Gasser, Beat; Martí, Elisa; Masqué, Pere; Duarte, Carlos Manuel; Delgado-Huertas, Antonio (2024): Sediment core dating to estimate carbon burial rates below seaweed farms [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965602
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2024-08-08 • DOI registered: 2024-09-06
Abstract:
Sediment cores were collected below seaweed farms between October 2020 and October 2021, in order to estimate the carbon burial rates and to compare them to reference sediments beyond the farm and/or prior to the farm operation. Sampling sites represented a total of 20 farms located in 11 different countries distributed globally, including the Americas, Europe, Africa and Asia. The majority of cores were taken manually by divers in shallow waters at <10 m depth. The sampling strategy consisted in collecting 3 cores within the farm area and 2 cores beyond it, as reference sites, which yielded a total of 108 cores. Cores were sliced at 0.5 cm, 1 cm and 2 cm thickness and analyzed for Pb-210, Ra-226, organic carbon and delta C-13. Pb-210 and Ra-226 were used to estimate the excess lead and to model the sedimentation rates over a time period of up to 100 years. Combined with the measurements of organic carbon concentration, carbon burial rates could be calculated at both farm and reference sites.
Supplement to:
Collins, William T; Boderskov, Teis; Sondak, Calvyn F A; Abdul, Al-Jeria; Boyce, Joshua; Reilly-Cayten, Megan; Neumeyer, Fritz; Cousteau, Alexandra; San Martin, Isidro; Marti, Elisa; Funderud, Jon; Borrero-Santiago, Ana R; Surugau, Noumie; Ranivoarivelo, Lanto; Pascal, Fred; Joanne, Paul; Chung, Ik Kyo; Choi, Chang Geun; Hori, Masakazu; Albasri, Hatim (in review): Carbon Burial in Sediments below Seaweed Farms. Nature Climate Change
Related to:
Duarte, Carlos Manuel; Delgado-Huertas, Antonio; Marti, Elisa; Gasser, Beat; San Martin, Isidro; Cousteau, Alexandra; Neumeyer, Fritz; Reilly-Cayten, Megan; Boyce, Joshua; Kuwae, Tomohiro; Hori, Masakazu; Miyajima, Toshihiro; Price, Nichole N; Arnold, Suzanne N; Ricart, Aurora M; Davis, Simon; Surugau, Noumie; Abdul, Al-Jeria; Wu, Jiaping; Xiao, Xi; Chung, Ik Kyo; Choi, Chang Geun; Sondak, Calvyn F A; Albasri, Hatim; Krause-Jensen, Dorte; Bruhn, Annette; Boderskov, Teis; Hancke, Kasper; Funderud, Jon; Borrero-Santiago, Ana R; Pascal, Fred; Joanne, Paul; Ranivoarivelo, Lanto; Collins, William T; Clark, Jennifer; Gutierrez, Juan Fermin; Riquelme, Ricardo; Avila, Marcela; Macreadie, Peter I; Masque, P (in review): Carbon Burial in Sediments below Seaweed Farms. bioRxiv, https://doi.org/10.1101/2023.01.02.522332
Project(s):
Global Seaweed Project, Blue Carbon (Oceans_2050)
Coverage:
Median Latitude: 21.717666 * Median Longitude: 52.766723 * South-bound Latitude: -41.908389 * West-bound Longitude: -125.086550 * North-bound Latitude: 63.716417 * East-bound Longitude: 139.921635
Date/Time Start: 2020-10-17T03:00:00 * Date/Time End: 2021-11-26T00:00:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 1.3700 m
Event(s):
Ariake_Sea_Farm_AH * Latitude: 33.084370 * Longitude: 130.174200 * Date/Time: 2021-05-23T23:10:00 * Elevation: -5.0 m * Penetration: 130 cm * Recovery: 100 cm * Location: Japan * Campaign: OCEANS_2050_Japan (Ariake Sea/Seto Inland Sea/Tokyo Bay) * Method/Device: Hand corer (HCOR) * Comment: Manual coring by SCUBA divers, inner diameter of PVC tube: 67mm
Ariake_Sea_Farm_AR * Latitude: 33.135810 * Longitude: 130.221720 * Date/Time: 2021-05-23T23:55:00 * Elevation: -5.0 m * Penetration: 136 cm * Recovery: 96 cm * Location: Japan * Campaign: OCEANS_2050_Japan (Ariake Sea/Seto Inland Sea/Tokyo Bay) * Method/Device: Hand corer (HCOR) * Comment: Manual coring by SCUBA divers, inner diameter of PVC tube: 67mm
Ariake_Sea_Farm_AT * Latitude: 33.114550 * Longitude: 130.290350 * Date/Time: 2021-05-24T22:40:00 * Elevation: -5.0 m * Penetration: 140 cm * Recovery: 90 cm * Location: Japan * Campaign: OCEANS_2050_Japan (Ariake Sea/Seto Inland Sea/Tokyo Bay) * Method/Device: Hand corer (HCOR) * Comment: Manual coring by SCUBA divers, inner diameter of PVC tube: 67mm
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | LATITUDE | Latitude | Geocode | |||
| 3 | LONGITUDE | Longitude | Duarte, Carlos Manuel | Geocode | ||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DATE/TIME | Date/Time | Duarte, Carlos Manuel | Geocode – Date/time of sampling | ||
| 6 | DATE/TIME | Date/Time | Duarte, Carlos Manuel | Geocode – Date of sampling | ||
| 7 | Diameter | Diameter | cm | Duarte, Carlos Manuel | ||
| 8 | Sample ID | Sample ID | Duarte, Carlos Manuel | |||
| 9 | Depth, top/min | Depth top | m | Masqué, Pere | ||
| 10 | Depth, bottom/max | Depth bot | m | Masqué, Pere | ||
| 11 | DEPTH, sediment/rock | Depth sed | m | Masqué, Pere | Geocode | |
| 12 | Dry mass | Dry m | g | Masqué, Pere | ||
| 13 | Dry mass per area | Dry m area | g/cm2 | Masqué, Pere | Calculated | Accumulated mass bottom |
| 14 | Dry mass per area | Dry m area | g/cm2 | Masqué, Pere | Calculated | Accumulated mass middle |
| 15 | Density, dry bulk | DBD | g/cm3 | Masqué, Pere | Calculated | |
| 16 | Lead-210 | 210Pb | Bq/kg | Masqué, Pere | Alpha spectroscopy | Total |
| 17 | Lead-210, uncertainty | 210Pb unc | ± | Masqué, Pere | Calculated | Propagated error |
| 18 | Radium-226 | 226Ra | Bq/kg | Masqué, Pere | Gamma spectrometry | |
| 19 | Radium-226, uncertainty | 226Ra unc | ± | Masqué, Pere | Calculated | Propagated error |
| 20 | Lead-210 excess | 210Pb xs | Bq/kg | Masqué, Pere | Estimated | |
| 21 | Carbon, organic | C org | % | Granados, Arsenio | Element analyser CNS, Carlo Erba NA1500 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
39725 data points
Download Data
View dataset as HTML (shows only first 2000 rows)