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PANGAEA tech-keyword 'deNBIFISH' (10 data sets)

Mostrando recursos 1 - 20 de 55

  1. Composition of bacterioplankton in the North Atlantic subtropical gyre

    Gomez-Pereira, Paola R; Hartmann, Manuela; Grob, C; Tarran, Glen A; Martin, Adrian Peter; Fuchs, Bernhard M; Scanlan, David J; Zubkov, Mikhail V
    Subtropical oceanic gyres are the most extensive biomes on Earth where SAR11 and Prochlorococcus bacterioplankton numerically dominate the surface waters depleted in inorganic macronutrients as well as in dissolved organic matter. In such nutrient poor conditions bacterioplankton could become photoheterotrophic. We assessed the photoheterotrophy of the key microbial taxa in the North Atlantic oligotrophic gyre and adjacent regions. The experimental work was performed on board the Royal Research Ship James Cook (cruise no. JC53, October-November 2010) as part of the Atlantic Meridional Transect programme, and on board the Royal Research Ship Discovery (cruise no. D369, August-September 2011). At each station,...

  2. Composition of bacterioplankton in the North Atlantic subtropical gyre

    Gomez-Pereira, Paola R; Hartmann, Manuela; Grob, C; Tarran, Glen A; Martin, Adrian Peter; Fuchs, Bernhard M; Scanlan, David J; Zubkov, Mikhail V
    Subtropical oceanic gyres are the most extensive biomes on Earth where SAR11 and Prochlorococcus bacterioplankton numerically dominate the surface waters depleted in inorganic macronutrients as well as in dissolved organic matter. In such nutrient poor conditions bacterioplankton could become photoheterotrophic. We assessed the photoheterotrophy of the key microbial taxa in the North Atlantic oligotrophic gyre and adjacent regions. The experimental work was performed on board the Royal Research Ship James Cook (cruise no. JC53, October-November 2010) as part of the Atlantic Meridional Transect programme, and on board the Royal Research Ship Discovery (cruise no. D369, August-September 2011). At each station,...

  3. Composition of bacterioplankton in the North Atlantic subtropical gyre

    Gomez-Pereira, Paola R; Hartmann, Manuela; Grob, C; Tarran, Glen A; Martin, Adrian Peter; Fuchs, Bernhard M; Scanlan, David J; Zubkov, Mikhail V
    Subtropical oceanic gyres are the most extensive biomes on Earth where SAR11 and Prochlorococcus bacterioplankton numerically dominate the surface waters depleted in inorganic macronutrients as well as in dissolved organic matter. In such nutrient poor conditions bacterioplankton could become photoheterotrophic. We assessed the photoheterotrophy of the key microbial taxa in the North Atlantic oligotrophic gyre and adjacent regions. The experimental work was performed on board the Royal Research Ship James Cook (cruise no. JC53, October-November 2010) as part of the Atlantic Meridional Transect programme, and on board the Royal Research Ship Discovery (cruise no. D369, August-September 2011). At each station,...

  4. Biomarker concentrations and isotopic signatures in sediment of Gullfaks and Tommeliten methane seeps in the Northern North Sea

    Wegener, Gunter; Shovitri, M; Knittel, Katrin; Niemann, H; Hovland, Martin; Boetius, Antje

  5. Biomarker concentrations and isotopic signatures in sediment of Gullfaks and Tommeliten methane seeps in the Northern North Sea

    Wegener, Gunter; Shovitri, M; Knittel, Katrin; Niemann, H; Hovland, Martin; Boetius, Antje

  6. Microbial community, biomarker concentrations and their isotopic signature in sediment of Gullfaks and Tommeliten methane seeps in the Northern North Sea

    Wegener, Gunter; Shovitri, M; Knittel, Katrin; Niemann, H; Hovland, Martin; Boetius, Antje
    Gullfaks is one of the four major Norwegian oil and gas fields, located in the northeastern edge of the North Sea Plateau. Tommeliten lies in the greater Ekofisk area in the central North Sea. During the cruises HE 208 and AL 267 several seep locations of the North Sea were visited. At the Heincke seep at Gullfaks, sediments were sampled in May 2004 (HE 208) using a video-guided multiple corer system (MUC; Octopus, Kiel). The samples were recovered from an area densely covered with bacterial mats where gas ebullition was observed. The coarse sands limited MUC penetration depth to maximal...

  7. Microbial community, biomarker concentrations and their isotopic signature in sediment of Gullfaks and Tommeliten methane seeps in the Northern North Sea

    Wegener, Gunter; Shovitri, M; Knittel, Katrin; Niemann, H; Hovland, Martin; Boetius, Antje
    Gullfaks is one of the four major Norwegian oil and gas fields, located in the northeastern edge of the North Sea Plateau. Tommeliten lies in the greater Ekofisk area in the central North Sea. During the cruises HE 208 and AL 267 several seep locations of the North Sea were visited. At the Heincke seep at Gullfaks, sediments were sampled in May 2004 (HE 208) using a video-guided multiple corer system (MUC; Octopus, Kiel). The samples were recovered from an area densely covered with bacterial mats where gas ebullition was observed. The coarse sands limited MUC penetration depth to maximal...

  8. Chemical analysis and Microbial community composition of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf
    The Lagoon of Venice is a large water basin that exchanges water with the Northern Adriatic Sea through three large inlets. We examined two adjacent sites within the Southern Basin and at the Chioggia inlet in autumn 2007 and summer 2008. A pilot study in June 2007 on a surface water sample from Chioggia with a rather high salinity of 36.9 PSU had revealed a conspicuous bloom of CF319a-positive cells likely affiliated with the Cytophaga /Flavobacteria cluster of Bacteroidetes. These flavobacterial abundances were one to two orders of magnitude higher than in other marine surface waters. DAPI-stained cells were identified...

  9. Chemical analysis and Microbial community composition of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf
    The Lagoon of Venice is a large water basin that exchanges water with the Northern Adriatic Sea through three large inlets. We examined two adjacent sites within the Southern Basin and at the Chioggia inlet in autumn 2007 and summer 2008. A pilot study in June 2007 on a surface water sample from Chioggia with a rather high salinity of 36.9 PSU had revealed a conspicuous bloom of CF319a-positive cells likely affiliated with the Cytophaga /Flavobacteria cluster of Bacteroidetes. These flavobacterial abundances were one to two orders of magnitude higher than in other marine surface waters. DAPI-stained cells were identified...

  10. Chemical analysis of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf

  11. Chemical analysis of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf

  12. Bacterioplankton groups of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf

  13. Bacterioplankton groups of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf

  14. Bacterioplankton groups of surface water samples from the Southern Lagoon of Venice

    Simonato, Francesca; Gomez-Pereira, Paola R; Fuchs, Bernhard M; Amann, Rudolf

  15. Microbial community composition in fresh water at different stations

    Glöckner, Frank Oliver; Fuchs, Bernhard M; Amann, Rudolf I
    Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes was used to investigate the phylogenetic composition of bacterioplankton communities in several freshwater and marine samples. An average of about 50% of the cells were detected by probes for the domains Bacteria and Archaea. Cells were concentrated from water samples (1 to 100 ml) on white polycarbonate filters (diameter, 47 mm; pore size, 0.2 mm; type GTTP 4700 [Millipore, Eschborn, Germany]) by applying a vacuum of <25 kPa. They were subsequently fixed by covering the filter with 3 ml of a freshly prepared, phosphate-buffered saline (pH 7.2)-4% paraformaldehyde (Sigma, Deisenhofen, Germany)...

  16. Microbial community composition in fresh water at different stations

    Glöckner, Frank Oliver; Fuchs, Bernhard M; Amann, Rudolf I
    Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes was used to investigate the phylogenetic composition of bacterioplankton communities in several freshwater and marine samples. An average of about 50% of the cells were detected by probes for the domains Bacteria and Archaea. Cells were concentrated from water samples (1 to 100 ml) on white polycarbonate filters (diameter, 47 mm; pore size, 0.2 mm; type GTTP 4700 [Millipore, Eschborn, Germany]) by applying a vacuum of <25 kPa. They were subsequently fixed by covering the filter with 3 ml of a freshly prepared, phosphate-buffered saline (pH 7.2)-4% paraformaldehyde (Sigma, Deisenhofen, Germany)...

  17. Microbial community composition in fresh water at different stations

    Glöckner, Frank Oliver; Fuchs, Bernhard M; Amann, Rudolf I
    Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes was used to investigate the phylogenetic composition of bacterioplankton communities in several freshwater and marine samples. An average of about 50% of the cells were detected by probes for the domains Bacteria and Archaea. Cells were concentrated from water samples (1 to 100 ml) on white polycarbonate filters (diameter, 47 mm; pore size, 0.2 mm; type GTTP 4700 [Millipore, Eschborn, Germany]) by applying a vacuum of <25 kPa. They were subsequently fixed by covering the filter with 3 ml of a freshly prepared, phosphate-buffered saline (pH 7.2)-4% paraformaldehyde (Sigma, Deisenhofen, Germany)...

  18. Anaerobic methanotrophic archaea-2 and Desulfosarcina/Desulfococcus group in sediments at different stations

    Schreiber, L; Holler, L; Knittel, Katrin; Meyerdierks, Anke; Amann, Rudolf
    The anaerobic oxidation of methane (AOM) with sulfate as terminal electron acceptor is mediated by consortia of methanotrophic archaea (ANME) and sulfate-reducing bacteria (SRB). In sediment samples from Hydrate Ridge, the Isis Mud Volcano and the Gulf of Mexico, DSS cells accounted for 3-6% of all DAPI-stained single cells. Out of these, 8-17% were labelled with probe SEEP1a-1441. This translated into relative abundances of single SEEP-SRB1a cells of 0.3% to 0.7%. Contrastingly, in a sediment sample from the Gullfaks oil field, DSS cells accounted for 18% and SEEP-SRB1a for 9% of all single cells. This sediment sample also featured an...

  19. Anaerobic methanotrophic archaea-2 and Desulfosarcina/Desulfococcus group in sediments at different stations

    Schreiber, L; Holler, L; Knittel, Katrin; Meyerdierks, Anke; Amann, Rudolf
    The anaerobic oxidation of methane (AOM) with sulfate as terminal electron acceptor is mediated by consortia of methanotrophic archaea (ANME) and sulfate-reducing bacteria (SRB). In sediment samples from Hydrate Ridge, the Isis Mud Volcano and the Gulf of Mexico, DSS cells accounted for 3-6% of all DAPI-stained single cells. Out of these, 8-17% were labelled with probe SEEP1a-1441. This translated into relative abundances of single SEEP-SRB1a cells of 0.3% to 0.7%. Contrastingly, in a sediment sample from the Gullfaks oil field, DSS cells accounted for 18% and SEEP-SRB1a for 9% of all single cells. This sediment sample also featured an...

  20. Anaerobic methanotrophic archaea-2 and Desulfosarcina/Desulfococcus group in sediments at different stations

    Schreiber, L; Holler, L; Knittel, Katrin; Meyerdierks, Anke; Amann, Rudolf
    The anaerobic oxidation of methane (AOM) with sulfate as terminal electron acceptor is mediated by consortia of methanotrophic archaea (ANME) and sulfate-reducing bacteria (SRB). In sediment samples from Hydrate Ridge, the Isis Mud Volcano and the Gulf of Mexico, DSS cells accounted for 3-6% of all DAPI-stained single cells. Out of these, 8-17% were labelled with probe SEEP1a-1441. This translated into relative abundances of single SEEP-SRB1a cells of 0.3% to 0.7%. Contrastingly, in a sediment sample from the Gullfaks oil field, DSS cells accounted for 18% and SEEP-SRB1a for 9% of all single cells. This sediment sample also featured an...

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