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Edelman-Furstenberg, Yael; Scherbacher, Maria; Hemleben, Christoph; Almogi-Labin, Ahuva (2001): Benthic foraminifera of the Red Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.734150, Supplement to: Edelman-Furstenberg, Y et al. (2001): Deep-sea benthic foraminifera from the central Red Sea. Journal of Foraminiferal Research, 31(1), 48-59, https://doi.org/10.2113/0310048

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Abstract:
The distribution of living (Rose Bengal-stained), dead and fossil benthic foraminifera was investigated in six short cores (multicores, 30-32 cm total length) recovered from the central Red Sea. The ecological preferences as well as the relationship between the live and dead/fossil assemblages (preserved down-core) were examined. The sites, located along a W-E profile and between the depth of 366 and 1782 m, extend from the center of the oxygen minimum zone (OMZ, ~200-650 m), through its margin at ~600 m, and down to the well-aerated deep-water environment. Live (Rose-Bengal stained) and coexisting dead foraminifera were studied in the upper 5 cm of each of the sites, and the fossil record was studied down to ~32 cm. Q-mode Principal Component Analysis was used and four distinct foraminiferal fossil assemblages were determined. These assemblages follow different water mass properties. In the center of the OMZ, where the organic carbon content is highest and the oxygen concentration is lowest (<=0.5 ml O2/l), the Bolivina persiensis-Bulimina marginata-Discorbinella rhodiensis assemblage dominates. The slightly more aerated and lower organic-carbon-content seafloor, at the margin of the OMZ, is characterized by the Neouvigerina porrecta-Gyroidinoides cf. G. soldanii assemblage. The transitional environment, between 900-1200 m, with its well-aerated and oligotrophic seafloor, is dominated by the Neouvigerina ampullacea-Cibicides mabahethi assemblage. The deeper water (>1500 m), characterized by the most oxygenated and oligotrophic seafloor conditions, is associated with the Astrononion sp. A-Hanzawaia sp. A assemblage.
Throughout the Red Sea extremely high values of temperature and salinity are constant below ~200 m depth, but the flux of organic matter to the sea floor varies considerably with bathymetry and appears to be the main controlling factor governing the distribution pattern of the benthic foraminifera. Comparison between live and the dead/fossil assemblages reveals a large difference between the two. Processes that may control this difference include species-specific high turnover rates, and preferential predation and loss of fragile taxa (either by chemical or microbial processes). Significant variations in the degree of loss of the organic-cemented agglutinants were observed down core. This group is preserved down to 5-10 cm at the shallow OMZ sites and down to greater depths at well-aerated and oligotrophic sites. The lower rate of disintegration of these forms, in the deeper locations of the Red Sea, may be related to low microbial activity. This results in the preservation of increasing numbers of organic-cemented shells down-core.
Project(s):
Paleoceanography at Tübingen University (GeoTü)
Coverage:
Median Latitude: 19.724368 * Median Longitude: 37.960402 * South-bound Latitude: 19.130000 * West-bound Longitude: 37.253333 * North-bound Latitude: 19.986667 * East-bound Longitude: 39.115000
Date/Time Start: 1987-02-08T16:43:00 * Date/Time End: 1987-02-08T16:43:00
Event(s):
M5/2_100MC * Latitude: 19.638333 * Longitude: 37.388333 * Date/Time: 1987-02-10T00:00:00 * Elevation: -810.0 m * Campaign: M5/2 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
M5/2_107MC * Latitude: 19.130000 * Longitude: 39.115000 * Date/Time: 1987-02-12T00:00:00 * Elevation: -1161.0 m * Campaign: M5/2 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
M5/2_88MC * Latitude: 19.620000 * Longitude: 37.253333 * Date/Time: 1987-02-07T00:00:00 * Elevation: -366.0 m * Campaign: M5/2 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
Size:
29 datasets

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Datasets listed in this publication series

  1. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): (Table 2) Age determination of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.734146
  2. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): (Table 2) Age determination of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.734147
  3. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): (Table 2) Age determination of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.734148
  4. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): (Table 2) Age determination of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.734149
  5. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_100MC. https://doi.org/10.1594/PANGAEA.78156
  6. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_107MC. https://doi.org/10.1594/PANGAEA.79908
  7. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.79909
  8. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.79911
  9. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.79920
  10. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Absolute abundance of dead benthic foraminifera of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.80007
  11. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Benthic foraminifera factors of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.57458
  12. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Benthic foraminifera factors of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.57459
  13. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Benthic foraminifera factors of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.57460
  14. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Benthic foraminifera factors of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.57461
  15. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_100MC. https://doi.org/10.1594/PANGAEA.77386
  16. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_107MC. https://doi.org/10.1594/PANGAEA.77387
  17. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.77388
  18. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.77446
  19. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.77451
  20. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of dead benthic foraminifera of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.77459
  21. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of live benthic foraminifera of sediment core M5/2_107MC. https://doi.org/10.1594/PANGAEA.78106
  22. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of live benthic foraminifera of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.78132
  23. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of live benthic foraminifera of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.78141
  24. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of live benthic foraminifera of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.78154
  25. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): Relative abundance of live benthic foraminifera of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.78155
  26. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): TOC of sediment core M5/2_88MC. https://doi.org/10.1594/PANGAEA.77543
  27. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): TOC of sediment core M5/2_91MC. https://doi.org/10.1594/PANGAEA.77541
  28. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): TOC of sediment core M5/2_93MC. https://doi.org/10.1594/PANGAEA.77540
  29. Edelman-Furstenberg, Y; Scherbacher, M; Hemleben, C et al. (2001): TOC of sediment core M5/2_98MC. https://doi.org/10.1594/PANGAEA.77538