Data Description

Citation:
Appelhans, Yasmin S; Thomsen, Jörn; Opitz, Stephan; Pansch, Christian; Melzner, Frank; Wahl, Martin; Yang, Yan (2014): Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential. doi:10.1594/PANGAEA.836847,
Supplement to: Appelhans, Yasmin S; Thomsen, Jörn; Opitz, Stephan; Pansch, Christian; Melzner, Frank; Wahl, Martin (2014): Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential. Marine Ecology Progress Series, 509, 227-239, doi:10.3354/meps10884
Abstract:
Ocean acidification has the potential to affect growth and calcification of benthic marine invertebrates, particularly during their early life history. We exposed field-collected juveniles of Asterias rubens from Kiel Fjord (western Baltic Sea) to 3 seawater CO2 partial pressure (pCO2) levels (ranging from around 650 to 3500 µatm) in a long-term (39 wk) and a short-term (6 wk) experiment. In both experiments, survival and calcification were not affected by elevated pCO2. However, feeding rates decreased strongly with increasing pCO2, while aerobic metabolism and NH4+ excretion were not significantly affected by CO2 exposure. Consequently, high pCO2 reduced the scope for growth in A. rubens. Growth rates decreased substantially with increasing pCO2 and were reduced even at pCO2 levels occurring in the habitat today (e.g. during upwelling events). Sea stars were not able to acclimate to higher pCO2, and growth performance did not recover during the long-term experiment. Therefore, the top-down control exerted by this keystone species may be diminished during periods of high environmental pCO2 that already occur occasionally and will be even higher in the future. However, some individuals were able to grow at high rates even at high pCO2, indicating potential for rapid adaption. The selection of adapted specimens of A. rubens in this seasonally acidified habitat may lead to higher CO2 tolerance in adult sea stars of this population compared to the juvenile stage. Future studies need to address the synergistic effects of multiple stressors such as acidification, warming and reduced salinity, which will simultaneously impact the performance of sea stars in this habitat.
Further details:
Lavigne, Héloise; 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):
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 2014-10-17.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Figure *FigThomsen, Jörn *
2Experiment *ExpThomsen, Jörn *
3Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmThomsen, Jörn *treatment
4Incubation duration *Inc durweeksThomsen, Jörn *
5Mass *MassgThomsen, Jörn *fresh
6Confidence interval *CIThomsen, Jörn *95%, fresh mass
7Food consumption *Food conmg/dayThomsen, Jörn *Mytilus edulis
8Confidence interval *CIThomsen, Jörn *95%, food consumption
9Size *SizemmThomsen, Jörn *
10Individuals *Ind#Thomsen, Jörn *consumed mussels
11Confidence interval *CIThomsen, Jörn *95%, number of consumed mussels
12Food consumption *Food conmg/weekThomsen, Jörn *Mytilus edulis
13Confidence interval *CIThomsen, Jörn *95%, food consumption
14Scope for growth *SfGJThomsen, Jörn *
15Confidence interval *CIThomsen, Jörn *95%, scope for growth
16Energy, work, quantity of heat *EnergyJThomsen, Jörn *equivalent to sea star growth
17Energy, work, quantity of heat *EnergyJThomsen, Jörn *equivalent of consumed mussels
18Carbon, inorganic, dissolved *DICµmol/kgThomsen, Jörn *Coulometric titration *
19Carbon, inorganic, dissolved, standard deviation *DIC std dev±Thomsen, Jörn *Coulometric titration *
20pH *pHThomsen, Jörn *Potentiometric *total scale
21pH, standard deviation *pH std dev±Thomsen, Jörn *Potentiometric *total scale
22Temperature, water *Temp°CThomsen, Jörn *
23Temperature, water, standard deviation *Temp std dev±Thomsen, Jörn *
24Salinity *SalThomsen, Jörn *
25Salinity, standard deviation *Sal std dev±Thomsen, Jörn *
26Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmThomsen, Jörn *Calculated using CO2SYS *
27Partial pressure of carbon dioxide, standard deviation *pCO2 std dev±Thomsen, Jörn *Calculated using CO2SYS *
28Alkalinity, total *ATµmol/kgThomsen, Jörn *Calculated using CO2SYS *
29Alkalinity, total, standard deviation *AT std dev±Thomsen, Jörn *Calculated using CO2SYS *
30Aragonite saturation state *Omega ArgThomsen, Jörn *Calculated using CO2SYS *
31Aragonite saturation state, standard deviation *Omega Arg std dev±Thomsen, Jörn *Calculated using CO2SYS *
32Calcite saturation state *Omega CalThomsen, Jörn *Calculated using CO2SYS *
33Calcite saturation state, standard deviation *Omega Cal std dev±Thomsen, Jörn *Calculated using CO2SYS *
34Carbonate system computation flag *CSC flagYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
35Carbon dioxide *CO2µmol/kgYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
36Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
37Fugacity of carbon dioxide (water) at sea surface temperature (wet air) *fCO2water_SST_wetµatmYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
38Bicarbonate ion *[HCO3]-µmol/kgYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
39Carbonate ion *[CO3]2-µmol/kgYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
40Alkalinity, total *ATµmol/kgYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
41Aragonite saturation state *Omega ArgYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
42Calcite saturation state *Omega CalYang, Yan *Calculated using seacarb after Nisumaa et al. (2010) *
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4215 data points

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