Benthic biogeochemistry data from RV HEINCKE cruise HE582 to the German Bight, North Sea in late summer 2021
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| Autores principales: | , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2026
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| _version_ | 1867171057520082944 |
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| author | Lange, Fabian Ahmerkamp, Soeren Akeerath Mundanatt, Aman Lavik, Gaute Ferdelman, Timothy G Kuypers, Marcel MM |
| author_facet | Lange, Fabian Ahmerkamp, Soeren Akeerath Mundanatt, Aman Lavik, Gaute Ferdelman, Timothy G Kuypers, Marcel MM |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset contains data from the RV Heincke cruise HE582 to the German Bight of the North Sea in late summer 2021. The aim of the research was to investigate the source of sedimentary glycan concentrations in subtidal sandy sediments. Glycans represent a substantial fraction of extracellular polymeric substances and may affect flow dynamics in marine sandy sediments. The origin and concentration of glycans in sands remain understudied until today. To gain insights into oxygen supply and glycan concentrations in sandy sediment, we conducted in situ measurements and sampled sediment via a van Veen grab for ex situ investigations. Oxygen penetration depths were determined by a benthic lander, which was deployed for ca. 24h at each station. Chlorophyll a concentrations as an indicator for potentially photosynthetically active sedimentary biomass were derived via extraction with 90% acetone against Sigma Aldrich standards. Glycan concentrations served as indicator for extracellular polymeric substances and were quantified against a glucose standard curve via a phenol sulfuric acid assay after prior sequential glycan extraction (MilliQ, EDTA, NaOH). The final glycan concentrations are referred to per volume of porespace, and therefore given in mmol/l porewater. To investigate if benthic primary producers could be responsible for the extracted sedimentary glycan concentrations, we conducted stable isotope incubations. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_992026 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Benthic biogeochemistry data from RV HEINCKE cruise HE582 to the German Bight, North Sea in late summer 2021 Lange, Fabian Ahmerkamp, Soeren Akeerath Mundanatt, Aman Lavik, Gaute Ferdelman, Timothy G Kuypers, Marcel MM benthic carbon cycle; Chlorophyll a, per unit sediment mass; Date/Time of event; Elevation of event; Event label; Glycan concentration, anionic; Glycan concentration, total; Glycan concentration, water insoluble; Glycan concentration, water soluble; Glycans; Grab; GRAB; HE582; HE582_1-1; HE582_2-1; HE582_3-5-3; HE582_4-4-2; HE582_5-1-5; HE582_6-1; HE582_7-2; Heincke; Latitude of event; Longitude of event; North Sea; OPTODE; organic carbon composition; Oxygen optode; Oxygen penetration depth; Primary production of carbon; Sediment; Sequential glycan extraction and phenol sulfuric acid assay; Stable isotope analysis; Station label; UV-vis spectrometer, Thermo Scientific, Genesys 10S This dataset contains data from the RV Heincke cruise HE582 to the German Bight of the North Sea in late summer 2021. The aim of the research was to investigate the source of sedimentary glycan concentrations in subtidal sandy sediments. Glycans represent a substantial fraction of extracellular polymeric substances and may affect flow dynamics in marine sandy sediments. The origin and concentration of glycans in sands remain understudied until today. To gain insights into oxygen supply and glycan concentrations in sandy sediment, we conducted in situ measurements and sampled sediment via a van Veen grab for ex situ investigations. Oxygen penetration depths were determined by a benthic lander, which was deployed for ca. 24h at each station. Chlorophyll a concentrations as an indicator for potentially photosynthetically active sedimentary biomass were derived via extraction with 90% acetone against Sigma Aldrich standards. Glycan concentrations served as indicator for extracellular polymeric substances and were quantified against a glucose standard curve via a phenol sulfuric acid assay after prior sequential glycan extraction (MilliQ, EDTA, NaOH). The final glycan concentrations are referred to per volume of porespace, and therefore given in mmol/l porewater. To investigate if benthic primary producers could be responsible for the extracted sedimentary glycan concentrations, we conducted stable isotope incubations. |
| title | Benthic biogeochemistry data from RV HEINCKE cruise HE582 to the German Bight, North Sea in late summer 2021 |
| topic | benthic carbon cycle; Chlorophyll a, per unit sediment mass; Date/Time of event; Elevation of event; Event label; Glycan concentration, anionic; Glycan concentration, total; Glycan concentration, water insoluble; Glycan concentration, water soluble; Glycans; Grab; GRAB; HE582; HE582_1-1; HE582_2-1; HE582_3-5-3; HE582_4-4-2; HE582_5-1-5; HE582_6-1; HE582_7-2; Heincke; Latitude of event; Longitude of event; North Sea; OPTODE; organic carbon composition; Oxygen optode; Oxygen penetration depth; Primary production of carbon; Sediment; Sequential glycan extraction and phenol sulfuric acid assay; Stable isotope analysis; Station label; UV-vis spectrometer, Thermo Scientific, Genesys 10S |
| url | https://doi.org/10.1594/PANGAEA.992026 |