Teixido, Nuria; Alliouane, Samir; Kroeker, Kristy J; Mirasole, Alice (2023): Seawater carbonate chemistry at CO2 vents and ambient pH sites along the coast of Ischia (Italy), in 2010 and 2019 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964032
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
We present measured and estimated seawater physiochemical parameters at CO2 vents and ambient pH sites along the coast of Ischia (Italy) across water depths from 1 m to 40 m. We characterized the physical and chemical parameters in four CO2 venting sites (vent 1 to vent 4) and reference sites with ambient pH with no venting activity (two reference sites for each CO2 vent). SeaFETTM Ocean pH sensors (Satlantic) were deployed to quantify variation in pH at the CO2 vents and their corresponding ambient pH sites at the same depths where benthic surveys were performed from May to October 2019. Before deployment, the SeaFETs were calibrated with ambient pH water. The mean offset between calibration samples and calibrated SeaFET pH was ± 0.006 units (n= 44 water samples), indicating a high-quality pH dataset. The pH sensors were deployed in the recently discovered CO2 vents (Vent 2, Vent 3, Vent 4) and one of the corresponding reference areas with no visible vent activity during the same period (ambient 2a, ambient 3a, ambient 4a). The pH and seawater physicochemical parameters for vent 1 and their corresponding ambient sites (site Castello Aragonese) are also included here. This data from the Castello Aragonese site was originally reported by Kroeker et al., 2011. Discrete water samples were collected using Niskin bottles at the vent and reference areas with ambient pH to measure: i) the carbonate system parameters during the pH sensor deployment, and ii) the dissolved inorganic nutrients. Salinity was measured using a CTD (CTD Sea-Bird Electronics SBE 19 Plus Seacat). Discrete water samples for total alkalinity (AT) were collected within 0.25 m of the pH sensors using standard operating protocols. Precision of the AT measurements of CRMs was < 2 μmol kg-1 from nominal values. AT and pHT along with in situ temperature and depth were used to determine the remaining carbonate system parameters for each sampling period using the R package seacarb v3.2.12 (Gattuso et al., 2023).
Keyword(s):
Related to:
Kroeker, Kristy J; Micheli, Florenza; Gambi, Maria Cristina; Martz, Todd R (2011): Divergent ecosystem responses within a benthic marine community to ocean acidification. Proceedings of the National Academy of Sciences of the United States of America, 108(35), 14515-14520, https://doi.org/10.1073/pnas.1107789108
Teixidó, Núria; Carlot, Jérémy; Alliouane, Samir; Ballesteros, Enric; De Vittor, Cinzia; Gambi, Maria Cristina; Gattuso, Jean-Pierre; Kroeker, Kristy J; Micheli, Fiorenza; Mirasole, Alice; Parravacini, Valeriano; Villéger, Sébastien (2024): Functional changes across marine habitats due to ocean acidification. Global Change Biology, https://doi.org/10.1111/gcb.17105
Funding:
Agence Nationale de la Recherche (ANR), grant/award no. ANR-17-MOPGA-0001: Make Our Planet Great Again grant-4Oceans
Coverage:
Median Latitude: 40.725974 * Median Longitude: 13.963631 * South-bound Latitude: 40.711179 * West-bound Longitude: 13.883754 * North-bound Latitude: 40.759278 * East-bound Longitude: 14.032470
Date/Time Start: 2010-05-10T02:00:00 * Date/Time End: 2019-10-14T08:45:00
Minimum DEPTH, water: 1 m * Maximum DEPTH, water: 40 m
Event(s):
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | Teixido, Nuria | |||
2 | LATITUDE | Latitude | Teixido, Nuria | Geocode | ||
3 | LONGITUDE | Longitude | Teixido, Nuria | Geocode | ||
4 | DEPTH, water | Depth water | m | Teixido, Nuria | Geocode | |
5 | DATE/TIME | Date/Time | Teixido, Nuria | Geocode | ||
6 | Type | Type | Teixido, Nuria | |||
7 | Number | No | Teixido, Nuria | |||
8 | Salinity | Sal | Teixido, Nuria | CTD, Sea-Bird, SBE 19plus [Seacat] | ||
9 | Temperature, water | Temp | °C | Teixido, Nuria | ||
10 | pH | pH | Teixido, Nuria | total scale, was calculated with in situ modified Honeywell Durafet pH sensors in 2010 and with SeaFET Ocean pH sensors in 2019 | ||
11 | Alkalinity, total | AT | µmol/kg | Mirasole, Alice | Alkalinity titrator (Mettler Toledo G20S Compact Titrator, Switzerland) | |
12 | Alkalinity, total, standard deviation | AT std dev | ± | Mirasole, Alice | ||
13 | Carbonate system computation flag | CSC flag | Mirasole, Alice | Calculated with seacarb package in R | ||
14 | Carbon, inorganic, dissolved | DIC | µmol/kg | Mirasole, Alice | Calculated with seacarb package in R | |
15 | Carbon, inorganic, dissolved, standard deviation | DIC std dev | ± | Mirasole, Alice | Calculated with seacarb package in R | |
16 | Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) | pCO2water_SST_wet | µatm | Mirasole, Alice | Calculated with seacarb package in R | |
17 | Partial pressure of carbon dioxide, standard deviation | pCO2 std dev | ± | Mirasole, Alice | Calculated with seacarb package in R | |
18 | Calcite saturation state | Omega Cal | Mirasole, Alice | Calculated with seacarb package in R | ||
19 | Calcite saturation state, standard deviation | Omega Cal std dev | ± | Mirasole, Alice | Calculated with seacarb package in R | |
20 | Aragonite saturation state | Omega Arg | Mirasole, Alice | Calculated with seacarb package in R | ||
21 | Aragonite saturation state, standard deviation | Omega Arg std dev | ± | Mirasole, Alice | Calculated with seacarb package in R | |
22 | Silicate | Si(OH)4 | µmol/l | Teixido, Nuria | Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM | |
23 | Silicate, standard deviation | Si(OH)4 std dev | ± | Teixido, Nuria | ||
24 | Nitrite | [NO2]- | µmol/l | Teixido, Nuria | Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM | |
25 | Nitrite, standard deviation | [NO2]- std dev | ± | Teixido, Nuria | ||
26 | Phosphate | [PO4]3- | µmol/l | Teixido, Nuria | Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM | |
27 | Phosphate, standard deviation | [PO4]3- std dev | ± | Teixido, Nuria | ||
28 | Nitrate | [NO3]- | µmol/l | Teixido, Nuria | Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM | |
29 | Nitrate, standard deviation | NO3 std dev | ± | Teixido, Nuria | ||
30 | Ammonia | NH3 | µmol/l | Teixido, Nuria | Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM | |
31 | Ammonia, standard deviation | NH3 std dev | ± | Teixido, Nuria |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
139429 data points
Download Data
View dataset as HTML (shows only first 2000 rows)