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Le Borgne, Robert; Rodier, Martine (1997): Zooplankton in the equatorial Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.740014, Supplement to: Le Borgne, R; Rodier, M (1997): Net zooplankton and the biological pump: a comparison between the oligotrophic and mesotrophic equatorial Pacific. Deep Sea Research Part II: Topical Studies in Oceanography, 44(9-10), 2003-2023, https://doi.org/10.1016/S0967-0645(97)00034-9

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Abstract:
Structure and functioning of the zooplankton community and their consequences on the export fluxes of carbon, nitrogen and phosphorus were studied in two contrasting systems of the equatorial Pacific: the oligotrophic TTS (Typical Tropical Structure) to the west, and the mesotrophic HNLC (High Nutrient-Low Chlorophyll) in the central Pacific. Data were collected during the FLUPAC cruise equatorial transect (September-October 1994) of R.V.L'Atalante and four 6–8-day long time-series stations made between 165°E and 150°W. Along the equator, a sharp 2.5-fold increase in mesozooplankton biomass (200–2000 pm) was observed between 174° and 172°W, with a simultaneous change in surface salinity and chlorophyll concentration, corresponding to the shift between the TTS and HNLC systems. No significant zonal trend was observed within the two systems. Compared with TTS, HNLC presented a significantly greater contribution of the (500–2000 µm) size class to total mesozooplankton biomass, less diel variations, and a shallower vertical distribution. Lower metabolic rates in HNLC were accounted for by different taxonomic compositions in the two areas. Microzooplankton (35–200 gm) had a rather uniform biomass in TTS and HNLC, presented no significant diel variations in the 0–100 or 0–200 m layers, and displayed a shallower vertical distribution than the mesozooplankton. Consequences of such zooplanktonic features on the “biological pump” are assessed. Dissolved nitrogen (DN) and phosphorus (DP) active fluxes, resulting from excretion of interzonal mesozooplankton migrants were 2.1 times higher in the TTS than in the HNLC. However, dissolved inorganic carbon active fluxes were equal in the TTS and HNLC systems, due to differences in C, N, P metabolisms. Combined mesozooplankton and estimated micronekton nitrogen active fluxes represented 40% of the passive flux as measured by sediment traps in the TTS, and 9% in the HNLC. Estimates of mesozooplankton fecal production in the pbotic zone lead to a 2-fold increment between the oligotrophic and mesotrophic stations, and a larger contribution of the fecal production to the sinking flux. It is, therefore, concluded that the mesozooplankton role in the biological pump is mainly passive in the HNLC system, in contrast to the TTS site.
Project(s):
Biogeochemical Processes in the Oceans and Fluxes (PROOF)
Joint Global Ocean Flux Study (JGOFS)
Coverage:
Median Latitude: -1.464457 * Median Longitude: -178.477944 * South-bound Latitude: -15.000000 * West-bound Longitude: 164.983300 * North-bound Latitude: 5.983300 * East-bound Longitude: -149.050000
Date/Time Start: 1994-09-24T17:57:00 * Date/Time End: 1994-10-26T03:04:00
Event(s):
FLUPAC_001 * Latitude: -15.000000 * Longitude: 165.000000 * Date/Time: 1994-09-24T17:57:00 * Campaign: FLUPAC * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
FLUPAC_002 * Latitude: -14.000000 * Longitude: 165.000000 * Date/Time: 1994-09-25T02:51:00 * Location: Equatorial Pacific * Campaign: FLUPAC * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
FLUPAC_003 * Latitude: -12.983300 * Longitude: 164.983300 * Date/Time: 1994-09-25T10:56:00 * Location: Equatorial Pacific * Campaign: FLUPAC * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
68 datasets

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Datasets listed in this publication series

  1. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_001. https://doi.org/10.1594/PANGAEA.186846
  2. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_002. https://doi.org/10.1594/PANGAEA.186847
  3. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_003. https://doi.org/10.1594/PANGAEA.186848
  4. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_004. https://doi.org/10.1594/PANGAEA.186849
  5. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_005. https://doi.org/10.1594/PANGAEA.186850
  6. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_006. https://doi.org/10.1594/PANGAEA.186851
  7. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_007. https://doi.org/10.1594/PANGAEA.186852
  8. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_008. https://doi.org/10.1594/PANGAEA.186853
  9. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_009. https://doi.org/10.1594/PANGAEA.186854
  10. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_010. https://doi.org/10.1594/PANGAEA.186855
  11. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_011. https://doi.org/10.1594/PANGAEA.186856
  12. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_012. https://doi.org/10.1594/PANGAEA.186857
  13. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_013. https://doi.org/10.1594/PANGAEA.186858
  14. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_014. https://doi.org/10.1594/PANGAEA.186859
  15. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_015. https://doi.org/10.1594/PANGAEA.186860
  16. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_016. https://doi.org/10.1594/PANGAEA.186861
  17. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_017. https://doi.org/10.1594/PANGAEA.186862
  18. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_018. https://doi.org/10.1594/PANGAEA.186863
  19. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_019. https://doi.org/10.1594/PANGAEA.186864
  20. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_020. https://doi.org/10.1594/PANGAEA.186865
  21. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_021. https://doi.org/10.1594/PANGAEA.186866
  22. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_022. https://doi.org/10.1594/PANGAEA.186867
  23. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_024. https://doi.org/10.1594/PANGAEA.186868
  24. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_027. https://doi.org/10.1594/PANGAEA.186869
  25. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_030. https://doi.org/10.1594/PANGAEA.186870
  26. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_033. https://doi.org/10.1594/PANGAEA.186871
  27. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_036. https://doi.org/10.1594/PANGAEA.186872
  28. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_039. https://doi.org/10.1594/PANGAEA.186873
  29. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_042. https://doi.org/10.1594/PANGAEA.186874
  30. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_045. https://doi.org/10.1594/PANGAEA.186875
  31. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_048. https://doi.org/10.1594/PANGAEA.186876
  32. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_051. https://doi.org/10.1594/PANGAEA.186877
  33. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_054. https://doi.org/10.1594/PANGAEA.186878
  34. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_059. https://doi.org/10.1594/PANGAEA.186879
  35. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_062. https://doi.org/10.1594/PANGAEA.186880
  36. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_063. https://doi.org/10.1594/PANGAEA.186881
  37. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_064. https://doi.org/10.1594/PANGAEA.186882
  38. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_065. https://doi.org/10.1594/PANGAEA.186883
  39. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_066. https://doi.org/10.1594/PANGAEA.186884
  40. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_067. https://doi.org/10.1594/PANGAEA.186885
  41. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_068. https://doi.org/10.1594/PANGAEA.186886
  42. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_069. https://doi.org/10.1594/PANGAEA.186887
  43. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_070. https://doi.org/10.1594/PANGAEA.186888
  44. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_071. https://doi.org/10.1594/PANGAEA.186889
  45. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_072. https://doi.org/10.1594/PANGAEA.186890
  46. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_073. https://doi.org/10.1594/PANGAEA.186891
  47. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_074. https://doi.org/10.1594/PANGAEA.186892
  48. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_075. https://doi.org/10.1594/PANGAEA.186893
  49. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_076. https://doi.org/10.1594/PANGAEA.186894
  50. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_077. https://doi.org/10.1594/PANGAEA.186895
  51. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_078. https://doi.org/10.1594/PANGAEA.186896
  52. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_079. https://doi.org/10.1594/PANGAEA.186897
  53. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_080. https://doi.org/10.1594/PANGAEA.186898
  54. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_081. https://doi.org/10.1594/PANGAEA.186899
  55. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_083. https://doi.org/10.1594/PANGAEA.186900
  56. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_086. https://doi.org/10.1594/PANGAEA.186901
  57. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_089. https://doi.org/10.1594/PANGAEA.186902
  58. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_092. https://doi.org/10.1594/PANGAEA.186903
  59. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_095. https://doi.org/10.1594/PANGAEA.186904
  60. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_098. https://doi.org/10.1594/PANGAEA.186905
  61. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_101. https://doi.org/10.1594/PANGAEA.186906
  62. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_104. https://doi.org/10.1594/PANGAEA.186907
  63. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_107. https://doi.org/10.1594/PANGAEA.186908
  64. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_110. https://doi.org/10.1594/PANGAEA.186909
  65. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_113. https://doi.org/10.1594/PANGAEA.186910
  66. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_116. https://doi.org/10.1594/PANGAEA.186911
  67. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_119. https://doi.org/10.1594/PANGAEA.186912
  68. Le Borgne, R; Rodier, M (1997): Net zooplankton at station FLUPAC_123. https://doi.org/10.1594/PANGAEA.186913