Van Wambeke, France; Goutx, Madeleine; Striby, L; Sempéré, Richard; Vidussi, Francesca (2001): Abundance of bacteria, cyanobacteria and nanoflagellates at sime series station DYNAPROC [dataset publication series]. 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.
Project(s):
Funding:
Sixth Framework Programme (FP6), grant/award no. 36949: Southern European Seas: Assessing and Modelling Ecosystem Changes
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)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
43 datasets
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Datasets listed in this publication series
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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