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  • 1
    facet.materialart.
    Unknown
    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
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Salinity, depth, current, temperature, dissolved oxygen, carbon dioxide, radon (222Rn), pH and chlorophyll hourly variation in two mangrove tidal creeks in Brazil: Paraty and Florianópolis (2024)
    PANGAEA
    Details
    Publication Date: 2024-05-17
    Description: Salinity, depth, current, temperature, oxygen, carbon dioxide (CO2), radon (222Rn), pH and chlorophyll hourly variation during a complete neap to spring tidal cycle in 2 mangrove creeks in Brazil: Paraty (23°18'06.2S 44°38'53.6W) and Florianópolis (27°38'55.6S 48°33'11.2W). Sea level and current velocities were measured every 2 minutes using a ADCP (Nortek ECO) deployed in the mouth of each tidal creek. Salinity and temperature (Solinst Levelogger 5), dissolved oxygen (PME miniDOT) and pH (Onset HOBO pH logger) probes were attached to the vessel at 0.5 m depth and set to record every minute. Chlorophyll was also recorded every minute using a YSI EXO2. A submergible water pump was installed from the vessel at 0.5 m depth to continuously transport (3 L min-1) surface mangrove creek water into a RAD AQUA DURRIDGE showerhead gas equilibrator. The headspace air was pumped to a Drierite® desiccant and then to an automated radon (222Rn) detector (RAD7, DURRIDGE) coupled with a CO2 trace gas analyzer (LI-COR 7810). The gas equilibrator and detectors were connected in series in a closed air loop . The 222Rn activities (measured each 30 min) and pCO2 (1 min frequency) in air were converted to dissolved in seawater using their partitioning and solubility coefficients. The time series data were integrated using moving averages every hour to allow comparison across the different variables and time scales.
    Keywords: Acoustic doppler current profiler (ADCP), Nortek, Eco; Brazil; Carbon dioxide; Carbon dioxide, partial pressure; Carbon dioxide saturation; chlorophyll; Chlorophyll total; CO2; Costeira; current; Current velocity, horizontal; DATE/TIME; DEPTH, water; dissolved oxygen; ELEVATION; Event label; Florianópolis, Brazil; LATITUDE; LONGITUDE; Mamanguá; mangrove; MULT; Multiparameter probe, YSI Xylem Inc., EXO2; Multiple investigations; Oxygen; Oxygen logger, PME, miniDOT; Oxygen saturation; Paraty, Brazil; pH; pH logger, Onset, HOBO; radon; Radon-222; Radon detector, DURRIDGE, RAD7; Salinity; subtropical area; Temperate; Temperature, water; tidal cycle; Tides; Trace gas analyzer, LI-COR, LI-7810; Tropical; Water level datalogger, Solinst, Levelogger 5
    Type: Dataset
    Format: text/tab-separated-values, 3716 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Carbon and alkalinity outwelling across the groundwater‐creek‐shelf continuum off Amazonian mangroves (2021)
    In:  EPIC3Limnology and Oceanography Letters, 6(6), pp. 369-378, ISSN: 2378-2242
    Details
    Publication Date: 2022-01-03
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
  • 4
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    Unknown
    Carbon and alkalinity outwelling across the groundwater‐creek‐shelf continuum off Amazonian mangroves (2021)
    ASLO (Association for the Sciences of Limnology and Oceanography) | Wiley
    Details
    Publication Date: 2024-02-07
    Description: Lateral fluxes (i.e., outwelling) of dissolved organic (DOC) and inorganic (DIC) carbon and total alkalinity were estimated using radium isotopes at the groundwater, mangrove creek, and continental shelf scales in the Amazon region. Observations of salinity and radium isotopes in the creek indicated tidally driven groundwater exchange as the main source of carbon. Radium-derived transport rates indicate that mangrove carbon is exported out of the continental shelf on timescales of 22 ± 7 d. Bicarbonate was the main form (82% ± 11%) of total dissolved carbon in all samples, followed by DOC (13% ± 12%) and CO2 (5% ± 4%). DIC (18.7 ± 15.7 mmol m−2 d−1) exceeded DOC (3.0 ± 4.1 mmol m−2 d−1) outwelling at all spatial scales. The interpretation of outwelling across the mangrove-ocean continuum is related to the spatial and temporal scales investigated. At all scales, outwelling represented a major coastal carbon pathway driving bicarbonate storage in the ocean.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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