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Schiebel, Ralf (2002): Pteropoda abundances in multinet samples. PANGAEA, https://doi.org/10.1594/PANGAEA.787478, Supplement to: Schiebel, R (2002): Planktic foraminiferal sedimentation and the marine calcite budget. Global Biogeochemical Cycles, 16(4), 1065, https://doi.org/10.1029/2001GB001459

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Abstract:
The vertical flux and sedimentation rate of planktic foraminiferal tests are quantified and a global planktic foraminiferal CaCO3 budget is presented. Test and calcite flux rates are calculated according to the distribution of species obtained from multinet and sediment trap samples. Modern planktic foraminiferal population dynamics are discussed as a prerequisite for the quantification of the calcite budget, highlighting the importance of ecological, autecological (e.g., reproduction), and biogeochemical conditions that determine the presence or absence of species. To complete the open-marine, particulate CaCO3 inventory, the contribution of coccolithophores, pteropods, and calcareous dinophytes is discussed. Based on the studied regions, the global planktic foraminiferal calcite flux rate at 100 m depth amounts to 1.3–3.2 Gt/yr, equivalent to 23–56% of the total open marine CaCO3 flux. The preservation of tests varies on a regional and temporal scale, and is affected by local hydrography and dissolution. During most of the year (off-peak periods), many tests dissolve above 700-m water depth while settling through the water column, with on average only 1–3% of the initially exported CaCO3 reaching the deep-seafloor. Pulsed flux events, mass dumps of fast settling particles, yield a major contribution of tests to the formation of deep-sea sediments. On average, ~25% of the initially produced planktic foraminiferal test CaCO3 settles on the seafloor. The total planktic foraminiferal contribution of CaCO3 to global surface sediments amounts to 0.36–0.88 Gt/yr, ?32–80% of the total deep-marine calcite budget.
Project(s):
Paleoceanography at Tübingen University (GeoTü)
Coverage:
Median Latitude: 46.125569 * Median Longitude: -19.410733 * South-bound Latitude: 33.939867 * West-bound Longitude: -21.838683 * North-bound Latitude: 47.677267 * East-bound Longitude: -18.451983
Date/Time Start: 1992-03-26T10:35:00 * Date/Time End: 1992-05-11T05:39:00
Comment:
For planktonioc foraminiferal data see Schiebel and Hemleben (2000) dataset: doi:10.1594/PANGAEA.728676
Size:
36 datasets

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Datasets listed in this publication series

  1. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN603. https://doi.org/10.1594/PANGAEA.75705
  2. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN604. https://doi.org/10.1594/PANGAEA.75706
  3. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN605. https://doi.org/10.1594/PANGAEA.75707
  4. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN606. https://doi.org/10.1594/PANGAEA.75708
  5. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN608. https://doi.org/10.1594/PANGAEA.75710
  6. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN609. https://doi.org/10.1594/PANGAEA.75711
  7. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN610. https://doi.org/10.1594/PANGAEA.75712
  8. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN611. https://doi.org/10.1594/PANGAEA.75713
  9. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN613. https://doi.org/10.1594/PANGAEA.75714
  10. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN614. https://doi.org/10.1594/PANGAEA.75715
  11. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN615. https://doi.org/10.1594/PANGAEA.75716
  12. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN619. https://doi.org/10.1594/PANGAEA.75717
  13. Schiebel, R (2002): Pteropoda counts of multinet M21/1_MSN620. https://doi.org/10.1594/PANGAEA.75718
  14. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN624. https://doi.org/10.1594/PANGAEA.75891
  15. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN627. https://doi.org/10.1594/PANGAEA.75892
  16. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN628. https://doi.org/10.1594/PANGAEA.75893
  17. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN629. https://doi.org/10.1594/PANGAEA.75894
  18. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN638. https://doi.org/10.1594/PANGAEA.75895
  19. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN639. https://doi.org/10.1594/PANGAEA.75896
  20. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN640. https://doi.org/10.1594/PANGAEA.75897
  21. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN641. https://doi.org/10.1594/PANGAEA.75898
  22. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN642. https://doi.org/10.1594/PANGAEA.75899
  23. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN643. https://doi.org/10.1594/PANGAEA.75900
  24. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN644. https://doi.org/10.1594/PANGAEA.75901
  25. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN647. https://doi.org/10.1594/PANGAEA.75902
  26. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN648. https://doi.org/10.1594/PANGAEA.75903
  27. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN649. https://doi.org/10.1594/PANGAEA.75904
  28. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN650. https://doi.org/10.1594/PANGAEA.75905
  29. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN651. https://doi.org/10.1594/PANGAEA.75906
  30. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN652. https://doi.org/10.1594/PANGAEA.75907
  31. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN656. https://doi.org/10.1594/PANGAEA.75908
  32. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN657. https://doi.org/10.1594/PANGAEA.75909
  33. Schiebel, R (2002): Pteropoda counts of multinet M21/2_MSN658. https://doi.org/10.1594/PANGAEA.75910
  34. Schiebel, R (2002): Pteropoda counts of multinet M21/3_MSN661. https://doi.org/10.1594/PANGAEA.75644
  35. Schiebel, R (2002): Pteropoda counts of multinet M21/3_MSN662. https://doi.org/10.1594/PANGAEA.75645
  36. Schiebel, R (2002): Pteropoda counts of multinet M21/3_MSN663. https://doi.org/10.1594/PANGAEA.75646