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Rivest, Emily B; Hofmann, Gretchen E (2014): Responses of the metabolism of the larvae of Pocillopora damicornis to ocean acidification and warming. PANGAEA, https://doi.org/10.1594/PANGAEA.835576

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Abstract:
Ocean acidification and warming are expected to threaten the persistence of tropical coral reef ecosystems. As coral reefs face multiple stressors, the distribution and abundance of corals will depend on the successful dispersal and settlement of coral larvae under changing environmental conditions. To explore this scenario, we used metabolic rate, at holobiont and molecular levels, as an index for assessing the physiological plasticity of Pocillopora damicornis larvae from this site to conditions of ocean acidity and warming. Larvae were incubated for 6 hours in seawater containing combinations of CO2 concentration (450 and 950 µatm) and temperature (28 and 30°C). Rates of larval oxygen consumption were higher at elevated temperatures. In contrast, high CO2 levels elicited depressed metabolic rates, especially for larvae released later in the spawning period. Rates of citrate synthase, a rate-limiting enzyme in aerobic metabolism, suggested a biochemical limit for increasing oxidative capacity in coral larvae in a warming, acidifying ocean. Biological responses were also compared between larvae released from adult colonies on the same day (cohorts). The metabolic physiology of Pocillopora damicornis larvae varied significantly by day of release. Additionally, we used environmental data collected on a reef in Moorea, French Polynesia to provide information about what adult corals and larvae may currently experience in the field. An autonomous pH sensor provided a continuous time series of pH on the natal fringing reef. In February/March, 2011, pH values averaged 8.075±0.023. Our results suggest that without adaptation or acclimatization, only a portion of naïve Pocillopora damicornis larvae may have suitable metabolic phenotypes for maintaining function and fitness in an end-of-the century ocean.
Related to:
Rivest, Emily B; Hofmann, Gretchen E (2014): Responses of the Metabolism of the Larvae of Pocillopora damicornis to Ocean Acidification and Warming. PLoS ONE, 9(4), e96172, https://doi.org/10.1371/journal.pone.0096172
Other version:
Rivest, Emily B (2014): MCR LTER: Coral Reef: Coral Larval Metabolism in pH and Temperature Treatments. Moorea Coral Reef LTER, http://metacat.lternet.edu/knb/metacat/knb-lter-mcr.2008.2/lter
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
Coverage:
Latitude: -17.480300 * Longitude: -149.798900
Date/Time Start: 2011-03-13T00:00:00 * Date/Time End: 2011-03-15T00:00:00
Event(s):
Moorea_OA * Latitude: -17.480300 * Longitude: -149.798900 * Date/Time Start: 2011-03-04T00:00:00 * Date/Time End: 2011-03-14T00:00:00 * Device: Experiment (EXP)
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 2014-09-03.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1SpeciesSpeciesRivest, Emily B
2Duration, number of daysDurationdaysRivest, Emily B
3TreatmentTreatRivest, Emily B
4ReplicateReplicateRivest, Emily B
5Oxygen consumption per individualO2 con/indnmol/#/minRivest, Emily B
6Oxygen consumption, per proteinO2 con/proteinµmol/g/minRivest, Emily Bper holobiont protein
7Proteins per individualProt/indµg/#Rivest, Emily Bholobiont
8Citrate synthase activity per individualCitrate synthase activity/indµmol/min/#Rivest, Emily B
9Citrate synthase activity per proteinCS act/proteinnmol/min/mgRivest, Emily Bper animal protein
10Proteins per individualProt/indµg/#Rivest, Emily Banimal
11DATE/TIMEDate/TimeGeocode
12Temperature, waterTemp°CRivest, Emily Blow
13Temperature, waterTemp°CRivest, Emily Bhigh
14Oxygen consumption per individualO2 con/indnmol/#/minRivest, Emily Bat low temperature
15Oxygen consumption per individualO2 con/indnmol/#/minRivest, Emily Bat high temperature
16Factor quantifying temperature dependent change of rates of processesQ10Rivest, Emily Boxygen consumption per larva
17DifferenceDiffRivest, Emily Bdelta Q10, oxygen consumption per larva
18Oxygen consumption, per proteinO2 con/proteinµmol/g/minRivest, Emily Bat low temperature, per holobiont protein
19Oxygen consumption, per proteinO2 con/proteinµmol/g/minRivest, Emily Bat high temperature, per holobiont protein
20Factor quantifying temperature dependent change of rates of processesQ10Rivest, Emily Boxygen consumption per total holobiont protein
21DifferenceDiffRivest, Emily Bdelta Q10, oxygen consumption per total holobiont protein
22Citrate synthase activity per individualCitrate synthase activity/indµmol/min/#Rivest, Emily Bat low temperature
23Citrate synthase activity per individualCitrate synthase activity/indµmol/min/#Rivest, Emily Bat high temperature
24Factor quantifying temperature dependent change of rates of processesQ10Rivest, Emily Bcitrate synthase activity per larva
25DifferenceDiffRivest, Emily Bdelta Q10, citrate synthase activity per larva
26Citrate synthase activity per proteinCS act/proteinnmol/min/mgRivest, Emily Bat low temperature, per animal protein
27Citrate synthase activity per proteinCS act/proteinnmol/min/mgRivest, Emily Bat high temperature, per animal protein
28Factor quantifying temperature dependent change of rates of processesQ10Rivest, Emily Bcitrate synthase activity per total animal protein
29DifferenceDiffRivest, Emily Bdelta Q10, citrate synthase activity per total animal protein
30Temperature, waterTemp°CRivest, Emily B
31Temperature, water, standard errorT std e±Rivest, Emily B
32SalinitySalRivest, Emily B
33Salinity, standard errorSal std e±Rivest, Emily B
34pHpHRivest, Emily BSpectrophotometrictotal scale
35Alkalinity, totalATµmol/kgRivest, Emily BPotentiometric titration
36Alkalinity, total, standard errorAT std e±Rivest, Emily BPotentiometric titration
37Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmRivest, Emily BCalculated using CO2calc
38Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard errorpCO2water_SST_wet std e±Rivest, Emily BCalculated using CO2calc
39Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
43Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
44Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
45Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
46Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
47Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
2020 data points

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