Citation:

PANGAEA.754779

Name: Seawater carbonate chemistry, nutrients and growth rate during experiments with coral Astrangia poculata, 2010
Published: 2010-12-07
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Astrangia poculata; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Cnidaria; Coast and continental shelf; Laboratory experiment; Macro-nutrients; Single species; Temperate

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Abstract:

Zooxanthellate colonies of the scleractinian coral Astrangia poculata were grown under combinations of ambient and elevated nutrients (5 µM NO, 0.3 µM PO4, and 2nM Fe) and CO2 (780 ppmv) treatments for a period of 6 months. Coral calcification rates, estimated from buoyant weights, were not significantly affected by moderately elevated nutrients at ambient CO2 and were negatively affected by elevated CO2 at ambient nutrient levels. However, calcification by corals reared under elevated nutrients combined with elevated CO2 was not significantly different from that of corals reared under ambient conditions, suggesting that CO2 enrichment can lead to nutrient limitation in zooxanthellate corals. A conceptual model is proposed to explain how nutrients and CO2 interact to control zooxanthellate coral calcification. Nutrient limited corals are unable to utilize an increase in dissolved inorganic carbon (DIC) as nutrients are already limiting growth, thus the effect of elevated CO2 on saturation state drives the calcification response. Under nutrient replete conditions, corals may have the ability to utilize more DIC, thus the calcification response to CO2 becomes the product of a negative effect on saturation state and a positive effect on gross carbon fixation, depending upon which dominates, the calcification response can be either positive or negative. This may help explain how the range of coral responses found in different studies of ocean acidification can be obtained.

Keyword(s):

Animalia; Astrangia poculata; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Cnidaria; Coast and continental shelf; Laboratory experiment; Macro-nutrients; Single species; Temperate

Related to:

Holcomb, Michael; McCorkle, Daniel C; Cohen, Anne L (2010): Long-term effects of nutrient and CO2 enrichment on the temperate coral Astrangia poculata (Ellis and Solander, 1786). Journal of Experimental Marine Biology and Ecology, 386(1-2), 27-33, https://doi.org/10.1016/j.jembe.2010.02.007

Project(s):

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

European Project on Ocean Acidification (EPOCA)

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		Holcomb, Michael
2	Salinity	Sal		Holcomb, Michael	Hach conductivity probe
3	Salinity, standard deviation	Sal std dev	±	Holcomb, Michael
4	Temperature, water	Temp	°C	Holcomb, Michael	Onset logger
5	Temperature, standard deviation	T std dev	±	Holcomb, Michael
6	Phosphate	PHSPHT	µmol/kg	Holcomb, Michael	Continuous flow injection system, FIAlab 2600
7	Phosphate, standard deviation	[PO4]3- std dev	±	Holcomb, Michael
8	Silicate	SILCAT	µmol/kg	Holcomb, Michael	Continuous flow injection system, FIAlab 2600
9	Silicon, standard deviation	Si std dev	±	Holcomb, Michael
10	Nitrate and Nitrite	[NO3]- + [NO2]-	µmol/kg	Holcomb, Michael	Continuous flow injection system, FIAlab 2600
11	Nitrate and Nitrite, standard deviation	[NO3]- + [NO2]- std dev	±	Holcomb, Michael
12	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Holcomb, Michael	Infrared pCO2 analyzer (Qubit S151)
13	Carbon dioxide, partial pressure, standard deviation	pCO2 std dev	±	Holcomb, Michael
14	Alkalinity, total	AT	µmol/kg	Holcomb, Michael	Alkalinity, Gran titration (Gran, 1950)
15	Alkalinity, total, standard deviation	AT std dev	±	Holcomb, Michael
16	Calcification rate	Calc rate	g/m²/day	Holcomb, Michael	Buoyant weighing technique according to Davies (1989)
17	Calcification rate, standard deviation	Calc rate std dev	±	Holcomb, Michael
18	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
19	pH	pH		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Total scale
20	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
21	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)
22	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
23	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
24	Carbon, inorganic, dissolved	DIC	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
25	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
26	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)

Size:

104 data points

Data

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

1 Exp treat	2 Sal	3 Sal std dev [±]	4 Temp [°C]	5 T std dev [±]	6 PHSPHT [µmol/kg]	7 [PO4]3- std dev [±]	8 SILCAT [µmol/kg]	9 Si std dev [±]	10 [NO3]- + [NO2]- [µmol/kg]	11 [NO3]- + [NO2]- std dev [±]	12 pCO2water_SST_wet [µatm]	13 pCO2 std dev [±]	14 AT [µmol/kg]	15 AT std dev [±]	16 Calc rate [g/m²/day]	17 Calc rate std dev [±]	18 CSC flag	19 pH	20 CO2 [µmol/kg]	21 fCO2water_SST_wet [µatm]	22 [HCO3]- [µmol/kg]	23 [CO3]2- [µmol/kg]	24 DIC [µmol/kg]	25 Omega Arg	26 Omega Cal
Ambient seawater	31	0.9	25.8	0.10	0.49	0.26	5.1	1.9	0.81	0.66	376.5	9.4	2112	35	2.091	0.899	24	8.05	10.66	375.33	1653.69	186.41	1850.8	3.04	4.64
Nutrients added	31	0.9	25.8	0.10	0.69	0.20	5.8	7.2	6.16	1.42	376.5	9.4	2112	38	1.353	1.017	24	8.05	10.66	375.33	1653.69	186.41	1850.8	3.04	4.64
CO2 added	31	0.9	25.8	0.10	0.49	0.26	5.1	1.9	0.81	0.66	761.1	18.8	2112	35	0.714	0.557	24	7.79	21.56	758.73	1833.73	113.39	1968.7	1.85	2.82
Nutrients and CO2 added	31	0.9	25.8	0.10	0.69	0.20	5.8	7.2	6.16	1.42	761.1	18.8	2112	38	1.282	0.789	24	7.79	21.56	758.73	1833.73	113.39	1968.7	1.85	2.82