Citation:

srep20197

Name: Ocean acidification increases cadmium accumulation in marine bivalves: a potential threat to seafood safety
Published: 2016-04-14
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Laboratory experiment; Meretrix meretrix; Mollusca; Mytilus edulis; North Pacific; Other studied parameter or process; Single species; Tegillarca granosa; Temperate

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Abstract:

To date, the effects of ocean acidification on toxic metals accumulation and the underlying molecular mechanism remains unknown in marine bivalve species. In the present study, the effects of the realistic future ocean pCO2 levels on the cadmium (Cd) accumulation in the gills, mantle and adductor muscles of three bivalve species, Mytilus edulis, Tegillarca granosa, and Meretrix meretrix, were investigated. The results obtained suggested that all species tested accumulated significantly higher Cd (p<0.05) in the CO2 acidified seawater during the 30 days experiment and the health risk of Cd (based on the estimated target hazard quotients, THQ) via consumption of M. meretrix at pH 7.8 and 7.4 significantly increased 1.21 and 1.32 times respectively, suggesting a potential threat to seafood safety. The ocean acidification-induced increase in Cd accumulation may have occurred due to (i) the ocean acidification increased the concentration of Cd and the Cd2+/Ca2+ in the seawater, which in turn increased the Cd influx through Ca channel; (ii) the acidified seawater may have brought about epithelia damage, resulting in easier Cd penetration; and (iii) ocean acidification hampered Cd exclusion.

Keyword(s):

Animalia; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Laboratory experiment; Meretrix meretrix; Mollusca; Mytilus edulis; North Pacific; Other studied parameter or process; Single species; Tegillarca granosa; Temperate

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb

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, 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 2016-04-14.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Liu, Guangxu		study
2	Species	Species		Liu, Guangxu
3	Registration number of species	Reg spec no		Liu, Guangxu
4	Uniform resource locator/link to reference	URL ref		Liu, Guangxu		WoRMS Aphia ID
5	Tissues	Tissues		Liu, Guangxu
6	Date	Date		Liu, Guangxu
7	Treatment	Treat		Liu, Guangxu
8	Sample code/label	Sample label		Liu, Guangxu
9	Cadmium	Cd	mg/kg	Liu, Guangxu
10	Cadmium, standard deviation	Cd std dev	±	Liu, Guangxu
11	pH	pH		Liu, Guangxu	Potentiometric	NBS scale
12	pH, standard deviation	pH std dev	±	Liu, Guangxu	Potentiometric	NBS scale
13	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Liu, Guangxu
14	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Liu, Guangxu
15	Salinity	Sal		Liu, Guangxu
16	Salinity, standard deviation	Sal std dev	±	Liu, Guangxu
17	Temperature, water	Temp	°C	Liu, Guangxu
18	Temperature, water, standard deviation	Temp std dev	±	Liu, Guangxu
19	Alkalinity, total	AT	µmol/kg	Liu, Guangxu
20	Alkalinity, total, standard deviation	AT std dev	±	Liu, Guangxu
21	Carbon, inorganic, dissolved	DIC	µmol/kg	Liu, Guangxu
22	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Liu, Guangxu
23	Aragonite saturation state	Omega Arg		Liu, Guangxu
24	Aragonite saturation state, standard deviation	Omega Arg std dev	±	Liu, Guangxu
25	Calcite saturation state	Omega Cal		Liu, Guangxu
26	Calcite saturation state, standard deviation	Omega Cal std dev	±	Liu, Guangxu
27	Mass	Mass	g	Liu, Guangxu
28	Mass, standard deviation	Mass std dev	±	Liu, Guangxu
29	Gene expression	Gene expression		Liu, Guangxu		relative expression level of gene pgp-5
30	Gene expression, standard deviation	Gene expression std dev	±	Liu, Guangxu		relative expression level of gene pgp-5
31	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
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	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Carbon, inorganic, dissolved	DIC	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:

1046 data points

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