Sediment and water column parameters measured at Boknis Eck (SW Baltic Sea) on a seasonal basis from 2013-2014

The presence of surface methanogenesis, located within the sulfate-reducing zone (0-30 centimeters below seafloor, cmbsf), was investigated in sediments of the seasonally hypoxic Eckernförde Bay, southwestern Baltic Sea. Water column parameters like oxygen, temperature and salinity together with porewater geochemistry and benthic methanogenesis rates were determined in the sampling area 'Boknis Eck' quarterly from March 2013 to September 2014, to investigate the effect of seasonal environmental changes on the rate and distribution of surface methanogenesis and to estimate its potential contribution to benthic methane emissions. Water column parameters where determined via CTD (temperature, salinity, pressure), as well as gas chromatography (methane) and fluorometric methods (chlorophyll a). For porewater and sediment geochemistry various method were used including photometry (sulfide), ion chromatography (sulfate), N/C Analysis (DIC), Carbo-Elba element analysis (POC, C/N), gas chromatography (methane). Sediment net methanogenesis rates were determined via the methane increase (measured with gas chromatography) over time in sediment slurry batch incubations. Sediment hydrogenotrophic methanogenesis was measured by adding radiotracer (14C-bicarbonate) to sediment samples and measuring the production of 14C-methane (via scintillation counting) after a specific period of time. For further details (sample preparation and analysis) see the related publication (Maltby et al., 2017, Biogeosciences Discussions)

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Cite this as

Maltby, Johanna, Steinle, Lea, Löscher, Carolin R, Bange, Hermann Werner, Fischer, Martin A, Schmidt, Mark, Treude, Tina (2017). Dataset: Sediment and water column parameters measured at Boknis Eck (SW Baltic Sea) on a seasonal basis from 2013-2014. https://doi.org/10.1594/PANGAEA.873185

DOI retrieved: 2017

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-NC-3.0
Source https://doi.org/10.1594/PANGAEA.873185
Author Maltby, Johanna
Given Name Johanna
Family Name Maltby
More Authors
Steinle, Lea
Löscher, Carolin R
Bange, Hermann Werner
Fischer, Martin A
Schmidt, Mark
Treude, Tina
Source Creation 2017
Publication Year 2017
Resource Type application/zip - filename: Maltby-etal_2017
Subject Areas
Name: Ecology

Name: Lithosphere

Related Identifiers
Title: Microbial methanogenesis in the sulfate-reducing zone of sediments in the Eckernförde Bay, SW Baltic Sea
Identifier: https://doi.org/10.5194/bg-15-137-2018
Type: DOI
Relation: IsSupplementTo
Year: 2018
Source: Biogeosciences
Authors: Maltby Johanna , Steinle Lea , Löscher Carolin R , Bange Hermann Werner , Fischer Martin A , Schmidt Mark , Treude Tina .