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  • ANT-XXIII/8; CAML; Census of Antarctic Marine Life; Center for Marine Environmental Sciences; GC; Gravity corer; MARUM; MUC; MultiCorer; Polarstern; PS69; PS69/702-6; PS69/706-4; PS69/709-3; PS69/711-4; PS69/711-5; Weddell Sea, Larsen-B  (1)
  • Acidobacteria, relative 16S rRNA clone frequency; Actinobacteria, relative 16S rRNA clone frequency; alpha-Proteobacteria, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-2-a-2b, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-2c, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-3, relative 16S rRNA clone frequency; ANT06-05 archaea, relative 16S rRNA clone frequency; Bacteria, unaffiliated, relative 16S rRNA clone frequency; Bacteroidetes, relative 16S rRNA clone frequency; beta-Proteobacteria, relative 16S rRNA clone frequency; CCA47 archaea, relative 16S rRNA clone frequency; Chloroflexi, relative 16S rRNA clone frequency; Deep Sea Euryarchaeal Group, relative 16S rRNA clone frequency; Delta-Proteobacteria, relative 16S rRNA clone frequency; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East of New Zealand, Omakere Ridge; East of New Zealand, Wairarapa Takahae; Epsilon-Proteobacteria, relative 16S rRNA clone frequency; Event label; Fibrobacteres, relative 16S rRNA clone frequency; Gammaproteobacteria, relative 16S rRNA clone frequency; Habitat; Marine Benthic Group A, relative 16S rRNA clone frequency; Marine Benthic Group B, relative 16S rRNA clone frequency; Marine Benthic Group D, relative 16S rRNA clone frequency; Marine Benthic Group E, relative 16S rRNA clone frequency; Marine group I, relative 16S rRNA clone frequency; Methanimicrococcus, relative 16S rRNA clone frequency; Methanococcoides, relative 16S rRNA clone frequency; Methanosalsum, relative 16S rRNA clone frequency; Miscellaneous Crenarchaeotic Group, relative 16S rRNA clone frequency; Multicorer with television; NEW VENTS; Nitrospira, relative 16S rRNA clone frequency; Number of clones; PCR using ARCH20Fb (Massana et al., 1997) and Uni1292R (Lane et al., 1985) prime; PCR using GM3/GM4 primer (Muyzer et al., 1993); Planctomycetes, relative 16S rRNA clone frequency; SO191/2; SO191/2_045; SO191/2_078; SO191/3; SO191/3_309-2; SO191/3_315; Sonne; Thermoplasmatales, relative 16S rRNA clone frequency; TVMUC  (1)
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Years
  • 1
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    Unknown
    Anaerobic oxidation of methane and sulphate reduction rates, hydrocarbons, sulphate and sulphide concentrations of sediment cores from the Larsen B embayment at the eastern site of the Antarctic Peninsula
    PANGAEA
    In:  Supplement to: Niemann, Helge; Fischer, David; Graffe, Dorothea; Knittel, Katrin; Montiel, Américo; Heilmayer, Olaf; Nöthen, Kerstin; Pape, Thomas; Kasten, Sabine; Bohrmann, Gerhard; Boetius, Antje; Gutt, Julian (2009): Biogeochemistry of a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica. Biogeosciences, 6, 2383-2395, https://doi.org/10.5194/bg-6-2383-2009
    Details
    Publication Date: 2023-05-12
    Description: First videographic indication of an Antarctic cold seep ecosystem was recently obtained from the collapsed Larsen B ice shelf, western Weddell Sea (Domack et al., 2005). Within the framework of the R/V Polarstern expedition ANTXXIII-8, we revisited this area for geochemical, microbiological and further videographical examinations. During two dives with ROV Cherokee (MARUM, Bremen), several bivalve shell agglomerations of the seep-associated, chemosynthetic clam Calyptogena sp. were found in the trough of the Crane and Evans glacier. The absence of living clam specimens indicates that the flux of sulphide and hence the seepage activity is diminished at present. This impression was further substantiated by our geochemical observations. Concentrations of thermogenic methane were moderately elevated with 2 µM in surface sediments of a clam patch, increasing up to 9 µM at a sediment depth of about 1 m in the bottom sections of the sediment cores. This correlated with a moderate decrease in sulphate from about 28 mM at the surface down to 23.4 mM, an increase in sulphide to up to 1.43 mM and elevated rates of the anaerobic oxidation of methane (AOM) of up to 600 pmol cm**-3 d**-1 at about 1 m below the seafloor. Molecular analyses indicate that methanotrophic archaea related to ANME-3 are the most likely candidates mediating AOM in sediments of the Larsen B seep.
    Keywords: ANT-XXIII/8; CAML; Census of Antarctic Marine Life; Center for Marine Environmental Sciences; GC; Gravity corer; MARUM; MUC; MultiCorer; Polarstern; PS69; PS69/702-6; PS69/706-4; PS69/709-3; PS69/711-4; PS69/711-5; Weddell Sea, Larsen-B
    Type: Dataset
    Format: application/zip, 10 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Archaeal and bacterial diversity at different sites as determined by 16S rRNA gene analysis (2013)
    PANGAEA
    Details
    Publication Date: 2024-04-18
    Keywords: Acidobacteria, relative 16S rRNA clone frequency; Actinobacteria, relative 16S rRNA clone frequency; alpha-Proteobacteria, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-2-a-2b, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-2c, relative 16S rRNA clone frequency; Anaerobic methanotrophic archaea-3, relative 16S rRNA clone frequency; ANT06-05 archaea, relative 16S rRNA clone frequency; Bacteria, unaffiliated, relative 16S rRNA clone frequency; Bacteroidetes, relative 16S rRNA clone frequency; beta-Proteobacteria, relative 16S rRNA clone frequency; CCA47 archaea, relative 16S rRNA clone frequency; Chloroflexi, relative 16S rRNA clone frequency; Deep Sea Euryarchaeal Group, relative 16S rRNA clone frequency; Delta-Proteobacteria, relative 16S rRNA clone frequency; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East of New Zealand, Omakere Ridge; East of New Zealand, Wairarapa Takahae; Epsilon-Proteobacteria, relative 16S rRNA clone frequency; Event label; Fibrobacteres, relative 16S rRNA clone frequency; Gammaproteobacteria, relative 16S rRNA clone frequency; Habitat; Marine Benthic Group A, relative 16S rRNA clone frequency; Marine Benthic Group B, relative 16S rRNA clone frequency; Marine Benthic Group D, relative 16S rRNA clone frequency; Marine Benthic Group E, relative 16S rRNA clone frequency; Marine group I, relative 16S rRNA clone frequency; Methanimicrococcus, relative 16S rRNA clone frequency; Methanococcoides, relative 16S rRNA clone frequency; Methanosalsum, relative 16S rRNA clone frequency; Miscellaneous Crenarchaeotic Group, relative 16S rRNA clone frequency; Multicorer with television; NEW VENTS; Nitrospira, relative 16S rRNA clone frequency; Number of clones; PCR using ARCH20Fb (Massana et al., 1997) and Uni1292R (Lane et al., 1985) prime; PCR using GM3/GM4 primer (Muyzer et al., 1993); Planctomycetes, relative 16S rRNA clone frequency; SO191/2; SO191/2_045; SO191/2_078; SO191/3; SO191/3_309-2; SO191/3_315; Sonne; Thermoplasmatales, relative 16S rRNA clone frequency; TVMUC
    Type: Dataset
    Format: text/tab-separated-values, 93 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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