Citation:

bg-11-7363-2014

Name: Limpets counteract ocean acidification induced shell corrosion by thickening of aragonitic shell layers
Published: 2014
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Benthic animals; Benthos; Calcification/Dissolution; CO2 vent; Coast and continental shelf; Field observation; Growth/Morphology; Mediterranean Sea; Mollusca; Patella caerulea; Single species; Temperate

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Abstract:

Specimens of the patellogastropod limpet Patella caerulea were collected within (pHlow-shells) and outside (pHn-shells) a CO2 vent site at Ischia, Italy. Four pHlow-shells and four pHn-shells were sectioned transversally and scanned for polymorph distribution by means of confocal Raman microscopy. The pHlow-shells displayed a twofold increase in aragonite area fraction and size-normalised aragonite area. Size-normalised calcite area was halved in pHlow-shells. Taken together with the increased apical and the decreased flank size-normalised thickness of the pHlow-shells, these data led us to conclude that low-pH-exposed P. caerulea specimens counteract shell dissolution by enhanced shell production. This is different from normal elongation growth and proceeds through addition of aragonitic parts only, while the production of calcitic parts is confined to elongation growth. Therefore, aragonite cannot be regarded as a disadvantageous polymorph per se under ocean acidification conditions.

Keyword(s):

Animalia; Benthic animals; Benthos; Calcification/Dissolution; CO2 vent; Coast and continental shelf; Field observation; Growth/Morphology; Mediterranean Sea; Mollusca; Patella caerulea; Single species; Temperate

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: 40.730170 * Longitude: 13.966330

Event(s):

Ischia_OA * Latitude: 40.730170 * Longitude: 13.966330 * Method/Device: Experiment (EXP)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 is 2015-06-01.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Species	Species		Langer, Gerald
2	Site	Site		Langer, Gerald
3	Thickness, size normalized	SNT		Langer, Gerald		flank
4	Thickness, size normalized, standard deviation	SNT std dev	±	Langer, Gerald		flank
5	Thickness, size normalized	SNT		Langer, Gerald		apex
6	Thickness, size normalized, standard deviation	SNT std dev	±	Langer, Gerald		apex
7	Aragonite, fractionated	Arg frac	%	Langer, Gerald		area
8	Aragonite, standard deviation	Arg std dev	±	Langer, Gerald		area, fractionated
9	Area, size normalized	SNA		Langer, Gerald		aragonite
10	Area, size normalized, standard deviation	SNA std dev	±	Langer, Gerald		aragonite
11	Area, size normalized	SNA		Langer, Gerald		calcite
12	Area, size normalized, standard deviation	SNA std dev	±	Langer, Gerald		calcite
13	Salinity	Sal		Langer, Gerald
14	Temperature, water	Temp	°C	Langer, Gerald
15	Temperature, water, standard deviation	Temp std dev	±	Langer, Gerald
16	pH	pH		Langer, Gerald		total scale
17	pH, standard deviation	pH std dev	±	Langer, Gerald		total scale
18	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Langer, Gerald
19	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Langer, Gerald
20	Bicarbonate ion	[HCO3]-	µmol/kg	Langer, Gerald
21	Bicarbonate ion, standard deviation	[HCO3]- std dev	±	Langer, Gerald
22	Carbonate ion	[CO3]2-	µmol/kg	Langer, Gerald
23	Carbonate ion, standard deviation	[CO3]2- std dev	±	Langer, Gerald
24	Carbon dioxide	CO2	µmol/kg	Langer, Gerald
25	Carbon dioxide, standard deviation	CO2 std dev	±	Langer, Gerald
26	Carbon, inorganic, dissolved	DIC	µmol/kg	Langer, Gerald
27	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Langer, Gerald
28	Calcite saturation state	Omega Cal		Langer, Gerald
29	Aragonite saturation state, standard deviation	Omega Arg std dev	±	Langer, Gerald
30	Aragonite saturation state	Omega Arg		Langer, Gerald
31	Calcite saturation state, standard deviation	Omega Cal std dev	±	Langer, Gerald
32	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Alkalinity, total	AT	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
40	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

110 data points

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