  3. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living benthic foraminifera of station M33/1_MC-13 (WAST-T). https://doi.org/10.1594/PANGAEA.58931
  4. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living benthic foraminifera of station M33/1_MC-19 (CAST). https://doi.org/10.1594/PANGAEA.58933
  5. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living benthic foraminifera of station M33/1_MC-25 (EAST). https://doi.org/10.1594/PANGAEA.58934
  6. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living benthic foraminifera of station M33/1_MC-30 (SAST). https://doi.org/10.1594/PANGAEA.58935
  7. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living benthic foraminiferal fauna in surface sediments from cruise M33/1. https://doi.org/10.1594/PANGAEA.58936
  8. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living fauna of station M33/1_MC-03 (NAST). https://doi.org/10.1594/PANGAEA.58930
  9. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Abundance and diversity of living living benthic foraminifera of station M33/1_MC-15 (WAST). https://doi.org/10.1594/PANGAEA.58932
  10. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-03 (NAST), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58883
  11. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-03 (NAST), size fraction 63-125 µm. https://doi.org/10.1594/PANGAEA.58877
  12. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-03 (NAST), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58871
  13. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-13 (WAST-T), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58884
  14. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-13 (WAST-T), size fraction 63-125 µm. https://doi.org/10.1594/PANGAEA.58878
  15. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-13 (WAST-T), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58872
  16. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-15 (WAST), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58885
  17. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-15 (WAST), size fraction 63-125 µm. https://doi.org/10.1594/PANGAEA.58879
  18. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-15 (WAST), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58873
  19. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-19 (CAST), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58886
  20. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-19 (CAST), size fraction 63-125 µm. https://doi.org/10.1594/PANGAEA.58880
  21. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-19 (CAST), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58874
  22. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-25 (EAST), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58887
  23. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-25 (EAST), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58875
  24. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-25 (EAST), size fraczion 63-125 µm. https://doi.org/10.1594/PANGAEA.58881
  25. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-30 (SAST), size fraction 30-63 µm. https://doi.org/10.1594/PANGAEA.58888
  26. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-30 (SAST), size fraction 63-125 µm. https://doi.org/10.1594/PANGAEA.58882
  27. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Living benthic foraminifera at station M33/1_MC-30 (SAST), size fraction >125 µm. https://doi.org/10.1594/PANGAEA.58876
  28. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-03 (NAST), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58924
  29. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-13 (WAST-T), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58925
  30. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-15 (WAST), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58926
  31. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-19 (CAST), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58927
  32. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-25 (EAST), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58928
  33. Kurbjeweit, F; Schmiedl, G; Schiebel, R et al. (2000): Total living benthic foraminifera at station M33/1_MC-30 (SAST), size fraction >30 µm. https://doi.org/10.1594/PANGAEA.58929