Tan, Tjhing Lok; Thormann, Detlef (1981): Lead and cadmium in the Weser Estuary and the German Bight: Correlations between bacteria populations, heavy metals and organic carbon. PANGAEA, https://doi.org/10.1594/PANGAEA.743919, Supplement to: Tan, TL; Thormann, D (1981): Blei und Cadmium im Weser-Ästuar und der Deutschen Bucht: Beziehungen zwischen Bakterienpopulationen, Schwermetallen und organischem Kohlenstoff. Veröffentlichungen des Instituts für Meeresforschung Bremerhaven, 19, 1-20, hdl:10013/epic.19375.d001
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Organic carbon, lead and cadmium contents of 20 sediments were determined and compared with the colony counts of anaerobic heterotrophic, anaerobic nitrogen fixing, chitinoclastic and cellulolytic bacteria. Organic carbon content, which is dependent on the sediment type, was positively correlated with lead and cadmium as well as with colony counts of all 4 physiological groups of bacteria. Even the sediments with the highest concentrations of 251.7 ppm Pb and 3.1 ppm Cd showed no reduction in their colony counts.
From 2 different sediment sampIes with lead contents of 140 ppm and 21 ppm lead tolerance of the aerobic heterotrophic bacteria was investigated. However, no significant difference in lead tolerance of the 2 heterotrophic populations was found. Water from 6 stations was analysed for dissolved and particulate organic carbon, lead and cadmium. Dissolved lead concentrations were in the range of 0.2-0.5 µg/l and the particulate lead contents were between 0.05 and 4.3 µg/l. The concentrations of total lead for the stations off-shore were only one order of magnitude from the concentrations of the near-shore stations. The same phenomenon was observed for dissolved cadmium (0.02 - 0.25 µg/l) and particulate cadmium (0.003 - 0.15 µg/I) concentrations. Correlations between dissolved (1.6 - 10.8 mg/I) and particulate organic carbon (0.25 - 1.53 mg/I) with dissolved and particulate lead or cadmium were not found.
Median Latitude: 53.652765 * Median Longitude: 8.378567 * South-bound Latitude: 53.498060 * West-bound Longitude: 7.900780 * North-bound Latitude: 54.141510 * East-bound Longitude: 8.565000
Date/Time Start: 1975-07-03T12:00:00 * Date/Time End: 1976-01-19T12:00:00
VH_01_76_1 * Latitude: 53.501520 * Longitude: 8.506710 * Date/Time: 1976-01-19T12:00:00 * Elevation: -9.0 m * Location: North Sea German Bight * Campaign: VH0176 * Basis: Victor Hensen * Method/Device: van Veen Grab (VGRAB)
VH_01_76_10 (Buoy 61) * Latitude: 53.533020 * Longitude: 8.565000 * Date/Time: 1976-01-19T12:00:00 * Elevation: -12.0 m * Location: North Sea German Bight * Campaign: VH0176 * Basis: Victor Hensen * Method/Device: van Veen Grab (VGRAB)
Datasets listed in this publication series
- Tan, TL; Thormann, D (1981): (Tab. 1) Grain size analysis in surface sediment samples from the Weser Estuary and the German Bight. https://doi.org/10.1594/PANGAEA.743871
- Tan, TL; Thormann, D (1981): (Tab. 2) Concentration of organic carbon, lead, cadmium, and bacteria in surface sediment samples from the Weser Estuary and the German Bight. https://doi.org/10.1594/PANGAEA.743886
- Tan, TL; Thormann, D (1981): (Tab. 4) Concentration of lead in surface sediment samples from the Weser Estuary. https://doi.org/10.1594/PANGAEA.743890
- Tan, TL; Thormann, D (1981): (Tab. 5) Lead tolerance of aerobic heterotrophic bacteria at station VH_01_76_3. https://doi.org/10.1594/PANGAEA.743913
- Tan, TL; Thormann, D (1981): (Tab. 5) Lead tolerance of aerobic heterotrophic bacteria at station VH_01_76_5. https://doi.org/10.1594/PANGAEA.743914
- Tan, TL; Thormann, D (1981): (Tab. 6) Concentration of organic carbon, lead, and cadmium in surface water samples from the Weser Estuary and the German Bight. https://doi.org/10.1594/PANGAEA.743918