Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Assmy, Philipp; Henjes, Joachim; Klaas, Christine; Smetacek, Victor (2007): Diatom abundance counted on water bottle samples from the EisenEx cruise to the Southern Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.552191, Supplement to: Assmy, P et al. (2007): Mechanisms determining species dominance in a phytoplankton bloom induced by the iron fertilization experiment EisenEx in the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 54(3), 340-362, https://doi.org/10.1016/j.dsr.2006.12.005

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
The dynamics of phytoplankton species populations recorded during the 3-week, iron-fertilization experiment EisenEx carried out in spring in the Antarctic Polar Frontal Zone are presented and discussed as the difference between growth and mortality rates. Only two cosmopolitan diatom species, the centric Chaetoceros debilis and the pennate Pseudo-nitzschia lineola, increased population density exponentially throughout the experiment to 150-fold and 90-fold of initial values respectively. Because C. debilis initial abundance was tenfold lower than that of P. lineola, the two contributed 1 % and 21 % to bloom biomass respectively at the end of the experiment, high-lighting the role of seeding in bloom formation. The other significant species increased population size at a linear rate throughout the experiment or for a short spurt phase to 3 to 18-fold of initial values. Conservative estimates of mortality rates within diatom species populations were obtained by comparing net accumulation rates of full cells with those of empty and broken frustules. The ratios were consistent over time for the various species but varied widely between them. The species-specific variation can be explained by differences in both growth and mortality rates, the latter partly due to either selective grazing or avoidance by the large protozoo- and metazooplankton populations present. Selective predation by the abundant copepod populations on protistan grazers (ciliates and heterotrophic dinoflagellates) of diatoms apparently aided diatom biomass build-up. The response patterns of populations of the phytoplankton species present fall into 6 categories comprising disparate species, indicating that phylogeny is a poor predictor of ecology. The group that did not respond to fertilization was the most diverse and included both endemic and cosmopolitan as well as background and bloom-forming species. This lack of response to the advent of favorable growth conditions indicates that proximate factors during EisenEx triggered growth only in some species but had little effect on others. We attribute the differences in behavior to ultimate factors such as seasonal effects on life cycles and other internal constraints on growth rates. The implications for our understanding of the evolutionary ecology of phytoplankton and its impact on global biogeochemical cycles are pointed out.
Project(s):
European Iron Enrichment Experiment in the Southern Ocean (EisenEx)
Coverage:
Median Latitude: -48.076825 * Median Longitude: 20.929544 * South-bound Latitude: -48.593000 * West-bound Longitude: 20.647333 * North-bound Latitude: -47.668167 * East-bound Longitude: 21.168667
Date/Time Start: 2000-11-06T23:25:00 * Date/Time End: 2000-11-29T15:33:00
Event(s):
PS58/009-2 (CTD9) * Latitude: -47.821000 * Longitude: 20.750000 * Date/Time: 2000-11-06T23:25:00 * Elevation: -4852.0 m * Location: South Atlantic * Campaign: ANT-XVIII/2 (PS58 EISENEX) * Basis: Polarstern * Device: CTD/Rosette (CTD-RO) * Comment: max gear depth: 269 m; day: T-2
PS58/011-3 * Latitude: -47.878000 * Longitude: 20.948667 * Date/Time: 2000-11-08T20:55:00 * Elevation: -4498.0 m * Location: South Atlantic * Campaign: ANT-XVIII/2 (PS58 EISENEX) * Basis: Polarstern * Device: CTD/Rosette (CTD-RO) * Comment: max gear depth: 502 m; in patch 1; in/out patch: In; day: T0
PS58/012-5 (CTD16) * Latitude: -48.104833 * Longitude: 20.862333 * Date/Time: 2000-11-09T13:01:00 * Elevation: -4570.0 m * Location: South Atlantic * Campaign: ANT-XVIII/2 (PS58 EISENEX) * Basis: Polarstern * Device: CTD/Rosette (CTD-RO) * Comment: max gear depth: 500 m; out patch 1; in/out patch: Out; day: T1
Size:
95 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text (use the following character encoding: )

Datasets listed in this publication series

  1. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/009-2. https://doi.org/10.1594/PANGAEA.323739
  2. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/011-3. https://doi.org/10.1594/PANGAEA.323740
  3. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/012-5. https://doi.org/10.1594/PANGAEA.323741
  4. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/014-4. https://doi.org/10.1594/PANGAEA.323742
  5. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/038-3. https://doi.org/10.1594/PANGAEA.323743
  6. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/041-2. https://doi.org/10.1594/PANGAEA.323744
  7. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/042-2. https://doi.org/10.1594/PANGAEA.323745
  8. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/043-2. https://doi.org/10.1594/PANGAEA.323746
  9. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/045-2. https://doi.org/10.1594/PANGAEA.323747
  10. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/046-3. https://doi.org/10.1594/PANGAEA.323748
  11. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/048-3. https://doi.org/10.1594/PANGAEA.323749
  12. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/049-3. https://doi.org/10.1594/PANGAEA.323750
  13. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/061-3. https://doi.org/10.1594/PANGAEA.323751
  14. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/088-4. https://doi.org/10.1594/PANGAEA.323752
  15. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/090-4. https://doi.org/10.1594/PANGAEA.323753
  16. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/091-4. https://doi.org/10.1594/PANGAEA.323754
  17. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/092-3. https://doi.org/10.1594/PANGAEA.323755
  18. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/107-5. https://doi.org/10.1594/PANGAEA.323756
  19. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of broken diatom frustules measured on water bottle samples at station PS58/108-1. https://doi.org/10.1594/PANGAEA.323757
  20. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/009-2. https://doi.org/10.1594/PANGAEA.323773
  21. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/011-3. https://doi.org/10.1594/PANGAEA.323774
  22. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/012-5. https://doi.org/10.1594/PANGAEA.323775
  23. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/014-4. https://doi.org/10.1594/PANGAEA.323776
  24. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/038-3. https://doi.org/10.1594/PANGAEA.323777
  25. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/041-2. https://doi.org/10.1594/PANGAEA.323778
  26. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/042-2. https://doi.org/10.1594/PANGAEA.323779
  27. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/043-2. https://doi.org/10.1594/PANGAEA.323780
  28. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/045-2. https://doi.org/10.1594/PANGAEA.323781
  29. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/046-3. https://doi.org/10.1594/PANGAEA.323782
  30. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/048-3. https://doi.org/10.1594/PANGAEA.323783
  31. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/049-3. https://doi.org/10.1594/PANGAEA.323784
  32. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/061-3. https://doi.org/10.1594/PANGAEA.323785
  33. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/088-4. https://doi.org/10.1594/PANGAEA.323786
  34. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/090-4. https://doi.org/10.1594/PANGAEA.323787
  35. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/091-4. https://doi.org/10.1594/PANGAEA.323788
  36. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/092-3. https://doi.org/10.1594/PANGAEA.323789
  37. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/107-5. https://doi.org/10.1594/PANGAEA.323790
  38. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of empty diatom frustules measured on water bottle samples at station PS58/108-1. https://doi.org/10.1594/PANGAEA.323791
  39. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/009-2. https://doi.org/10.1594/PANGAEA.323792
  40. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/011-3. https://doi.org/10.1594/PANGAEA.323793
  41. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/012-5. https://doi.org/10.1594/PANGAEA.323794
  42. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/014-4. https://doi.org/10.1594/PANGAEA.323795
  43. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/038-3. https://doi.org/10.1594/PANGAEA.323796
  44. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/041-2. https://doi.org/10.1594/PANGAEA.323797
  45. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/042-2. https://doi.org/10.1594/PANGAEA.323798
  46. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/043-2. https://doi.org/10.1594/PANGAEA.323799
  47. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/045-2. https://doi.org/10.1594/PANGAEA.323800
  48. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/046-3. https://doi.org/10.1594/PANGAEA.323801
  49. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/048-3. https://doi.org/10.1594/PANGAEA.323802
  50. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/049-3. https://doi.org/10.1594/PANGAEA.323803
  51. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/061-3. https://doi.org/10.1594/PANGAEA.323804
  52. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/088-4. https://doi.org/10.1594/PANGAEA.323805
  53. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/090-4. https://doi.org/10.1594/PANGAEA.323806
  54. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/091-4. https://doi.org/10.1594/PANGAEA.323807
  55. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/092-3. https://doi.org/10.1594/PANGAEA.323808
  56. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/107-5. https://doi.org/10.1594/PANGAEA.323809
  57. Assmy, P; Henjes, J; Klaas, C et al. (2007): Abundance of non-diatom phytoplankton measured on water bottle samples at station PS58/108-1. https://doi.org/10.1594/PANGAEA.323810
  58. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/009-2. https://doi.org/10.1594/PANGAEA.323456
  59. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/011-3. https://doi.org/10.1594/PANGAEA.323665
  60. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/012-5. https://doi.org/10.1594/PANGAEA.323664
  61. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/014-4. https://doi.org/10.1594/PANGAEA.323663
  62. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/038-3. https://doi.org/10.1594/PANGAEA.323662
  63. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/041-2. https://doi.org/10.1594/PANGAEA.323661
  64. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/042-2. https://doi.org/10.1594/PANGAEA.323659
  65. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/043-2. https://doi.org/10.1594/PANGAEA.323672
  66. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/045-2. https://doi.org/10.1594/PANGAEA.323658
  67. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/046-3. https://doi.org/10.1594/PANGAEA.323657
  68. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/048-3. https://doi.org/10.1594/PANGAEA.323656
  69. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/049-3. https://doi.org/10.1594/PANGAEA.323655
  70. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/061-3. https://doi.org/10.1594/PANGAEA.323654
  71. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/088-4. https://doi.org/10.1594/PANGAEA.323653
  72. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/090-4. https://doi.org/10.1594/PANGAEA.323652
  73. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/091-4. https://doi.org/10.1594/PANGAEA.323668
  74. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/092-3. https://doi.org/10.1594/PANGAEA.323651
  75. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/107-5. https://doi.org/10.1594/PANGAEA.323650
  76. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom abundance measured on water bottle samples at station PS58/108-1. https://doi.org/10.1594/PANGAEA.323649
  77. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/009-2. https://doi.org/10.1594/PANGAEA.323711
  78. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/011-3. https://doi.org/10.1594/PANGAEA.323696
  79. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/012-5. https://doi.org/10.1594/PANGAEA.323697
  80. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/014-4. https://doi.org/10.1594/PANGAEA.323698
  81. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/038-3. https://doi.org/10.1594/PANGAEA.323699
  82. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/041-2. https://doi.org/10.1594/PANGAEA.323701
  83. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/042-2. https://doi.org/10.1594/PANGAEA.323702
  84. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/043-2. https://doi.org/10.1594/PANGAEA.323703
  85. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/045-2. https://doi.org/10.1594/PANGAEA.323704
  86. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/046-3. https://doi.org/10.1594/PANGAEA.323705
  87. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/048-3. https://doi.org/10.1594/PANGAEA.323706
  88. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/049-3. https://doi.org/10.1594/PANGAEA.323707
  89. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/061-3. https://doi.org/10.1594/PANGAEA.323708
  90. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/088-4. https://doi.org/10.1594/PANGAEA.323709
  91. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/090-4. https://doi.org/10.1594/PANGAEA.323712
  92. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/091-4. https://doi.org/10.1594/PANGAEA.323713
  93. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/092-3. https://doi.org/10.1594/PANGAEA.323714
  94. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/107-5. https://doi.org/10.1594/PANGAEA.323693
  95. Assmy, P; Henjes, J; Klaas, C et al. (2007): Diatom biomass as carbon measured on water bottle samples at station PS58/108-1. https://doi.org/10.1594/PANGAEA.323695