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Enochs, I C; Manzello, Derek P; Donham, E M; Kolodziej, Graham; Okano, R; Johnston, Lyza; Young, Craig S; Iguel, John; Edwards, C B; Fox, M D; Valentino, L; Johnson, Steven; Benavente, D; Clark, S J; Carlton, R; Burton, T; Eynaud, Y; Price, Nichole N (2015): Shift from coral to macroalgae dominance on a volcanically acidified reef [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.867324, Supplement to: Enochs, IC et al. (2015): Shift from coral to macroalgae dominance on a volcanically acidified reef. Nature Climate Change, 5(12), 1083-1088, https://doi.org/10.1038/nclimate2758

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Abstract:
Rising anthropogenic CO2 in the atmosphere is accompanied by an increase in oceanic CO2 and a concomitant decline in seawater pH (ref. 1). This phenomenon, known as ocean acidification (OA), has been experimentally shown to impact the biology and ecology of numerous animals and plants2, most notably those that precipitate calcium carbonate skeletons, such as reef-building corals3. Volcanically acidified water at Maug, Commonwealth of the Northern Mariana Islands (CNMI) is equivalent to near-future predictions for what coral reef ecosystems will experience worldwide due to OA. We provide the first chemical and ecological assessment of this unique site and show that acidification-related stress significantly influences the abundance and diversity of coral reef taxa, leading to the often-predicted shift from a coral to an algae-dominated state4, 5. This study provides field evidence that acidification can lead to macroalgae dominance on reefs.
Keyword(s):
Benthos; CO2 vent; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; North Pacific; Rocky-shore community; Tropical
Original version:
Enochs, I C; Manzello, Derek P; Donham, E M; Kolodziej, Graham; Okano, R; Johnston, Lyza; Young, Craig S; Iguel, John; Edwards, C B; Fox, M D; Valentino, L; Johnson, Steven; Benavente, D; Clark, S J; Carlton, R; Burton, T; Eynaud, Y; Price, Nichole N (2016): Bottom water temperature, salinity, pH, benthic cover, dissolved inorganic carbon and other data collected from NOAA Ship HI'IALAKAI and other in Northern Marianna Islands from 2014-05-17 to 2014-08-13 (NCEI Accession 0138649). Version 1.1. NOAA National Centers for Environmental Information, https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.nodc:0138649
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: 20.016670 * Longitude: 145.216670
Event(s):
Maug_Island * Latitude: 20.016670 * Longitude: 145.216670 * Method/Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2016-10-28.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeEnochs, I Cstudy
2IdentificationIDEnochs, I C
3NameNameEnochs, I CPhoto
4SiteSiteEnochs, I C
5IndividualsInd#Enochs, I CCoral
6IndividualsInd#Enochs, I CMacroalgae
7IndividualsInd#Enochs, I CCoralline Algae
8IndividualsInd#Enochs, I CSand, pavement, rubble
9IndividualsInd#Enochs, I CTape, wand, shadow
10IndividualsInd#Enochs, I CNumber of points classified in image
11IndividualsInd#Enochs, I CBare cabonate (BC)
12IndividualsInd#Enochs, I CCoral (general) (CORAL)
13IndividualsInd#Enochs, I CCalcified Macroalgae (CMA)
14IndividualsInd#Enochs, I CFleshy Macroalgae (FMA)
15IndividualsInd#Enochs, I CTurf (TURF)
16IndividualsInd#Enochs, I CCrustose Coralline Algae (CCA)
17IndividualsInd#Enochs, I CSand (S)
18IndividualsInd#Enochs, I CTape (TAPE)
19SalinitySalEnochs, I C
20Temperature, waterTemp°CEnochs, I C
21Alkalinity, totalATµmol/kgEnochs, I C
22Carbon, inorganic, dissolvedDICµmol/kgEnochs, I C
23Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
25Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Calcite saturation stateOmega CalYang, YanCalculated 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:
9300 data points

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