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

Asnaghi, Valentina; Collard, Marie; Mangialajo, Luisa; Gattuso, Jean-Pierre; Dubois, Philippe (2023): Seawater carbonate chemistry and biomechanical properties of the skeletal plates of the sea urchin Paracentrotus lividus (Lamarck, 1816) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960351

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

RIS CitationBibTeX Citation

Abstract:
Sea urchins, ecologically important herbivores of shallow subtidal temperate reefs, are considered particularly threatened in a future ocean acidification scenario, since their carbonate structures (skeleton and grazing apparatus) are made up of the very soluble high-magnesium calcite, particularly sensitive to a decrease in pH. The biomechanical properties of their skeletal structures are of great importance for their individual fitness, because the skeleton provides the means for locomotion, grazing and protection from predators. Sea urchin skeleton is composed of discrete calcite plates attached to each other at sutures by organic ligaments. The present study addressed the fate of the sea urchin Paracentrotus lividus (Lamarck, 1816) skeleton in acidified oceans, taking into account the combined effect of reduced pH and macroalgal diet, with potential cascading consequences at the ecosystem level. A breaking test on individual plates of juvenile specimens fed different macroalgal diets has been performed, teasing apart plate strength and stiffness from general robustness. Results showed no direct short-term effect of a decrease in seawater pH nor of the macroalgal diet on single plate mechanical properties. Nevertheless, results from apical plates, the ones presumably formed during the experimental period, provided an indication of a possible diet-mediated response, with sea urchins fed the more calcified macroalga sustaining higher forces before breakage than the one fed the non-calcified algae. This, on the long term, may produce bottom-up effects on sea urchins, leading to potential shifts in the ecosystem equilibrium under an ocean acidified scenario.
Keyword(s):
Animalia; Benthic animals; Benthos; Containers and aquaria (20-1000 L or < 1 m**2); Echinodermata; Laboratory experiment; Laboratory strains; Not applicable; Other; Other studied parameter or process; Paracentrotus lividus; Single species
Supplement to:
Asnaghi, Valentina; Collard, Marie; Mangialajo, Luisa; Gattuso, Jean-Pierre; Dubois, Philippe (2019): Bottom-up effects on biomechanical properties of the skeletal plates of the sea urchin Paracentrotus lividus (Lamarck, 1816) in an acidified ocean scenario. Marine Environmental Research, 144, 56-61, https://doi.org/10.1016/j.marenvres.2018.12.002
Documentation:
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 (2022): seacarb: seawater carbonate chemistry with R. R package version 3.3.1. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-07-06.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeAsnaghi, Valentina
2Species, unique identificationSpecies UIDAsnaghi, Valentina
3Species, unique identification (URI)Species UID (URI)Asnaghi, Valentina
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Asnaghi, Valentina
5PlatePlateAsnaghi, Valentinatype
6Treatment: pHT:pHAsnaghi, Valentina
7DietDietAsnaghi, Valentina
8IndividualsInd#Asnaghi, Valentina
9Youngs modulusE mN/mm2Asnaghi, Valentina
10ForceFNAsnaghi, Valentinaat fracture
11AreaAreamm2Asnaghi, Valentinatubercle
12SalinitySalAsnaghi, Valentina
13pHpHAsnaghi, Valentinatotal scale
14pH, standard deviationpH std dev±Asnaghi, Valentina
15Alkalinity, totalATµmol/kgAsnaghi, Valentina
16Alkalinity, total, standard deviationAT std dev±Asnaghi, Valentina
17Temperature, waterTemp°CAsnaghi, Valentina
18Temperature, water, standard deviationTemp std dev±Asnaghi, Valentina
19Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Calcite 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:
3600 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)