Citation:

meps10861

Name: Relative sensitivity of soft-bottom intertidal macrofauna to increased CO2 and experimental stress
Published: 2014-12-25
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

We used a controlled CO2 perturbation experiment to test hypotheses about changes in diversity, composition and structure of soft-bottom intertidal macrobenthic assemblages, under realistic and locally relevant scenarios of seawater acidification. Patches of undisturbed sediment were collected from 2 types of intertidal sedimentary habitat in the Ria Formosa coastal lagoon (South Portugal) and exposed to 2 levels of seawater acidification (pH reduced by 0.3 and 0.6 units) and 1 unmanipulated (control) level. After 75 d the assemblages differed significantly between the 2 types of sediment and between field controls and the ex situ treatments, but not among the 3 pH levels tested. The naturally high values of total alkalinity buffered seawater from the changes imposed on carbonate chemistry and may have contributed to offsetting acidification at the local scale. Observed differences on biota were strongly related to the organic matter content and grain-size of the sediments, particularly to the fractions of medium and coarse sand. Soft-bottom intertidal macrofauna was significantly affected by the stress of being held in an artificial environment, but not by CO2-induced seawater acidification. Given the previously observed variations in the sensitivities of marine organisms to seawater acidification, direct extrapolations of the present findings to different regions or other types of assemblages do not seem advisable. However, the contribution of ex situ studies to the assessment of ecosystem-level responses to environmental disturbances could generally be improved by incorporating adequate field controls in the experimental design.

Keyword(s):

Abra nitida; Abra prismatica; Abra tenuis; Acteon tornatilis; Apohyale prevostii; Atylus swammerdami; Benthos; Biomass/Abundance/Elemental composition; Bittium sp.; Bulla striata; Calyptraea chinensis; Cerastoderma edule; Cerastoderma glaucum; Cerithium vulgatum; Coast and continental shelf; Community composition and diversity; Containers and aquaria (20-1000 L or < 1 m**2); Crangon crangon; Cyclope pellucida; Diogenes pugilator; Ensis siliqua; Entire community; Euphausia krohni; Haminoea hydatis; Laboratory experiment; Lekanesphaera monodi; Liocarcinus arcuatus; Loripes lacteus; Lutraria lutraria; Melita palmata; Mesalia mesal; Metapenaeus monoceros; Nassarius cuvieri; Nassarius incrassatus; Nassarius nitidus; Nassarius pfeifferi; Nassarius pygmaeus; Nassarius reticulatus; North Atlantic; Nucula nucleus; Nucula sulcata; Pachygrapsus marmoratus; Pagurus sp.; Paphia aurea; Paphia rhomboides; Parvicardium exiguum; Peringia ulvae; Pholas dactylus; Rissoa monodonta; Ruditapes decussatus; Scrobicularia plana; Soft-bottom community; Solen marginatus; Spisula subtruncata; Temperate; Upogebia pusilla

Further details:

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

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: 37.121580 * Longitude: -7.620060

Date/Time Start: 2011-09-28T00:00:00 * Date/Time End: 2011-12-16T00:00:00

Event(s):

SW_Iberian_Peninsula * Latitude: 37.121580 * Longitude: -7.620060 * Date/Time Start: 2011-09-28T00:00:00 * Date/Time End: 2011-12-16T00:00:00 * 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 2014-12-25.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Date	Date		Range, P		biological data measured
2	Habitat	Habitat		Range, P
3	Replicate	Repl		Range, P
4	Treatment	Treat		Range, P
5	Taxon/taxa	Taxa		Range, P
6	Family	Family		Range, P
7	Genus	Genus		Range, P
8	Species	Species		Range, P
9	Taxon/taxa	Taxa		Range, P		Oper. Taxon
10	Individuals	Ind	#	Range, P		ind/rep
11	Abundance per area	Abund a	#/m²	Range, P
12	Temperature, water	Temp	°C	Range, P		data was collected on 2011-12-07
13	Temperature, water, standard error	T std e	±	Range, P
14	Salinity	Sal		Range, P		data was collected on 2011-12-07
15	Salinity, standard error	Sal std e	±	Range, P
16	pH	pH		Range, P	Potentiometric	total scale, data was collected on 2011-12-07
17	pH, standard error	pH std e	±	Range, P	Potentiometric	total scale
18	Alkalinity, total	AT	µmol/kg	Range, P	Potentiometric titration	data was collected on 2011-12-07
19	Alkalinity, total, standard error	AT std e	±	Range, P	Potentiometric titration
20	Carbon, inorganic, dissolved	DIC	µmol/kg	Range, P	Calculated
21	Carbon, inorganic, dissolved, standard error	DIC std e	±	Range, P	Calculated
22	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Range, P	Calculated
23	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Range, P	Calculated
24	Calcite saturation state	Omega Cal		Range, P	Calculated
25	Calcite saturation state, standard error	Omega Cal std e	±	Range, P	Calculated
26	Aragonite saturation state	Omega Arg		Range, P	Calculated
27	Aragonite saturation state, standard error	Omega Arg std e	±	Range, P	Calculated
28	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
29	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
30	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)
31	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)
32	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	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:

11595 data points

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