Citation:

j.aquatox.2011.03.001

Name: Seawater carbonate chemistry and echinoderm Asterias rubens biological processes during experiments, 2011
Published: 2011-09-01
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Asterias rubens; Benthic animals; Benthos; Containers and aquaria (20-1000 L or < 1 m**2); Echinodermata; Immunology/Self-protection; Laboratory experiment; North Atlantic; Single species

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Abstract:

We compared effects of exposure to predicted near-future (2100) ocean acidification (OA; pH 7.7) and normal seawater (Control; pH 8.1) on immune and stress responses in the adult sea star Asterias rubens. Analyses were made after one week and after six months of continuous exposure. Following one week exposure to acidified water, the pH of coelomic fluid was significantly reduced. Levels of the chaperon Hsp70 were elevated while key cellular players in immunity, coelomocytes, were reduced by approximately 50%. Following long-term exposure (six months) levels of Hsp70 returned to control values, whereas immunity was further impaired, evidenced by the reduced phagocytic capacity of coelomocytes and inhibited activation of p38 MAP-kinase. Such impacts of reduced seawater pH may have serious consequences for resistance to pathogens in a future acidified ocean.

Keyword(s):

Animalia; Asterias rubens; Benthic animals; Benthos; Containers and aquaria (20-1000 L or < 1 m**2); Echinodermata; Immunology/Self-protection; Laboratory experiment; North Atlantic; Single species

Project(s):

European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)

European Project on Ocean Acidification (EPOCA)

Ocean Acidification International Coordination Centre (OA-ICC)

Funding:

Seventh Framework Programme (FP7), grant/award no. 211384 : European Project on Ocean Acidification

Sixth Framework Programme (FP6), grant/award no. 511106 : European network of excellence for Ocean Ecosystems Analysis

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Experimental treatment	Exp treat		Hernroth, Bodil
2	Salinity	Sal		Hernroth, Bodil
3	Temperature, water	Temp	°C	Hernroth, Bodil
4	Alkalinity, total	AT	mmol(eq)/l	Hernroth, Bodil
5	Alkalinity, total	AT	µmol/kg	Hernroth, Bodil	Calculated
6	pH	pH		Hernroth, Bodil		NBS scale: H+ ion concentration in µmol/l
7	pH	pH		Hernroth, Bodil	Calculated	NBS scale: H+ ion concentration in µmol/kg
8	Identification	ID		Hernroth, Bodil
9	Asterias rubens, phagocytosis	A. rubens phagocytosis		Hernroth, Bodil	see reference(s)
10	Asterias rubens, coelomocyte	A. rubens coelomocyte	#	Hernroth, Bodil	see reference(s)
11	Asterias rubens, 70 kilodalton heat shock protein per protein mass	A. rubens Hsp-70/prot	pg/mg	Hernroth, Bodil	see reference(s)
12	Asterias rubens, mitogen activated protein kinase p38 per protein mass	A. rubens MAPK p38/prot	pg/mg	Hernroth, Bodil	see reference(s)
13	Asterias rubens, pH, coelomic fluid	A. rubens pHc		Hernroth, Bodil	pH meter (Metrohm electrodes)
14	Carbon, inorganic, dissolved	DIC	µmol/kg	Hernroth, Bodil	Calculated using CO2SYS
15	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
16	pH	pH		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Total scale
17	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
18	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
19	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
20	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
21	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
22	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
23	Calcite saturation state	Omega Cal		Nisumaa, Anne-Marin	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:

551 data points

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