Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Fujii, Masahiko; Ono, Tsuneo; Yamada, M; Ooue, Manabu; Ito, Takeru; Yang, Jen‑Han; Horiuchi, Yu; Oiwane, Hisashi; Wakita, Masahide; Wada, Shigeki (2025): Seawater carbonate chemistry and biodiversity of shallow-water CO2 seeps on Himeshima Island and Showa Iwojima Island, Japan [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.988343

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2025-12-29 • DOI registered: 2026-01-27

RIS CitationBibTeX Citation ShareShow MapGoogle Earth

Abstract:
This study is the first to investigate two shallow-water CO2 seeps near Japan from the perspective of ocean acidification. Seawater chemical properties and composition of benthic communities were investigated.
This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were provided by the author of the related paper (see Related to) to the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2025-12-29.
Keyword(s):
Benthos; CO2 vent; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; North Pacific; Rocky-shore community; Temperate
Related to:
Fujii, Masahiko; Ono, Tsuneo; Yamada, M; Ooue, Manabu; Ito, Takeru; Yang, Jen‑Han; Horiuchi, Yu; Oiwane, Hisashi; Wakita, Masahide; Wada, Shigeki (2025): Biogeochemical properties of shallow-water CO2 seeps on Himeshima Island and Showa Iwojima Island, Japan. Progress in Earth and Planetary Science, 12(1), 101, https://doi.org/10.1186/s40645-025-00772-w
References:
Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010
Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024
Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016
Related code / software:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Nippon Foundation Ocean Acidification Adaptation Project (OAAP)
Ocean Acidification International Coordination Centre (OA-ICC)
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 22H00555: Kakenhi
Japan Society for the Promotion of Science (JSPS), grant/award no. JPJSCCA20210006: International CO2 Natural Analogues Network (ICONA)
Coverage:
Median Latitude: 32.266210 * Median Longitude: 130.990610 * South-bound Latitude: 30.803420 * West-bound Longitude: 130.340390 * North-bound Latitude: 33.729000 * East-bound Longitude: 131.640830
Date/Time Start: 2024-08-20T00:00:00 * Date/Time End: 2024-12-02T00:00:00
Event(s):
Himeshima_CO2_seep * Latitude: 33.729000 * Longitude: 131.640830 * Date/Time Start: 2024-08-20T00:00:00 * Date/Time End: 2024-08-20T00:00:00
Showa_Iwojima_CO2_seep * Latitude: 30.803420 * Longitude: 130.340390 * Date/Time Start: 2024-12-01T00:00:00 * Date/Time End: 2024-12-02T00:00:00
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeFujii, Masahiko
2DateDateFujii, Masahiko
3SiteSiteFujii, Masahiko
4DistanceDistancemFujii, Masahikofrom CO2 seep
5CoverageCov%Fujii, MasahikoS. macrocarpum
6CoverageCov%Fujii, MasahikoM. myagroides
7CoverageCov%Fujii, MasahikoBare rock
8CoverageCov%Fujii, MasahikoCrustose coralline algae
9CoverageCov%Fujii, MasahikoS. micracanthum
10CoverageCov%Fujii, MasahikoS. ringgoldianum
11CoverageCov%Fujii, MasahikoP. arborescens
12CoverageCov%Fujii, MasahikoUnidentified algae
13CoverageCov%Fujii, MasahikoOthers
14CoverageCov%Fujii, MasahikoTurf algae
15CoverageCov%Fujii, MasahikoCorals
16CoverageCov%Fujii, MasahikoLow-profile algae
17CoverageCov%Fujii, MasahikoUrchin
18CoverageCov%Fujii, MasahikoWhite mat
19CoverageCov%Fujii, MasahikoSponge
20CoverageCov%Fujii, MasahikoSand
21SalinitySalFujii, Masahiko
22Temperature, waterTemp°CFujii, Masahiko
23pH, total scalepHTFujii, Masahiko
24Dry air column-averaged mole fraction of carbon dioxideXCO2ppmvFujii, Masahikodry at 1 atm
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmFujii, MasahikoCalculated using CO2SYS
26Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmFujii, MasahikoCalculated using CO2SYS
27Bicarbonate ion[HCO3]-µmol/kgFujii, MasahikoCalculated using CO2SYS
28Carbonate ion[CO3]2-µmol/kgFujii, MasahikoCalculated using CO2SYS
29Carbon, inorganic, dissolvedDICµmol/kgFujii, MasahikoCalculated using CO2SYS
30Alkalinity, totalATµmol/kgFujii, Masahiko
31Aragonite saturation stateOmega ArgFujii, MasahikoCalculated using CO2SYS
32Calcite saturation stateOmega CalFujii, MasahikoCalculated using CO2SYS
33Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1999 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML