Citation:

s00300-016-2044-5

Name: Seawater carbonate chemistry and metabolic data of Arctic pteropods in lab experiment
Published: 2017-05-11
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Animalia; Arctic; Behaviour; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; Limacina helicina; Limacina retroversa; Mollusca; Other metabolic rates; Pelagos; Polar; Respiration; Single species; Temperature; Zooplankton

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Abstract:

Thecosome pteropods are considered highly sensitive to ocean acidification. During the Arctic winter, increased solubility of CO2 in cold waters intensifies ocean acidification and food sources are limited. Ocean warming is also particularly pronounced in the Arctic. Here, we present the first data on metabolic rates of two pteropod species (Limacina helicina, Limacina retroversa) during the Arctic winter at 79°N (polar night/twilight phase). Routine oxygen consumption rates and the metabolic response [oxygen consumption (MO2), ammonia excretion (NH3), overall metabolic balance (O:N)] to elevated levels of pCO2 and temperature were examined. Our results suggest lower routine MO2 rates for both Limacina species in winter than in summer. In an 18-h experiment, both pCO2 and temperature affected MO2 of L. helicina and L. retroversa. After a 9-day experiment with L. helicina all three metabolic response variables were affected by the two factors with interactive effects in case of NH3 and O:N. The response resembled a “hormesis-type” pattern with up-regulation at intermediate pCO2 and the highest temperature level. For L. retroversa, NH3 excretion was affected by both factors and O:N only by temperature. No significant effects of pCO2 or temperature on MO2 were detected. Metabolic up-regulation will entail higher energetic costs that may not be covered during periods of food limitation such as the Arctic winter and compel pteropods to utilize storage compounds to a greater extent than usual. This may reduce the fitness and survival of overwintering pteropods and negatively impact their reproductive success in the following summer.

Keyword(s):

Animalia; Arctic; Behaviour; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; Limacina helicina; Limacina retroversa; Mollusca; Other metabolic rates; Pelagos; Polar; Respiration; Single species; Temperature; Zooplankton

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb

Project(s):

Biological Impacts of Ocean Acidification (BIOACID)

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, 2016) 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 by seacarb is 2017-05-10.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Lischka, Silke		study
2	Species	Species		Lischka, Silke
3	Registration number of species	Reg spec no		Lischka, Silke
4	Uniform resource locator/link to reference	URL ref		Lischka, Silke		WoRMS Aphia ID
5	Experiment	Exp		Lischka, Silke
6	Experiment duration	Exp duration	days	Lischka, Silke
7	Temperature, water	Temp	°C	Lischka, Silke
8	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lischka, Silke		treatment
9	Replicates	Repl	#	Lischka, Silke
10	Replicate	Repl		Lischka, Silke		number of organisms included per replicate
11	Dry mass	dm	µg	Lischka, Silke
12	Dry mass, standard deviation	Dry m std dev	±	Lischka, Silke
13	Oxygen consumption, per mass	MO2 con	µmol/g/h	Lischka, Silke
14	Oxygen consumption, standard deviation	O2 con std dev	±	Lischka, Silke
15	Ammonia excretion	NH3/[NH4]+ exc	µmol/g/h	Lischka, Silke
16	Ammonia excretion, standard deviation	NH3/[NH4]+ exc std dev	±	Lischka, Silke
17	Oxygen consumed/Nitrogen excreted ratio	O cons/N exc		Lischka, Silke
18	Oxygen consumed/nitrogen excreted ratio, standard deviation	O cons/N exc std dev	±	Lischka, Silke
19	Activity description	Activity		Lischka, Silke		activity scores
20	Diameter	Ø	µm	Lischka, Silke		shell size
21	Diameter, standard deviation	Ø std dev	±	Lischka, Silke		shell size
22	Alkalinity, total	AT	µmol/kg	Lischka, Silke		start
23	pH	pH		Lischka, Silke		total scale, start
24	pH	pH		Lischka, Silke		total scale, end
25	pH, standard deviation	pH std dev	±	Lischka, Silke		total scale, end
26	Carbon, inorganic, dissolved	DIC	µmol/kg	Lischka, Silke		start
27	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lischka, Silke		start
28	Aragonite saturation state	Omega Arg		Lischka, Silke		start
29	Salinity	Sal		Lischka, Silke
30	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
31	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	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)
33	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)
34	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	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:

1267 data points

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