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  • 1
    Electronic Resource
    Electronic Resource
    Variability in the origin of carbon substrates for bacterial communities in mangrove sediments (2004)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology ecology 49 (2004), S. 0 
    Details
    ISSN: 1574-6941
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Organic carbon in mangrove sediments originates from both local sources (mangroves, microphytobenthos) and tidal inputs (e.g. phytoplankton, seagrass-derived material). The relative inputs of these sources may vary strongly, both within and between different mangrove sites. We combined elemental (TOC/TN) and bulk δ13C analysis on sediment cores from various mangrove sites with δ13C data of bacteria-specific phospholipid fatty acids (PLFA) in order to identify the dominant carbon substrates used by in situ bacterial communities. δ13C values of each of these markers showed a range of 10% or more across the different sites and sampling depths, but generally followed the δ13C trend observed in bulk organic carbon. Several sediment cores show a strong vertical gradient in PLFA δ13C, suggesting a selectivity for algal-derived carbon in the surface layers. Our data demonstrate that the origin of bacterial carbon substrates varies widely across different mangrove sites, and imply that data on mineralization of organic matter cannot be directly incorporated in ecosystem carbon budgets without an estimation of the contribution of various sources.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/j.femsec.2004.03.004
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Lipid biomarker and bulk organic matter concentrations and carbon and hydrogen isotope data from sediment cores GeoB7805-1 and GeoB7807-2 (2020)
    PANGAEA
    Details
    Publication Date: 2023-07-20
    Description: The data set contains lipid biomarker and bulk organic matter data from two sediment cores in the Shaban Deep, in the northern Red Sea. One core is deposited in the hypersaline brine (GeoB7805-1 2) and the other core (GeoB7807-2) is deposited outside the brine. The data set compares the lipid biomarker signals in the two deposition settings. For both cores the data set contains total organic carbon data, total nitrogen data, bulk organic matter carbon and hydrogen isotope data, long-chain n-alkane concentrations, alkenone concentrations, long- and short-chain fatty acid concentrations, long-chain n-alkane and long-chain fatty acid average chain length and carbon preference index data, UK37 data, stable carbon and hydrogen isotope data for long-chain n-alkanes, alkenones, and long- and short chain fatty acids.
    Keywords: Alkenones; Center for Marine Environmental Sciences; fatty acids; lipid biomarkers; marine organic matter degradation; MARUM; n-alkanes; particulate organic matter; Red Sea; Shaban Deep; stable carbon isotopes δ13C; stable hydrogen isotopes δ2H
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 3
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    Radiocarbon dating of sediment cores GeoB7805-1 and GeoB7807-2 (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: 133; Age, calibrated; Age, dated; Age, dated material; Age, error; Age, uncalibrated; Alkenones; Calendar age; Calendar age, standard deviation; Center for Marine Environmental Sciences; DEPTH, sediment/rock; Event label; fatty acids; GeoB7805-1; GeoB7807-2; Laboratory code/label; lipid biomarkers; M52/3; marine organic matter degradation; MARUM; Meteor (1986); MUC; MultiCorer; n-alkanes; Northern Red Sea, Shaban Deep Area; particulate organic matter; Red Sea; Shaban Deep; stable carbon isotopes δ13C; stable hydrogen isotopes δ2H
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
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  • 4
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    A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v.1) (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-27
    Description: This global database (CoastDOM v.1) contains both previously published and unpublished measurements of Dissolved organic carbon (DOC), nitrogen (DON) and phosphorus (DOP) in coastal waters. The dataset also contains hydrographic data such as temperature and salinity and, to the extent possible, other biogeochemical variables (e.g., Chlorophyll-a, inorganic nutrients) and the inorganic carbon system (e.g., dissolved inorganic carbon and total alkalinity). The data included were collected from 1978 to 2022 and consist of 62339 data points for DOC, 20360 for DON and 13440 for DOP.
    Keywords: Alkalinity, total; Ammonium; Analytical method; Carbon, inorganic, dissolved; Carbon, organic, dissolved; Carbon, organic, particulate; Chlorophyll a; Coastal waters; Comment; DATE/TIME; DEPTH, water; Dissolved Organic Carbon; Dissolved Organic Matter; dissolved organic nitrogen; dissolved organic phosphorus; ELEVATION; global database;; Hydrogen phosphate; Institution; LATITUDE; Location; LONGITUDE; Nitrate and Nitrite; Nitrogen, organic, dissolved; Nitrogen, particulate; Nitrogen, total dissolved; Phosphorus, organic, dissolved; Phosphorus, particulate; Phosphorus, total dissolved; Principal investigator; Quality flag, alkalinity, total; Quality flag, ammonium; Quality flag, carbon, inorganic, dissolved; Quality flag, carbon, organic, dissolved; Quality flag, carbon, organic, particulate; Quality flag, chlorophyll a; Quality flag, hydrogen phosphate; Quality flag, nitrate and nitrite; Quality flag, nitrogen, particulate; Quality flag, nitrogen, total dissolved; Quality flag, phosphorus, particulate; Quality flag, phosphorus, total dissolved; Reference/source; Salinity; Sample ID; Suspended solids, total; Temperature, water; World Oceans Circulation Experiment (WOCE) quality flags according to Jiang et al. (2022)
    Type: Dataset
    Format: text/tab-separated-values, 1286555 data points
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  • 5
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    Inorganic carbon outwelling from mangroves and saltmarshes drives coastal acidification (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-23
    Description: Concentrations of alkalinity (TA) and dissolved inorganic carbon (DIC) in porewater as well as in surface water measured during timeseries (fixed location) and spatial surveys (fixed time period) were compiled from 38 mangrove- and 8 saltmarsh-dominated creeks and estuaries. We used data from creeks that were predominantly surrounded by mangrove or saltmarsh vegetation and with minimal confounding factors such as mixed vegetation or large catchments. These creeks were located in either pristine or anthropologically impacted estuaries or coastal areas. Anthropologically impacted areas were defined as areas that were affected by nearby urban or agricultural activities, potentially delivering pollutants, e.g., sewage or fertilizers, to creeks. We also included pristine mangrove- and saltmarsh dominated estuaries. When available, environmental parameters were also recorded, i.e., season, salinity, temperature, pH, dissolved oxygen (DO), water level, porewater tracer radon (222Rn), partial pressure of carbon dioxide (pCO2), dissolved organic carbon (DOC), particulate organic carbon (POC), nitrate and nitrite (NOx), ammonium (NH4), total nitrogen (TN), phosphate (PO4), and total phosphorus (TP). Methods used to determine parameters are explained in each corresponding reference.
    Keywords: Alkalinity; Alkalinity, total; Alkalinity, total/Carbon, inorganic, dissolved ratio; Ammonium; Australia; Australia_M29; Australia_M30; Australia_M31; Australia_M32; Australia_M33; Australia_M34; Australia_M35; Australia_M36; Australia_M37; Australia_M38; blue carbon; Boron hydroxide; Brazil; Brazil_M18; Brazil_M19; Brazil_M20; Brazil_M21; CA_USA_S02; Carbon, inorganic, dissolved; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon dioxide, partial pressure; China; China_M03; China_S06; China_S07; China_S08; Condition; Country; DATE/TIME; Date/Time local; Dissolved inorganic carbon; Ecosystem; Ecuador; Ecuador_M22; Event label; French_Guiana_M17; French Guiana; GA_USA_S04; Identification; India; India_M04; India_M05; India_M06; India_M07; India_M08; India_M09; Japan; Japan_M02; Kenya; Kenya_M23; Kenya_M24; LATITUDE; LONGITUDE; MA_USA_S01; Madagascar; Madagascar_M28; mangroves; Nitrogen, total; Nitrogen oxide; Oxygen, dissolved; Palau; Palau_M15; Palau_M16; Papua_New_Guinea_M25; Papua New Guinea; pH; Philippines; Philippines_M10; Phosphate; Phosphorus, total; Radon-222; Reference/source; Salinity; saltmarshes; Sample type; SC_USA_S03; Season; Site; Spain; Spain_S05; Tanzania; Tanzania_M26; Tanzania_M27; Temperature, water; Thailand; Thailand_M14; USA; USA_M01; Vietnam; Vietnam_M11; Vietnam_M12; Vietnam_M13; Water level; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 67107 data points
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    DATA PANGAEA
  • 6
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    Lipid biomarker and bulk organic matter concentrations and carbon and hydrogen isotope data of sediment core GeoB7807-2 (2020)
    PANGAEA
    Details
    Publication Date: 2024-04-23
    Keywords: Alkenone, C37:2, per unit mass organic carbon; Alkenone, C37:2 per unit sediment mass; Alkenone, unsaturation index UK'37; Average chain length, n-Alkanes, C27-C33; Average chain length, n-fatty acid, C24-C30; Carbon, inorganic, total; Carbon, organic; Carbon/Nitrogen ratio; Carbon Preference Index, n-Alkanes (C26-C34); Carbon Preference Index, n-fatty acid (C23-C31); Center for Marine Environmental Sciences; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; GeoB7807-2; M52/3; MARUM; Meteor (1986); MUC; MultiCorer; n-Alkane C29, δ13C; n-Alkane C29, δD; n-Alkane C29-C31, per unit mass organic carbon; n-Alkane C29-C31, per unit sediment mass; n-Alkane C31, δ13C; n-Alkane C31, δD; n-fatty acid C16, per unit mass organic carbon; n-fatty acid C16, δD; n-fatty acid C16:0, δ13C; n-fatty acid C16 per unit sediment mass; n-fatty acid C24, per unit mass organic carbon; n-fatty acid C24, δD; n-fatty acid C24:0, δ13C; n-fatty acid C24 per unit sediment mass; n-fatty acid C26, δD; n-fatty acid C26:0, δ13C; n-fatty acid C28, per unit mass organic carbon; n-fatty acid C28, δD; n-fatty acid C28:0, δ13C; n-fatty acid C28 per unit sediment mass; n-fatty acid C30, δ13C; n-fatty acid C30, δD; Nitrogen; Northern Red Sea, Shaban Deep Area; Sea surface temperature, annual mean; δ13C, total organic carbon; δ Deuterium, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 805 data points
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    DATA PANGAEA
  • 7
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    Lipid biomarker and bulk organic matter concentrations and carbon and hydrogen isotope data of sediment core GeoB7805-1 (2020)
    PANGAEA
    Details
    Publication Date: 2024-04-23
    Keywords: 133; Alkenone, C37:2, per unit mass organic carbon; Alkenone, C37:2+C37:3, δ13C; Alkenone, C37:2+C37:3, δD; Alkenone, C37:2 per unit sediment mass; Alkenone, unsaturation index UK'37; Alkenones; Average chain length, n-Alkanes, C27-C33; Average chain length, n-fatty acid, C24-C30; Carbon, inorganic, total; Carbon, organic; Carbon/Nitrogen ratio; Carbon Preference Index, n-Alkanes (C26-C34); Carbon Preference Index, n-fatty acid (C23-C31); Center for Marine Environmental Sciences; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; fatty acids; GeoB7805-1; lipid biomarkers; M52/3; marine organic matter degradation; MARUM; Meteor (1986); MUC; MultiCorer; n-Alkane C29, δ13C; n-Alkane C29, δD; n-Alkane C29-C31, per unit mass organic carbon; n-Alkane C29-C31, per unit sediment mass; n-Alkane C31, δ13C; n-Alkane C31, δD; n-alkanes; n-fatty acid C16, per unit mass organic carbon; n-fatty acid C16, δD; n-fatty acid C16:0, δ13C; n-fatty acid C16 per unit sediment mass; n-fatty acid C24, per unit mass organic carbon; n-fatty acid C24, δD; n-fatty acid C24:0, δ13C; n-fatty acid C24 per unit sediment mass; n-fatty acid C26, δD; n-fatty acid C26:0, δ13C; n-fatty acid C28, per unit mass organic carbon; n-fatty acid C28, δD; n-fatty acid C28:0, δ13C; n-fatty acid C28 per unit sediment mass; n-fatty acid C30, δ13C; n-fatty acid C30, δD; Nitrogen; Northern Red Sea, Shaban Deep Area; particulate organic matter; Red Sea; Sea surface temperature, annual mean; Shaban Deep; stable carbon isotopes δ13C; stable hydrogen isotopes δ2H; δ13C, total organic carbon; δ Deuterium, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 902 data points
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  • 8
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    Dissolved organic matter composition and reactivity in Lake Victoria, the world’s largest tropical lake (2020)
    Springer
    Details
    Publication Date: 2020-07-04
    Print ISSN: 0168-2563
    Electronic ISSN: 1573-515X
    Topics: Chemistry and Pharmacology , Geosciences
    Published by Springer
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  • 9
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    Carbon processing by the benthic ecosystem and benthic C fixation in methane-rich sediments on the South Georgia margin (2019)
    Cambridge University Press
    Details
    Publication Date: 2019
    Description: 〈div data-abstract-type="normal"〉〈p〉As bottom water warms, destabilisation of gas hydrates may increase the extent of methane-rich sediments. The authors present an assessment of organic carbon processing by the benthic community in methane-rich sediments, including one of the first investigations of inorganic C fixation in a non-hydrothermal vent setting. This topic was previously poorly studied, and there is much need to fill the gaps in knowledge of such ecosystems. The authors hypothesized that benthic C fixation would occur, and that a high biomass macrofaunal community would play a substantial role in organic C cycling. Experiments were conducted at a 257 m deep site off South Georgia. Sediment cores were amended with 〈span〉13〈/span〉C and 〈span〉15〈/span〉N labelled algal detritus, or 〈span〉13〈/span〉C labelled bicarbonate solution. In the bicarbonate experiment, labelling of bacteria-specific phospholipid fatty acids provided direct evidence of benthic C fixation, with transfer of fixed C to macrofauna and dissolved organic carbon (DOC). In the algae experiment, macrofauna played an active role in organic carbon cycling. Compared to similar experiments, low temperature supressed the rates of community respiration and macrofaunal C uptake. While benthic C fixation occurred, the biological processing of organic carbon was dominantly controlled by low temperature and high photic zone productivity.〈/p〉〈/div〉
    Print ISSN: 0954-1020
    Electronic ISSN: 1365-2079
    Topics: Biology , Geography , Geosciences
    Published by Cambridge University Press on behalf of Antarctic Science Ltd.
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  • 10
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    Export and degassing of terrestrial carbon through watercourses draining a temperate podzolized catchment (2012)
    Springer
    Details
    Publication Date: 2012-08-25
    Print ISSN: 1015-1621
    Electronic ISSN: 1420-9055
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
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