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Melzner, Frank; Findeisen, Ulrike; Bock, Christian; Panknin, Ulrike; Kiko, Rainer; Hiebenthal, Claas; Lenz, Mark; Wall, Marlene (2022): Experiment on the response of the sea star Asterias rubens to heat stress and ocean acidification: experiment 4: PO2 gradients between seawater and coelomic fluid at acutely altered temperatures [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949420, In: Melzner, F et al. (2022): Response of the sea star Asterias rubens to heat stress and ocean acidification: long-term and short-term experimental data [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.949426

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Abstract:
Robust estimates of marine species vulnerability to ongoing climate change require realistic stressor experiments. Here, we subjected an important coastal predator, the sea star Asterias rubens, to projected warming and ocean acidification over an annual seasonal cycle. Warming and, less so, acidification, had strongly season-specific impacts on animal energy budgets. Specifically, simulated future summer temperatures caused >95% sea star mortality, reduced feeding rate and body mass loss. Additional acute experiments demonstrated that respiratory oxygen flux was preferentially directed to support high summer metabolism at the expense of feeding-related processes. Using 15 years of field temperature data and end of century warming projections, we estimate that potentially lethal summer heat waves will occur in 20% of future years. Our study demonstrates the importance of assessing stress responses along seasonal thermal cycles and the high selective force that future summer heat waves likely can exert on coastal marine animal populations.
Keyword(s):
Asterias rubens; Baltic Sea; oxygen diffusion; sea star; Temperature
Project(s):
Climate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)
Cluster of Excellence: The Future Ocean (FutureOcean)
Sub-seabed CO2 Storage: Impact on Marine Ecosystems (ECO2)
Funding:
German Research Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
German Research Foundation (DFG), grant/award no. EXC 80: The Future Ocean
Seventh Framework Programme (FP7), grant/award no. 265847: Sub-seabed CO2 Storage: Impact on Marine Ecosystems
Coverage:
Date/Time Start: 2018-05-09T00:00:00 * Date/Time End: 2018-08-29T00:00:00
Comment:
Figure 4b
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 ExperimentExpMelzner, Frank
2 SpeciesSpeciesMelzner, Frank
3 DATE/TIMEDate/TimeMelzner, FrankGeocode – sampled
4 DateDateMelzner, Frankmeasured
5 Temperature, waterTemp°CMelzner, Frank
6 SalinitySalMelzner, Frankseawater
7 Oxygen, partial pressurepO2kPaMelzner, Frankseawater
8 Gonadosomatic indexGSI%Melzner, Frankof wet mass
9 Δ oxygen, partial pressureΔpO2kPaMelzner, Franksw-cf: seawater oxygen partial pressure minus coelomic fluid oxygen partial pressure
10 IdentificationIDMelzner, Frankanimal ID
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
315 data points

Data

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

1 
Exp		2 
Species		3 
Date/Time		4 
Date		5 
Temp [°C]		6 
Sal		7 
pO2 [kPa]		8 
GSI [%]		9 
ΔpO2 [kPa]		10 
ID
4Asterias rubens2018-05-092018-05-23611.321.017.67.31
4Asterias rubens2018-05-092018-05-23611.321.06.48.22
4Asterias rubens2018-05-092018-05-23811.321.17.39.93
4Asterias rubens2018-05-092018-05-23811.421.09.99.24
4Asterias rubens2018-05-092018-05-231011.321.16.57.75
4Asterias rubens2018-05-092018-05-231011.321.28.111.66
4Asterias rubens2018-05-092018-05-231211.320.920.710.07
4Asterias rubens2018-05-092018-05-231211.321.24.810.98
4Asterias rubens2018-05-092018-05-231411.421.26.413.49
4Asterias rubens2018-05-092018-05-231411.321.113.310.710
4Asterias rubens2018-05-092018-05-231611.320.97.311.011
4Asterias rubens2018-05-092018-05-231611.321.09.911.812
4Asterias rubens2018-05-092018-05-231811.321.013.812.913
4Asterias rubens2018-05-092018-05-231811.421.35.811.514
4Asterias rubens2018-05-092018-05-232011.420.97.514.715
4Asterias rubens2018-05-092018-05-232211.320.97.914.616
4Asterias rubens2018-05-092018-05-232211.321.011.014.217
4Asterias rubens2018-08-292018-09-15617.421.20.14.118
4Asterias rubens2018-08-292018-09-15617.421.10.51.819
4Asterias rubens2018-08-292018-09-15817.421.10.13.820
4Asterias rubens2018-08-292018-09-15817.421.01.53.021
4Asterias rubens2018-08-292018-09-15817.520.90.33.522
4Asterias rubens2018-08-292018-09-151217.421.30.13.523
4Asterias rubens2018-08-292018-09-151217.421.10.14.024
4Asterias rubens2018-08-292018-09-151217.421.00.86.225
4Asterias rubens2018-08-292018-09-151617.420.90.48.626
4Asterias rubens2018-08-292018-09-151617.421.10.78.827
4Asterias rubens2018-08-292018-09-151617.420.90.45.328
4Asterias rubens2018-08-292018-09-152017.521.10.78.429
4Asterias rubens2018-08-292018-09-152017.421.20.37.030
4Asterias rubens2018-08-292018-09-152217.421.10.87.331
4Asterias rubens2018-08-292018-09-152217.421.10.810.932
4Asterias rubens2018-08-292018-09-152217.420.90.58.433
4Asterias rubens2018-08-292018-09-152417.421.00.39.634
4Asterias rubens2018-08-292018-09-152417.421.10.510.235