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Ferraz, Mariana Aliceda; Kiyama, Ana Carolina; Primel, Ednei Gilberto; Barbosa, Sergiane Caldas; Castro, Ítalo Braga; Choueri, R B; Gallucci, Fabiane (2022): Seawater carbonate chemistry and the toxicity of a hydrophobic organic compound on a benthic community [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.947936

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Abstract:
Natural pH values in coastal waters vary largely among locations, ecosystems, and time periods; still, there is an ongoing acidification trend. In this scenario, more acidic pH values can alter bioavailability of organic contaminants, to organisms. Despite this, interactive effects between pH and chemical substances are not usually considered in Ecological Risk Assessment protocols. This study investigated the effects of pH on the toxicity of a hydrophobic organic compound on a benthic community using a microcosm experiment setup to assess the response of nematode assemblages exposed to environmentally relevant concentrations of Irgarol at two natural pH conditions. Estuarine nematode assemblages were exposed to two concentrations of Irgarol at pH 7.0 and 8.0 for periods of 7 and 35 days. Lower diversity of nematode genera was observed at the highest tested Irgarol concentration (1281 ± 65 ng/g). The results showed that the effects of Irgarol contamination were independent of pH variation, indicating no influence of acidification within this range on the toxicity of Irgarol to benthic meiofauna. However, the results showed that estuarine nematode assemblages are impacted by long-term exposure to low (but naturally occurring) pHs. This indicates that estuarine organisms may be under naturally high physiological pressure and that permanent changes in the ecosystem's environmental factors, such as future coastal ocean acidification, may drive organisms closer to the edges of their tolerance windows.
Keyword(s):
Benthos; Bottles or small containers/Aquaria (<20 L); Brackish waters; Community composition and diversity; Entire community; Laboratory experiment; Organic toxins; Soft-bottom community; South Atlantic; Temperate
Supplement to:
Ferraz, Mariana Aliceda; Kiyama, Ana Carolina; Primel, Ednei Gilberto; Barbosa, Sergiane Caldas; Castro, Ítalo Braga; Choueri, R B; Gallucci, Fabiane (2022): Does pH variation influence the toxicity of organic contaminants in estuarine sediments? Effects of Irgarol on nematode assemblages. Science of the Total Environment, 815, 152944, https://doi.org/10.1016/j.scitotenv.2022.152944
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: -23.779300 * Longitude: -45.969200
Event(s):
Itaguare_river_mouth * Latitude: -23.779300 * Longitude: -45.969200 * Method/Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2022-09-06.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeChoueri, R B
2Treatment: pHT:pHChoueri, R B
3Experiment dayExp daydayChoueri, R B
4IndividualsInd#Choueri, R Bnematode per microcosm
5Individuals, standard deviationInd std dev±Choueri, R Bnematode per microcosm
6TreatmentTreatChoueri, R B
7Genus richnessGenus richChoueri, R B
8Genus richness, standard deviationGenus rich std dev±Choueri, R B
9CybutryneCybutryneng/gChoueri, R BNominal concentrations (ng/g)
10CybutryneCybutryneng/gChoueri, R BAnalytical confirmation (ng/g)
11Temperature, waterTemp°CChoueri, R B
12Temperature, water, standard deviationTemp std dev±Choueri, R B
13pHpHChoueri, R BPotentiometrictotal scale
14pH, standard deviationpH std dev±Choueri, R BPotentiometrictotal scale
15SalinitySalChoueri, R B
16Salinity, standard deviationSal std dev±Choueri, R B
17Alkalinity, totalATµmol/kgChoueri, R BPotentiometric titration
18Alkalinity, total, standard deviationAT std dev±Choueri, R BPotentiometric titration
19Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmChoueri, R BCalculated using CO2SYS
20Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Choueri, R BCalculated using CO2SYS
21Bicarbonate ion[HCO3]-µmol/kgChoueri, R BCalculated using CO2SYS
22Bicarbonate ion, standard deviation[HCO3]- std dev±Choueri, R BCalculated using CO2SYS
23Carbonate ion[CO3]2-µmol/kgChoueri, R BCalculated using CO2SYS
24Carbonate ion, standard deviation[CO3]2- std dev±Choueri, R BCalculated using CO2SYS
25Carbon dioxideCO2µmol/kgChoueri, R BCalculated using CO2SYS
26Carbon dioxide, standard deviationCO2 std dev±Choueri, R BCalculated using CO2SYS
27Calcite saturation stateOmega CalChoueri, R BCalculated using CO2SYS
28Calcite saturation state, standard deviationOmega Cal std dev±Choueri, R BCalculated using CO2SYS
29Aragonite saturation stateOmega ArgChoueri, R BCalculated using CO2SYS
30Aragonite saturation state, standard deviationOmega Arg std dev±Choueri, R BCalculated using CO2SYS
31Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Carbon dioxide, standard deviationCO2 std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
34Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Fugacity of carbon dioxide in seawater, standard deviationfCO2 std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
36Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
38Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Bicarbonate ion, standard deviation[HCO3]- std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
40Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Carbonate ion, standard deviation[CO3]2- std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
42Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
43Carbon, inorganic, dissolved, standard deviationDIC std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
44Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
45Aragonite saturation state, standard deviationOmega Arg std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
46Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
47Calcite saturation state, standard deviationOmega Cal std dev±Yang, YanCalculated using seacarb after Orr et al. (2018)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
737 data points

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