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Title

Sediment inorganic carbon (PIC) deposits in seagrass meadows and adjacent sand-patches (v. 2)

AuthorsMazarrasa, Inés; Marbà, Núria ; Lovelock, Catherine E.; Serrano, Oscar ; Lavery, Paul S. ; Fourqurean, James W.; Kennedy, Hilary; Mateo, Miguel Ángel ; Krause-Jensen, Dorte; Steven, Andy D. L.; Duarte, Carlos M.
KeywordsSeagrass
Sediment
CaCO3
Carbon
Deposits
Reservoir
PIC
POC
Issue Date3-Aug-2018
PublisherCSIC-UIB - Instituto Mediterráneo de Estudios Avanzados (IMEDEA)
CitationMazarrasa, Inés; Marbà, Núria; Lovelock, Catherine E.; Serrano, Oscar; Lavery, Paul S.; Fourqurean, James W.; Kennedy, Hillary; Mateo, Miguel Ángel; Krause-Jensen, Dorte; Steven, Andy D. L.; Duarte, Carlos M., "Sediment inorganic carbon (PIC) deposits in seagrass meadows and adjacent sand-patches (v. 2)". 2018, DIGITAL.CSIC, http://dx.doi.org/10.20350/digitalCSIC/8555
AbstractThe database is a global compilation of published and unpublished data available on carbonate (CaCO3), particulate inorganic carbon (PIC) and particulate organic carbon (POC) stocks in sediments of seagrass meadows and adjacent un-vegetated sediments.
DescriptionThe database compiles published and unpublished data on carbonate (CaCO3) and/or particulate inorganic carbon (PIC) along with particulate organic carbon (POC) stocks if available, in sediments of seagrass meadows and adjacent un-vegetated patches. We considered the total pool of CaCO3 reported without distinguishing between the different biogenic carbonate mineral forms (calcite, Mg-calcite and aragonite). Fourqurean et al. (2012) provided data for 201 sites, and a literature search using both the Web of Knowledge (using the search terms “seagrass*” AND “inorganic carbon*” AND [“calcific* OR sediment* OR CaCO3 OR dissolut* OR diagenesis”]) and Google Scholar (using the search terms “seagrass carbonate”) yielded data for an additional 82 sites. The database was amended with unpublished values for 154 additional sites sampled by the authors. The database compiles data on sediment carbonate concentration for a total of 437 sites, of which 34 corresponded to sand patches adjacent to seagrass meadows. The final database comprises estimates for 403 seagrass vegetated sites, including 219 estimates for sediment surface samples (ca. 1-30 cm depth) and 184 estimates for sediment cores of variable length (149 cores < 100 cm-long, and 35 cores ≥ 100 cm-long). When only one of the variables, CaCO3 or PIC was reported, the other was estimated assuming that PIC is 12% of the total molar mass of the CaCO3. In most cases, particulate inorganic and organic carbon (PIC and POC) were reported as a percentage of dry weight (%DW), where PIC and POC, in mg cm-3, was calculated as the product of the fraction of sediment dry weight composed by PIC or POC and the dry bulk density (DBD) of a given sediment section (n = 340 sites). When DBD was not reported (n = 113 sites), we used the average DBD (1.03 g cm-3) reported by Fourqurean et al. (2012) for seagrass sediments in the calculations. Enquiries about the dabaset may be sent to Inés Mazarrasa <imazarrasa@imedea.uib-csic.es>.
[Access and reuse conditions] This database and its components are subject to a Creative Commons Attribution-Noncommercial-ShareAlike International licence 4.0.
[Reason for updating the database] This database is a corrected version of the database by Mazarrasa et al., (2015) (DIGITAL.CSIC, http://hdl.handle.net/10261/116550). In the previous version of the database, CaCO3 and PIC values for 3 sediment cores from Oyster Harbour, Western Australia (cores # 275-277) and from 13 cores from Greenland and Denmark (cores # 391-403) were wrong. In this new version of the database these errors have been corrected. In addition, we have added data of 35 sediment slices of the cores from Greenland (cores # 391-397) that were missing in the previous version of the database. These changes do not significantly affect the results presented in the paper published in Biogeoscience (Mazarrasa et al., 2015) that was produced using the previous version of the database.
URIhttp://hdl.handle.net/10261/168205
DOIhttp://dx.doi.org/10.20350/digitalCSIC/8555
ReferencesThe previous version of this database has been used in the following publication: Mazarrasa, I., Marbà, N., Lovelock, C.E., Serrano, O. Lavery, P.S., Fourqurean, J.W., Kennedy, H., Mateo, M.A., Krause-Jensen, D., Steven, A.D.L and Duarte, C.M. Seagrass meadows as a globally significant carbonate reservoir. Biogeosciences Discussions 2015. doi:10.5194/bgd-12-4107-2015
Fourqurean, J. W., Duarte, C. M., Kennedy, H., Marbà, N., Holmer, M., Mateo, M. A., Apostolaki, E.T., Kendrick, G.A., Krause-Jensen, D., McGlathery, K.J. and Serrano, O. Seagrass ecosystems as a globally significant carbon stock. Nature Geoscience. doi: 10.1038/NGEO1477
Mazarrasa, I., Marbà, N., Lovelock, C.E., Serrano, O. Lavery, P.S., Fourqurean, J.W., Kennedy, H., Mateo, M.A., Krause-Jensen, D., Steven, A.D.L and Duarte, C.M. Seagrass meadows as a globally significant carbonate reservoir. Biogeosciences Discussions. doi:10.5194/bgd-12-4107-2015
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