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Van Wambeke, France; Goutx, Madeleine; Striby, L; Sempéré, Richard; Vidussi, Francesca (2001): Abundance of bacteria, cyanobacteria and nanoflagellates at sime series station DYNAPROC. PANGAEA, https://doi.org/10.1594/PANGAEA.738710, Supplement to: Van Wambeke, F et al. (2001): Bacterial dynamics during the transition from spring bloom to oligotrophy in the northwestern mediterranean sea: Relationships with particulate detritus and dissolved organic matter. Marine Ecology Progress Series, 212, 89-105, https://doi.org/10.3354/meps212089

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Abstract:
The variability in microbial communities (abundance and biomass), bacterial production and ectoaminopeptidase activity, particulate and dissolved organic carbon (POC, DOC), and particulate and dissolved lipids was examined in spring 1995 in the northwestern Mediterranean, where a transition from the end of a bloom to pre-oligotrophic conditions was observed. Four time series of 36 h each and 4 h sampling intervals were performed at 5 m and at the chlorophyll maximum (30 m) between 11 and 31 May. Simultaneous measurements of pigments, abundance of hetero- and autotrophic flagellates, bacteria and POC enabled the estimation of living POC (defined as autotrophic-C plus heterotrophic-C biomass), and thus the detrital organic carbon. During the first 2 time series (11 to 15 May), the bacterial-C biomass was higher than the autotrophic-C biomass at 5 m (ratio 1.4 and 1.7), whereas the opposite trend was observed in the chlorophyll peak (ratio 0.7 for the first cycle). However, at the end of May, autotrophic-C biomass was equivalent to bacterial-C biomass at both depths studied. The detrital pool remained a more or less constant fraction of the POC (52, 53 and 47% on 11-12 May, 14-15 May and 30-31 May) at the chlorophyll peak, whereas it decreased significantly with time (62 to 53%) at 5 m. Relationships between bacterial activities and evolution of available resources were not systematically evidenced from our 36 h diel cycle data. Nevertheless, at the monthly scale, comparison of bacterial carbon demand (BCD) to potential carbon resources (detrital POC and DOC) showed that bacteria fed differently on the various pools. From ectoaminopeptidase turnover rates and detrital POC, the potential hydrolysis rate of detritus was calculated. Depending on the choice of conversion factors for bacterial production and estimates of hydrolysis turnover rates, it was shown that bacterial hydrolysis of detritus could be one of the DOC accumulation sources. We observed that the percentage of BCD supplied by detrital POC hydrolysis increased in the surface and decreased in the chlorophyll peak. An index of lipid degradation in POC, the lipolysis index, increased during the month at 5 m, also indicating a higher hydrolysis of POC. The opposite trend was observed in the chlorophyll maximum layer. The selective decrease in dissolved lipids in DOC in the chlorophyll maximum layer, particularly free fatty acids, also suggests that bacteria utilized increased fractions of carbon sources from the DOC. We concluded that partitioning between DOC and detritus as resources for bacteria can change during the rapid transition period from mesotrophy to oligotrophy in the northwestern Mediterranean.
Coverage:
Median Latitude: 43.251790 * Median Longitude: 7.517717 * South-bound Latitude: 43.247230 * West-bound Longitude: 7.512090 * North-bound Latitude: 43.254600 * East-bound Longitude: 7.520310
Date/Time Start: 1995-05-10T18:02:00 * Date/Time End: 1995-05-31T21:58:00
Event(s):
DYNAPROC_105 * Latitude: 43.253250 * Longitude: 7.517380 * Date/Time: 1995-05-10T18:02:00 * Campaign: DYNAPROC * Basis: Le Suroît * Method/Device: CTD/Rosette (CTD-RO)
DYNAPROC_107 * Latitude: 43.251900 * Longitude: 7.516580 * Date/Time: 1995-05-11T10:00:00 * Campaign: DYNAPROC * Basis: Le Suroît * Method/Device: CTD/Rosette (CTD-RO)
DYNAPROC_108 * Latitude: 43.252760 * Longitude: 7.516320 * Date/Time: 1995-05-11T14:03:00 * Campaign: DYNAPROC * Basis: Le Suroît * Method/Device: CTD/Rosette (CTD-RO)
Size:
43 datasets

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Datasets listed in this publication series

  1. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_105. https://doi.org/10.1594/PANGAEA.184887
  2. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_107. https://doi.org/10.1594/PANGAEA.184888
  3. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_108. https://doi.org/10.1594/PANGAEA.184889
  4. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_109. https://doi.org/10.1594/PANGAEA.184890
  5. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_110. https://doi.org/10.1594/PANGAEA.184891
  6. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_112. https://doi.org/10.1594/PANGAEA.184892
  7. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_113. https://doi.org/10.1594/PANGAEA.184893
  8. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_116. https://doi.org/10.1594/PANGAEA.184894
  9. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_117. https://doi.org/10.1594/PANGAEA.184895
  10. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_119. https://doi.org/10.1594/PANGAEA.184896
  11. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_120. https://doi.org/10.1594/PANGAEA.184897
  12. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_124. https://doi.org/10.1594/PANGAEA.184898
  13. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_128. https://doi.org/10.1594/PANGAEA.184899
  14. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_129. https://doi.org/10.1594/PANGAEA.184900
  15. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_131. https://doi.org/10.1594/PANGAEA.184901
  16. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_132. https://doi.org/10.1594/PANGAEA.184902
  17. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_135. https://doi.org/10.1594/PANGAEA.184904
  18. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_136. https://doi.org/10.1594/PANGAEA.184905
  19. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_137. https://doi.org/10.1594/PANGAEA.184906
  20. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_139. https://doi.org/10.1594/PANGAEA.184907
  21. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_140. https://doi.org/10.1594/PANGAEA.184908
  22. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_141. https://doi.org/10.1594/PANGAEA.184909
  23. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_248. https://doi.org/10.1594/PANGAEA.184910
  24. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_249. https://doi.org/10.1594/PANGAEA.184911
  25. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_251. https://doi.org/10.1594/PANGAEA.184912
  26. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_252. https://doi.org/10.1594/PANGAEA.184913
  27. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_254. https://doi.org/10.1594/PANGAEA.184914
  28. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_255. https://doi.org/10.1594/PANGAEA.184915
  29. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_257. https://doi.org/10.1594/PANGAEA.184916
  30. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_258. https://doi.org/10.1594/PANGAEA.184917
  31. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_259. https://doi.org/10.1594/PANGAEA.184918
  32. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_260. https://doi.org/10.1594/PANGAEA.184919
  33. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_266. https://doi.org/10.1594/PANGAEA.184920
  34. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_269. https://doi.org/10.1594/PANGAEA.184921
  35. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_270. https://doi.org/10.1594/PANGAEA.184922
  36. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_272. https://doi.org/10.1594/PANGAEA.184923
  37. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_273. https://doi.org/10.1594/PANGAEA.184924
  38. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_275. https://doi.org/10.1594/PANGAEA.184925
  39. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_276. https://doi.org/10.1594/PANGAEA.184926
  40. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_278. https://doi.org/10.1594/PANGAEA.184927
  41. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_279. https://doi.org/10.1594/PANGAEA.184928
  42. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_281. https://doi.org/10.1594/PANGAEA.184929
  43. Van Wambeke, F; Goutx, M; Striby, L et al. (2001): Abundance of bacteria, cyanobacteria, nanoflagellates; bacterial production; organic carbon at station DYNAPROC_283. https://doi.org/10.1594/PANGAEA.184930