Citation:

fsv235

Name: Impact of high pCO2 and warmer temperatures on the process of silica biomineralization in the sponge Mycale grandis
Published: 2016-08-26
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mycale grandis; North Pacific; Other metabolic rates; Porifera; Single species; Temperature; Tropical

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Abstract:

Siliceous sponges have survived pre-historical mass extinction events caused by ocean acidification and recent studies suggest that siliceous sponges will continue to resist predicted increases in ocean acidity. In this study, we monitored silica biomineralization in the Hawaiian sponge Mycale grandis under predicted pCO2 and sea surface temperature scenarios for 2100. Our goal was to determine if spicule biomineralization was enhanced or repressed by ocean acidification and thermal stress by monitoring silica uptake rates during short-term (48 h) experiments and comparing biomineralized tissue ratios before and after a long-term (26 d) experiment. In the short-term experiment, we found that silica uptake rates were not impacted by high pCO2 (1050 µatm), warmer temperatures (27°C), or combined high pCO2 with warmer temperature (1119 µatm; 27°C) treatments. The long-term exposure experiments revealed no effect on survival or growth rates of M. grandis to high pCO2 (1198 µatm), warmer temperatures (25.6°C), or combined high pCO2 with warmer temperature (1225 µatm, 25.7°C) treatments, indicating that M. grandis will continue to prosper under predicted increases in pCO2 and sea surface temperature. However, ash-free dry weight to dry weight ratios, subtylostyle lengths, and silicified weight to dry weight ratios decreased under conditions of high pCO2 and combined pCO2 warmer temperature treatments. Our results show that rising ocean acidity and temperature have marginal negative effects on spicule biomineralization and will not affect sponge survival rates of M. grandis.

Keyword(s):

Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mycale grandis; North Pacific; Other metabolic rates; Porifera; Single species; Temperature; Tropical

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 2016-08-25.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Hill, R		study
2	Species	Species		Hill, R
3	Registration number of species	Reg spec no		Hill, R
4	Uniform resource locator/link to reference	URL ref		Hill, R		WoRMS Aphia ID
5	Figure	Fig		Hill, R
6	Replicate	Repl		Hill, R
7	Treatment	Treat		Hill, R
8	Sample ID	Sample ID		Hill, R
9	Identification	ID		Hill, R		tank
10	Time in hours	Time	h	Hill, R
11	Silicate uptake rate	Si(OH)4 upt rate	µmol/l/h	Hill, R		per sponge volume
12	Silicate uptake rate	Si(OH)4 upt rate	µmol/g/h	Hill, R		per ash free dry weight
13	Silicate uptake rate	Si(OH)4 upt rate	µmol/cm³/h	Hill, R		per size of injury
14	Weight loss	Loss	%	Hill, R
15	Length	l	µm	Hill, R		difference
16	Width	w	µm	Hill, R		difference
17	Biomass, ash free dry mass	Biom afdm	%	Hill, R		difference
18	Ratio	Ratio		Hill, R		differences between dissolved tissue ratio over the dry weight of sponge
19	Temperature, water	Temp	°C	Hill, R
20	Temperature, water, standard error	T std e	±	Hill, R
21	Salinity	Sal		Hill, R
22	Salinity, standard error	Sal std e	±	Hill, R
23	Alkalinity, total	AT	µmol/kg	Hill, R	Potentiometric titration
24	Alkalinity, total, standard error	AT std e	±	Hill, R	Potentiometric titration
25	pH	pH		Hill, R	Potentiometric	total scale
26	pH, standard error	pH std e	±	Hill, R	Potentiometric	total scale
27	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Hill, R	Calculated using CO2SYS
28	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Hill, R	Calculated using CO2SYS
29	Bicarbonate ion	[HCO3]-	µmol/kg	Hill, R	Calculated using CO2SYS
30	Bicarbonate ion, standard error	[HCO3]- std e	±	Hill, R	Calculated using CO2SYS
31	Carbonate ion	[CO3]2-	µmol/kg	Hill, R	Calculated using CO2SYS
32	Carbonate ion, standard error	[CO3]2- std e	±	Hill, R	Calculated using CO2SYS
33	Aragonite saturation state	Omega Arg		Hill, R	Calculated using CO2SYS
34	Aragonite saturation state, standard error	Omega Arg std e	±	Hill, R	Calculated using CO2SYS
35	Silicate	Si(OH)4	µmol/l	Hill, R
36	Silicate, standard error	Si(OH)4 std e	±	Hill, R
37	Oxygen	O2	µmol/l	Hill, R
38	Oxygen, standard error	O2 std e	±	Hill, R
39	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
40	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
41	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)
42	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)
43	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
44	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
45	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
46	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
47	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:

81732 data points

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