Citation:

j.marenvres.2013.10.010

Name: Negative effects of ocean acidification on two crustose coralline species using genetically homogeneous samples
Published: 2014-07-14
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Benthos; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Hydrolithon samoense; Laboratory experiment; Lithophyllum kotschyanum; Macroalgae; North Pacific; Plantae; Rhodophyta; Single species; Temperate

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Abstract:

We evaluated acidification effects on two crustose coralline algal species common to Pacific coral reefs, Lithophyllum kotschyanum and Hydrolithon samoense. We used genetically homogeneous samples of both species to eliminate misidentification of species. The growth rates and percent calcification of the walls of the epithallial cells (thallus surface cells) of both species decreased with increasing pCO2. However, elevated pCO2 more strongly inhibited the growth of L. kotschyanum versus H. samoense. The trend of decreasing percent calcification of the cell wall did not differ between these species, although intercellular calcification of the epithallial cells in L. kotschyanum was apparently reduced at elevated pCO2, a result that might indicate that there are differences in the solubility or density of the calcite skeletons of these two species. These results can provide knowledge fundamental to future studies of the physiological and genetic mechanisms that underlie the response of crustose coralline algae to environmental stresses.

Keyword(s):

Benthos; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Hydrolithon samoense; Laboratory experiment; Lithophyllum kotschyanum; Macroalgae; North Pacific; Plantae; Rhodophyta; Single species; 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)

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 2014-07-11.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Species	Species		Kato, A
2	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Kato, A		treatment
3	Aquarium number	Aquarium		Kato, A
4	Identification	ID		Kato, A		sample
5	Mass change	Mass chn	g	Kato, A		for 8 weeks
6	Number of points	Points	#	Kato, A		on cell walls
7	Number of points	Points	#	Kato, A		not on cell walls
8	Salinity	Sal		Kato, A
9	Temperature, water	Temp	°C	Kato, A
10	Temperature, water, standard deviation	Temp std dev	±	Kato, A
11	pH	pH		Kato, A	Potentiometric	total scale
12	pH, standard deviation	pH std dev	±	Kato, A	Potentiometric	total scale
13	Alkalinity, total	AT	µmol/kg	Kato, A	Potentiometric titration
14	Alkalinity, total, standard deviation	AT std dev	±	Kato, A	Potentiometric titration
15	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Kato, A	Calculated using CO2calc
16	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Kato, A	Calculated using CO2calc
17	Bicarbonate ion	[HCO3]-	µmol/kg	Kato, A	Calculated using CO2calc
18	Bicarbonate ion, standard deviation	[HCO3]- std dev	±	Kato, A	Calculated using CO2calc
19	Carbonate ion	[CO3]2-	µmol/kg	Kato, A	Calculated using CO2calc
20	Carbonate ion, standard deviation	[CO3]2- std dev	±	Kato, A	Calculated using CO2calc
21	Carbon dioxide	CO2	µmol/kg	Kato, A	Calculated using CO2calc
22	Carbon dioxide, standard deviation	CO2 std dev	±	Kato, A	Calculated using CO2calc
23	Calcite saturation state	Omega Cal		Kato, A	Calculated using CO2calc
24	Calcite saturation state, standard deviation	Omega Cal std dev	±	Kato, A	Calculated using CO2calc
25	Aragonite saturation state	Omega Arg		Kato, A	Calculated using CO2calc
26	Aragonite saturation state, standard deviation	Omega Arg std dev	±	Kato, A	Calculated using CO2calc
27	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
28	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
29	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)
30	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)
31	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	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:

4980 data points

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