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Le Borgne, Robert; Landry, Michael R (2003): Plankton abundances in water samples of cruise EBENE [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.740032, Supplement to: Le Borgne, R; Landry, MR (2003): EBENE: A JGOFS investigation of plankton variability and trophic interactions in the equatorial Pacific (180°). Journal of Geophysical Research: Oceans, 108(C12), 8136, https://doi.org/10.1029/2001JC001252

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Abstract:
The Etude du Broutage en Zone Equatoriale (EBENE) transect (8°S–8°N) explored the equatorial high-nutrient, low-chlorophyll (HNLC) zone and adjacent oligotrophic areas during a La Niña period (October–November 1996). During this time the passage of a tropical instability wave also influenced the region north of the equator. We present a brief summary of EBENE findings, with an emphasis on phytoplankton utilization by the assemblage of protistan and animal consumers. Despite significant variability over the diel cycle, phytoplankton biomass at the equator was relatively constant on a 24-hour timescale, denoting a dynamic balance between growth and losses. The magnitude of the daily cycle in phytoplankton biomass was well constrained by in situ observations of the diel variability in pigments and suspended particulates, by 14C uptake rates from in situ incubations, and from experimental determinations of specific growth and grazing rates. The general equilibrium of production and grazing processes is illustrated by applying biomass-specific grazing rates from the equatorial station to measured planktonic biomass along the EBENE transect and comparing them to measured 14C uptake. Most of the grazing turnover is supported by the production of Prochloroccus (31%) and picoeukaryotic algae (34%). Among the consumers, microzooplankton (<200 µm) account for 59–98% of the grazing losses. The coherence of the results obtained by independent methods suggests that the essential features of the system have been adequately represented by rate and standing stock assessments from the EBENE study.
Project(s):
Biogeochemical Processes in the Oceans and Fluxes (PROOF)
Joint Global Ocean Flux Study (JGOFS)
Coverage:
Median Latitude: -0.978261 * Median Longitude: -179.922101 * South-bound Latitude: -7.983333 * West-bound Longitude: 179.883333 * North-bound Latitude: 8.000000 * East-bound Longitude: -179.800000
Date/Time Start: 1996-10-26T10:44:00 * Date/Time End: 1996-11-12T01:02:00
Event(s):
EBENE_001 * Latitude: -7.983333 * Longitude: -179.850000 * Date/Time: 1996-10-26T10:44:00 * Location: Equatorial Pacific * Campaign: EBENE * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
EBENE_002 * Latitude: -6.983333 * Longitude: -179.833333 * Date/Time: 1996-10-26T20:52:00 * Location: Equatorial Pacific * Campaign: EBENE * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
EBENE_003 * Latitude: -5.983333 * Longitude: -179.850000 * Date/Time: 1996-10-27T05:43:00 * Location: Equatorial Pacific * Campaign: EBENE * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
46 datasets

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Datasets listed in this publication series

  1. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_001. https://doi.org/10.1594/PANGAEA.187856
  2. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_002. https://doi.org/10.1594/PANGAEA.187857
  3. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_003. https://doi.org/10.1594/PANGAEA.187858
  4. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_004. https://doi.org/10.1594/PANGAEA.187859
  5. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_005. https://doi.org/10.1594/PANGAEA.187860
  6. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_006. https://doi.org/10.1594/PANGAEA.187861
  7. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_056. https://doi.org/10.1594/PANGAEA.187862
  8. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_057. https://doi.org/10.1594/PANGAEA.187863
  9. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_058. https://doi.org/10.1594/PANGAEA.187864
  10. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_059. https://doi.org/10.1594/PANGAEA.187865
  11. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_060. https://doi.org/10.1594/PANGAEA.187866
  12. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_061. https://doi.org/10.1594/PANGAEA.187867
  13. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_062. https://doi.org/10.1594/PANGAEA.187868
  14. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_063. https://doi.org/10.1594/PANGAEA.187869
  15. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_064. https://doi.org/10.1594/PANGAEA.187870
  16. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_065. https://doi.org/10.1594/PANGAEA.187871
  17. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_066. https://doi.org/10.1594/PANGAEA.187872
  18. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_067. https://doi.org/10.1594/PANGAEA.187873
  19. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_068. https://doi.org/10.1594/PANGAEA.187874
  20. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_069. https://doi.org/10.1594/PANGAEA.187875
  21. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_072. https://doi.org/10.1594/PANGAEA.187876
  22. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_073. https://doi.org/10.1594/PANGAEA.187877
  23. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_074. https://doi.org/10.1594/PANGAEA.187878
  24. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_075. https://doi.org/10.1594/PANGAEA.187879
  25. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_123. https://doi.org/10.1594/PANGAEA.187880
  26. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_124. https://doi.org/10.1594/PANGAEA.187881
  27. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_125. https://doi.org/10.1594/PANGAEA.187882
  28. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_126. https://doi.org/10.1594/PANGAEA.187883
  29. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_127. https://doi.org/10.1594/PANGAEA.187884
  30. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_128. https://doi.org/10.1594/PANGAEA.187885
  31. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_129. https://doi.org/10.1594/PANGAEA.187886
  32. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_130. https://doi.org/10.1594/PANGAEA.187887
  33. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_131. https://doi.org/10.1594/PANGAEA.187888
  34. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_132. https://doi.org/10.1594/PANGAEA.187889
  35. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_133. https://doi.org/10.1594/PANGAEA.187890
  36. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_134. https://doi.org/10.1594/PANGAEA.187891
  37. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_135. https://doi.org/10.1594/PANGAEA.187892
  38. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_137. https://doi.org/10.1594/PANGAEA.187893
  39. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_140. https://doi.org/10.1594/PANGAEA.187894
  40. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_141. https://doi.org/10.1594/PANGAEA.187895
  41. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_142. https://doi.org/10.1594/PANGAEA.187896
  42. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_143. https://doi.org/10.1594/PANGAEA.187897
  43. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_144. https://doi.org/10.1594/PANGAEA.187898
  44. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_145. https://doi.org/10.1594/PANGAEA.187899
  45. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_146. https://doi.org/10.1594/PANGAEA.187900
  46. Le Borgne, R; Landry, MR (2003): Net zooplankton at station EBENE_147. https://doi.org/10.1594/PANGAEA.187901