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Tan, Tjhing Lok; Joiris, Claude R; Glansdorff, Nicolas; Rüger, Hans-Jürgen (1999): Dominance of facultative and obligate oligotrophic bacteria in surface waters above Gunnerus and Astrid Ridge, Antarctic Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.746515, Supplement to: Tan, TL et al. (1999): Dominance of oligotrophic bacteria in surface waters above Gunnerus and Astrid Ridge, Antarctic Ocean. Archiv für Hydrobiologie Supplement, 54, 237-253

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Abstract:
Facultative and obligate oligotrophs have been enumerated in March/April 1990 by the MPN-method with 14C-protein hydrolysate as tracer substrate. Obligate (10-3360 cells/ml) and facultative (110-9000 cells/ml) oligotrophs revealed to be the dominant population above Gunnerus Ridge (65°30'-68°S; 31-35°E) at a depth of 25 m compared with eutrophic bacteria (5 to 260 CFU/ml). Above Astrid Ridge (65-68°S; 8-18°E), obligate (0-1100 cells/ml) and facultative oligotrophs (300-9000 cells/ml) were also abundant but not always dominant. Bacterial biomass above Gunnerus Ridge was only between 7.3 and 43.6% of particulate biomass, but biomass of bacteria above Astrid Ridge amounted from 56.9 to >100% of particulate biomass; an exception was station no. PS16/552 with only 22.2% of bacterial biomass. Ratio of bacterial biomass to particulate biomass was negatively correlated with maximal primary production, complementing the view that phytoplankton was the dominant population above Gunnerus Ridge, whereas bacteria predominated above Astrid Ridge. Eutrophic bacteria were also more abundant above Astrid Ridge, with 3 to 6380 CFU/ml. Total bacteria by acridine orange direct counts amounted from 1 x 10**4 to 34.2 x 10**4 cells/ml. Bacterial biomass above Gunnerus Ridge was 1.8 to 10.7, and above Astrid Ridge 5.7 to 13.6 mg C/m*3. Maximal primary production above Gunnerus Ridge was 4.5 to 11.0, and above Astrid Ridge 2.3 to 3.5 mg C/m**3/d.
Coverage:
Median Latitude: -66.192152 * Median Longitude: 25.869352 * South-bound Latitude: -67.735000 * West-bound Longitude: 8.890000 * North-bound Latitude: -64.956700 * East-bound Longitude: 37.460000
Date/Time Start: 1990-03-24T18:30:00 * Date/Time End: 1990-04-15T18:55:00
Event(s):
PS16/507 * Latitude: -66.186700 * Longitude: 35.308300 * Date/Time: 1990-03-24T18:30:00 * Elevation: -4149.0 m * Location: Cosmonauts Sea * Campaign: ANT-VIII/6 (PS16) * Basis: Polarstern * Method/Device: Water sample (WS)
PS16/509 * Latitude: -66.111700 * Longitude: 34.296700 * Date/Time: 1990-03-25T09:48:00 * Elevation: -2950.0 m * Location: Riiser-Larsen Sea * Campaign: ANT-VIII/6 (PS16) * Basis: Polarstern * Method/Device: Water sample (WS)
PS16/515 * Latitude: -66.090000 * Longitude: 33.700000 * Date/Time: 1990-03-26T06:32:00 * Elevation: -1132.0 m * Location: Riiser-Larsen Sea * Campaign: ANT-VIII/6 (PS16) * Basis: Polarstern * Method/Device: Water sample (WS)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
18 datasets

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Datasets listed in this publication series

  1. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 3. Numbers of facultative oligotrophic bacteria, obligate oligotrophic bacteria, and eutrophic bacteria, amounts of BOC, and POC, ratio of BOC to POC, and maximal primary production above Gunnerus and Astrid Ridge at 25 m water depth. https://doi.org/10.1594/PANGAEA.746503
  2. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 1. Positions of bacteriological stations, date and time of sampling, surface temperature, depth location of thermocline, and total water depth above Gunnerus and Astrid Ridge. https://doi.org/10.1594/PANGAEA.746449
  3. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 4. Number of positive test results and bacteria MPN-index at 25 depth during POLARSTERN cruise ANT-VIII/6. https://doi.org/10.1594/PANGAEA.746505
  4. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/507. https://doi.org/10.1594/PANGAEA.746450
  5. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/509. https://doi.org/10.1594/PANGAEA.746451
  6. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/515. https://doi.org/10.1594/PANGAEA.746452
  7. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/518. https://doi.org/10.1594/PANGAEA.746453
  8. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/526. https://doi.org/10.1594/PANGAEA.746464
  9. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/530. https://doi.org/10.1594/PANGAEA.746455
  10. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/534. https://doi.org/10.1594/PANGAEA.746456
  11. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/536. https://doi.org/10.1594/PANGAEA.746457
  12. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/540. https://doi.org/10.1594/PANGAEA.746458
  13. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/547. https://doi.org/10.1594/PANGAEA.746459
  14. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/549. https://doi.org/10.1594/PANGAEA.746460
  15. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/552. https://doi.org/10.1594/PANGAEA.746461
  16. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/554. https://doi.org/10.1594/PANGAEA.746462
  17. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 5. Assimilation and respiration of bacteria at station PS16/554. https://doi.org/10.1594/PANGAEA.746506
  18. Tan, TL; Joiris, CR; Glansdorff, N et al. (1999): Table 2. Colony counts of eutrophic bacteria, total acridine orange direct counts of bacteria, amounts of bacterial organic carbon and particulate organic carbon at station PS16/557. https://doi.org/10.1594/PANGAEA.746463