Citation:

j.chemosphere.2012.09.063

Name: Impact of medium-term exposure to elevated pCO2 levels on the physiological energetics of the mussel Mytilus chilensis
Published: 2013
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Behaviour; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus chilensis; Other metabolic rates; Respiration; Single species; South Pacific; Temperate

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Abstract:

This study evaluated the impact of medium-term exposure to elevated pCO2 levels (750-1200 ppm) on the physiological processes of juvenile Mytilus chilensis mussels over a period of 70 d in a mesocosm system. Three equilibration tanks filled with filtered seawater were adjusted to three pCO2 levels: 380 (control), 750 and 1200 ppm by bubbling air or an air-CO2 mixture through the water. For the control, atmospheric air (with aprox. 380 ppm CO2) was bubbled into the tank; for the 750 and 1200 ppm treatments, dry air and pure CO2 were blended to each target concentration using mass flow controllers for air and CO2. No impact on feeding activity was observed at the beginning of the experiment, but a significant reduction in clearance rate was observed after 35 d of exposure to highly acidified seawater. Absorption rate and absorption efficiency were reduced at high pCO2 levels. In addition, oxygen uptake fell significantly under these conditions, indicating a metabolic depression. These physiological responses of the mussels resulted in a significant reduction of energy available for growth (scope for growth) with important consequences for the aquaculture of this species during medium-term exposure to acid conditions. The results of this study clearly indicate that high pCO2 levels in the seawater have a negative effect on the health of M. chilensis. Therefore, the predicted acidification of seawater associated with global climate change could be harmful to this ecologically and commercially important mussel.

Keyword(s):

Animalia; Behaviour; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus chilensis; Other metabolic rates; Respiration; Single species; South Pacific; Temperate

Further details:

Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: -43.133330 * Longitude: -73.733330

Date/Time Start: 2010-11-01T00:00:00 * Date/Time End: 2010-11-30T00:00:00

Event(s):

Yaldad_Bay * Latitude: -43.133330 * Longitude: -73.733330 * Date/Time Start: 2010-11-01T00:00:00 * Date/Time End: 2010-11-30T00:00:00 * Method/Device: Experiment (EXP)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 2014-09-10.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Species	Species		Navarro, Jorge M
2	Treatment	Treat		Navarro, Jorge M
3	Clearance rate per individual	CR	ml/#/h	Navarro, Jorge M
4	Clearance rate, standard error	CR std e	±	Navarro, Jorge M
5	Scope for growth	SfG	J/#/h	Navarro, Jorge M
6	Scope for growth, standard error	SfG std e	±	Navarro, Jorge M
7	Ammonia excretion per individual	NH3/[NH4]+ exc/ind	µg/#/h	Navarro, Jorge M
8	Ammonia excretion, standard error	NH3/[NH4]+ exc std e	±	Navarro, Jorge M
9	Respiration rate, oxygen, per individual	Resp O2/ind	µl/#/h	Navarro, Jorge M
10	Respiration rate, oxygen, standard error	Resp O2 std e	±	Navarro, Jorge M
11	Absorption efficiency	Absorp eff	%	Navarro, Jorge M
12	Absorption efficiency, standard error	Absorp eff std e	±	Navarro, Jorge M
13	Absorption rate	Absorp	mg/#/h	Navarro, Jorge M		per individual
14	Absorption rate, standard error	Absorp std e	±	Navarro, Jorge M		per individual
15	Ingestion rate	IR	mg/#/h	Navarro, Jorge M		organic, per individual
16	Ingestion rate, standard error	IR std e	±	Navarro, Jorge M		organic, per individual
17	pH	pH		Navarro, Jorge M	Potentiometric	total scale, at 25 °C
18	pH, standard error	pH std e	±	Navarro, Jorge M	Potentiometric	total scale, at 25 °C
19	pH	pH		Navarro, Jorge M	Calculated	total scale, in situ
20	pH, standard error	pH std e	±	Navarro, Jorge M	Calculated	total scale, in situ
21	Salinity	Sal		Navarro, Jorge M
22	Salinity, standard error	Sal std e	±	Navarro, Jorge M
23	Temperature, water	Temp	°C	Navarro, Jorge M
24	Temperature, water, standard error	T std e	±	Navarro, Jorge M
25	Alkalinity, total	AT	µmol/kg	Navarro, Jorge M	Potentiometric titration
26	Alkalinity, total, standard error	AT std e	±	Navarro, Jorge M	Potentiometric titration
27	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	ppmv	Navarro, Jorge M	Calculated using CO2SYS
28	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Navarro, Jorge M	Calculated using CO2SYS
29	Carbonate ion	[CO3]2-	µmol/kg	Navarro, Jorge M	Calculated using CO2SYS
30	Carbonate ion, standard error	[CO3]2- std e	±	Navarro, Jorge M	Calculated using CO2SYS
31	Aragonite saturation state	Omega Arg		Navarro, Jorge M	Calculated using CO2SYS
32	Aragonite saturation state, standard error	Omega Arg std e	±	Navarro, Jorge M	Calculated using CO2SYS
33	Calcite saturation state	Omega Cal		Navarro, Jorge M	Calculated using CO2SYS
34	Calcite saturation state, standard error	Omega Cal std e	±	Navarro, Jorge M	Calculated using CO2SYS
35	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
37	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	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)
39	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)
40	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
41	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
42	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
43	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
44	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:

132 data points

Data

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

1 Species	2 Treat	3 CR [ml/#/h]	4 CR std e [±]	5 SfG [J/#/h]	6 SfG std e [±]	7 NH3/[NH4]+ exc/ind [µg/#/h]	8 NH3/[NH4]+ exc std e [±]	9 Resp O2/ind [µl/#/h]	10 Resp O2 std e [±]	11 Absorp eff [%]	12 Absorp eff std e [±]	13 Absorp [mg/#/h] (per individual)	14 Absorp std e [±] (per individual)	15 IR [mg/#/h] (organic, per individual)	16 IR std e [±] (organic, per individual)	17 pH (total scale, at 25 °C, Potent...)	18 pH std e [±] (total scale, at 25 °C, Potent...)	19 pH (total scale, in situ, Calculated)	20 pH std e [±] (total scale, in situ, Calculated)	21 Sal	22 Sal std e [±]	23 Temp [°C]	24 T std e [±]	25 AT [µmol/kg] (Potentiometric titration)	26 AT std e [±] (Potentiometric titration)	27 pCO2water_SST_wet [ppmv] (Calculated using CO2SYS)	28 pCO2water_SST_wet std e [±] (Calculated using CO2SYS)	29 [CO3]2- [µmol/kg] (Calculated using CO2SYS)	30 [CO3]2- std e [±] (Calculated using CO2SYS)	31 Omega Arg (Calculated using CO2SYS)	32 Omega Arg std e [±] (Calculated using CO2SYS)	33 Omega Cal (Calculated using CO2SYS)	34 Omega Cal std e [±] (Calculated using CO2SYS)	35 CSC flag (Calculated using seacarb afte...)	36 pH (total scale, Calculated using...)	37 CO2 [µmol/kg] (Calculated using seacarb afte...)	38 pCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	39 fCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	40 [HCO3]- [µmol/kg] (Calculated using seacarb afte...)	41 [CO3]2- [µmol/kg] (Calculated using seacarb afte...)	42 DIC [µmol/kg] (Calculated using seacarb afte...)	43 Omega Arg (Calculated using seacarb afte...)	44 Omega Cal (Calculated using seacarb afte...)
Mytilus chilensis (mollusk)	pCO2=380 ppm	281	4	1.303	0.063	2.223	0.085	34.957	0.404	59.427	1.411	0.109	0.008	0.186	0.003	7.91	0.05	7.90	0.75	33.55	0.47	16.05	0.81	2236.94	26.28	405.22	55.15	150.24	25.18	2.38	0.27	3.70	0.42	8	8.04	14.42	395.52	394.13	1856.16	153.71	2024.29	2.38	3.70
Mytilus chilensis (mollusk)	pCO2=750 ppm	269	7	1.128	0.053	2.047	0.100	31.268	0.669	54.104	0.663	0.096	0.006	0.178	0.005	7.71	0.03	7.84	0.05	33.45	0.64	15.59	0.73	2226.55	29.25	676.23	50.74	99.16	15.49	1.51	0.32	2.36	0.05	8	7.85	24.52	662.94	660.59	1974.88	101.48	2100.88	1.57	2.44
Mytilus chilensis (mollusk)	pCO2=1200 ppm	256	8	0.942	0.115	2.102	0.068	31.208	0.848	52.079	2.099	0.087	0.004	0.169	0.005	7.57	0.04	7.70	0.05	33.61	1.04	15.39	0.86	2241.01	62.40	981.92	72.64	74.17	12.80	1.13	0.25	1.76	0.39	8	7.70	35.57	956.83	953.44	2053.62	75.59	2164.78	1.17	1.82