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Schiebel, Ralf; Hemleben, Christoph (2000): Planktic foraminiferal populations and test flux in the eastern North Atlantic Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.728676, Supplement to: Schiebel, R; Hemleben, C (2000): Interannual variability of planktic foraminiferal populations and test flux in the eastern North Atlantic Ocean (JGOFS). Deep Sea Research Part II: Topical Studies in Oceanography, 47(9-11), 1809-1852, https://doi.org/10.1016/S0967-0645(00)00008-4

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Abstract:
Planktic foraminiferal assemblages vary in response to seasonal fluctuations of hydrographic properties, between water masses, and after periodical changes and episodic events (e.g. reproduction, storms). Distinct annual variability of the planktic foraminiferal flux is also known from sediment trap data. In this paper we discuss the short-term impacts on interannual flux rates based on data from opening-closing net hauls obtained between the ocean surface and 500 m water depth. Data were recorded during April, May, June, and August at around 47°N, 20°W (BIOTRANS) in 1988, 1989, 1990, 1992, 1993, and during May 1989 and 1992 at 57°N, 20-22°W. Species assemblages closely resemble each other when comparing the mixed layer fauna with the fauna of the upper 100 m and the upper 500 m of the water column. In addition, species assemblages >100 µm are almost indistinguishable from assemblages that are >125 µm in test size. The standing stock of planktic foraminifers at BIOTRANS can vary by more than one order of magnitude over different years; however, species assemblages may be similar when comparing corresponding seasons. Early summer assemblages (June) are distinctly different from late summer assemblages (August). Significant variations in the species composition during spring (April/May) are independent of the mixed layer depth. Spring assemblages are characterized by high numbers of Globigerinita glutinata. In particular, day-to-day variations of the number of specimens and in species composition may have the same order of magnitude as interannual variations. This appears to be independent of the reproduction cycle. Species assemblages at 47°N and 57°N are similar during spring, although surface water temperatures and salinities differ by up to 10°C and 0.7 (PSU). We suggest that the main factors controlling the planktic foraminiferal fauna are the trophic properties in the upper ocean productive layer.
Planktic foraminiferal carbonate flux as calculated from assemblages reveals large seasonal variations, a quasi-annual periodicity in flux levels, and substantial differences in timing and magnitude of peak fluxes. At the BIOTRANS station, the average annual planktic foraminiferal CaCO3 fluxes at 100 and 500 m depth are estimated to be 22.4 and 10.0 g/m**2/yr, respectively.
Project(s):
Institute for Geosciences, Christian Albrechts University, Kiel (GIK/IfG)
Joint Global Ocean Flux Study (JGOFS)
Paleoceanography at Tübingen University (GeoTü)
Coverage:
Median Latitude: 45.928970 * Median Longitude: -19.431226 * South-bound Latitude: 33.939867 * West-bound Longitude: -22.304000 * North-bound Latitude: 57.995833 * East-bound Longitude: -17.757050
Date/Time Start: 1988-04-08T09:40:00 * Date/Time End: 1993-06-16T08:56:00
Event(s):
FCA97C_MSN1339 (45) * Latitude: 32.661667 * Longitude: -30.585000 * Date/Time: 1997-08-01T16:40:00 * Elevation: -3225.0 m * Location: Azores front * Campaign: FCA97 * Basis: Arquipelago * Method/Device: Multiple opening/closing net (MSN)
FCA97C_MSN1340 (45) * Latitude: 32.662250 * Longitude: -30.587889 * Date/Time: 1997-08-01T17:55:00 * Elevation: -3225.0 m * Location: Azores front * Campaign: FCA97 * Basis: Arquipelago * Method/Device: Multiple opening/closing net (MSN)
FCA97C_MSN1343 (52) * Latitude: 32.101917 * Longitude: -31.664778 * Date/Time: 1997-08-02T19:35:00 * Elevation: -4134.0 m * Location: Azores front * Campaign: FCA97 * Basis: Arquipelago * Method/Device: Multiple opening/closing net (MSN)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
153 datasets

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Datasets listed in this publication series

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  1. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN91. https://doi.org/10.1594/PANGAEA.75847
  2. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN95. https://doi.org/10.1594/PANGAEA.75848
  3. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN96. https://doi.org/10.1594/PANGAEA.76057
  4. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN100. https://doi.org/10.1594/PANGAEA.75839
  5. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN116. https://doi.org/10.1594/PANGAEA.75840
  6. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN119. https://doi.org/10.1594/PANGAEA.75841
  7. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN125. https://doi.org/10.1594/PANGAEA.75842
  8. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN137. https://doi.org/10.1594/PANGAEA.75843
  9. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN140. https://doi.org/10.1594/PANGAEA.75844
  10. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN148. https://doi.org/10.1594/PANGAEA.75845
  11. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M6/7_MSN150. https://doi.org/10.1594/PANGAEA.75846
  12. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN218. https://doi.org/10.1594/PANGAEA.75427
  13. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN219. https://doi.org/10.1594/PANGAEA.75428
  14. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN229. https://doi.org/10.1594/PANGAEA.75429
  15. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN231. https://doi.org/10.1594/PANGAEA.75430
  16. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN232. https://doi.org/10.1594/PANGAEA.75431
  17. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN234. https://doi.org/10.1594/PANGAEA.75432
  18. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN238. https://doi.org/10.1594/PANGAEA.75433
  19. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN251. https://doi.org/10.1594/PANGAEA.75434
  20. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN261. https://doi.org/10.1594/PANGAEA.75435
  21. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN262. https://doi.org/10.1594/PANGAEA.75436
  22. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN265. https://doi.org/10.1594/PANGAEA.75437
  23. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN268. https://doi.org/10.1594/PANGAEA.75438
  24. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN284. https://doi.org/10.1594/PANGAEA.75440
  25. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN295. https://doi.org/10.1594/PANGAEA.75441
  26. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN297. https://doi.org/10.1594/PANGAEA.75442
  27. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN298. https://doi.org/10.1594/PANGAEA.75443
  28. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN315. https://doi.org/10.1594/PANGAEA.75444
  29. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN317. https://doi.org/10.1594/PANGAEA.75445
  30. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN319. https://doi.org/10.1594/PANGAEA.75446
  31. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN322. https://doi.org/10.1594/PANGAEA.75447
  32. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN332. https://doi.org/10.1594/PANGAEA.75448
  33. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M10/2_MSN334. https://doi.org/10.1594/PANGAEA.75449
  34. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN533. https://doi.org/10.1594/PANGAEA.75620
  35. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN533. https://doi.org/10.1594/PANGAEA.75606
  36. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN535. https://doi.org/10.1594/PANGAEA.75621
  37. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN535. https://doi.org/10.1594/PANGAEA.75607
  38. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN536. https://doi.org/10.1594/PANGAEA.75622
  39. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN536. https://doi.org/10.1594/PANGAEA.75608
  40. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN538. https://doi.org/10.1594/PANGAEA.75623
  41. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN538. https://doi.org/10.1594/PANGAEA.75609
  42. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN541. https://doi.org/10.1594/PANGAEA.75624
  43. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN541. https://doi.org/10.1594/PANGAEA.75610
  44. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN543. https://doi.org/10.1594/PANGAEA.75625
  45. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN543. https://doi.org/10.1594/PANGAEA.75611
  46. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN545. https://doi.org/10.1594/PANGAEA.75626
  47. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN545. https://doi.org/10.1594/PANGAEA.75612
  48. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN547. https://doi.org/10.1594/PANGAEA.75627
  49. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN547. https://doi.org/10.1594/PANGAEA.75613
  50. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN557. https://doi.org/10.1594/PANGAEA.75628
  51. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN557. https://doi.org/10.1594/PANGAEA.75614
  52. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN558. https://doi.org/10.1594/PANGAEA.75629
  53. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN558. https://doi.org/10.1594/PANGAEA.75615
  54. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN559. https://doi.org/10.1594/PANGAEA.75630
  55. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN559. https://doi.org/10.1594/PANGAEA.75616
  56. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN560. https://doi.org/10.1594/PANGAEA.75631
  57. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN560. https://doi.org/10.1594/PANGAEA.75617
  58. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN561. https://doi.org/10.1594/PANGAEA.75632
  59. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN561. https://doi.org/10.1594/PANGAEA.75618
  60. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M12/3_MSN562. https://doi.org/10.1594/PANGAEA.75633
  61. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M12/3_MSN562. https://doi.org/10.1594/PANGAEA.75619
  62. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN603. https://doi.org/10.1594/PANGAEA.75690
  63. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN603. https://doi.org/10.1594/PANGAEA.75695
  64. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN604. https://doi.org/10.1594/PANGAEA.75691
  65. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN604. https://doi.org/10.1594/PANGAEA.75677
  66. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN605. https://doi.org/10.1594/PANGAEA.75692
  67. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN605. https://doi.org/10.1594/PANGAEA.75678
  68. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN606. https://doi.org/10.1594/PANGAEA.75693
  69. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN606. https://doi.org/10.1594/PANGAEA.75679
  70. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN607. https://doi.org/10.1594/PANGAEA.75694
  71. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN607. https://doi.org/10.1594/PANGAEA.75680
  72. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN608. https://doi.org/10.1594/PANGAEA.75696
  73. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN608. https://doi.org/10.1594/PANGAEA.75681
  74. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN609. https://doi.org/10.1594/PANGAEA.75697
  75. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN609. https://doi.org/10.1594/PANGAEA.75682
  76. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN610. https://doi.org/10.1594/PANGAEA.75698
  77. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN610. https://doi.org/10.1594/PANGAEA.75683
  78. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN611. https://doi.org/10.1594/PANGAEA.75699
  79. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN611. https://doi.org/10.1594/PANGAEA.75684
  80. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN613. https://doi.org/10.1594/PANGAEA.75700
  81. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN613. https://doi.org/10.1594/PANGAEA.75685
  82. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN614. https://doi.org/10.1594/PANGAEA.75701
  83. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN614. https://doi.org/10.1594/PANGAEA.75686
  84. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN615. https://doi.org/10.1594/PANGAEA.75702
  85. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN615. https://doi.org/10.1594/PANGAEA.75687
  86. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN619. https://doi.org/10.1594/PANGAEA.75703
  87. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN619. https://doi.org/10.1594/PANGAEA.75688
  88. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/1_MSN620. https://doi.org/10.1594/PANGAEA.75704
  89. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/1_MSN620. https://doi.org/10.1594/PANGAEA.75689
  90. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN624. https://doi.org/10.1594/PANGAEA.75871
  91. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/2_MSN624. https://doi.org/10.1594/PANGAEA.75849
  92. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN627. https://doi.org/10.1594/PANGAEA.75872
  93. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/2_MSN627. https://doi.org/10.1594/PANGAEA.75850
  94. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN628. https://doi.org/10.1594/PANGAEA.75873
  95. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/2_MSN628. https://doi.org/10.1594/PANGAEA.75851
  96. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN629. https://doi.org/10.1594/PANGAEA.75874
  97. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/2_MSN629. https://doi.org/10.1594/PANGAEA.75852
  98. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN638. https://doi.org/10.1594/PANGAEA.75875
  99. Schiebel, R; Hemleben, C (2000): Total foraminifera counts of multinet M21/2_MSN638. https://doi.org/10.1594/PANGAEA.75853
  100. Schiebel, R; Hemleben, C (2000): Plasm bearing foraminifera counts of multinet M21/2_MSN639. https://doi.org/10.1594/PANGAEA.75876

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