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Seawater carbonate chemistry and net calcification of Porites, Zoanthus growth and maximum PSII efficiency of Porites and Zoanthus

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Bibliographic Details
Title: Seawater carbonate chemistry and net calcification of Porites, Zoanthus growth and maximum PSII efficiency of Porites and Zoanthus
Authors: Doucette, Violet E, Rodriguez Bravo, Lucia M, Altieri, Andrew H, Johnson, Maggie Dorothy
Publisher Information: PANGAEA
Publication Year: 2022
Collection: PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen)
Subject Terms: Alkalinity, total, standard deviation, Animalia, Aragonite saturation state, Benthic animals, Benthos, Bicarbonate ion, Bottles or small containers/Aquaria (<20 L), Calcification/Dissolution, Calcification rate of calcium carbonate, Calcite saturation state, Calculated using seacarb, Calculated using seacarb after Nisumaa et al. (2010), Calculated using seacarb after Orr et al. (2018), Carbon, inorganic, dissolved, Carbonate ion, Carbonate system computation flag, Carbon dioxide, Cnidaria, Coast and continental shelf, EXP, Experiment, Fragments, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Fugacity of carbon dioxide in seawater, Growth/Morphology, Identification
Subject Geographic: LATITUDE: 9.349060 * LONGITUDE: -82.258300
Description: Ocean acidification (OA) threatens the persistence of reef-building corals and the habitat they provide. While species-specific effects of OA on marine organisms could have cascading effects on ecological interactions like competition, few studies have identified how benthic reef competitors respond to OA. We explored how two common Caribbean competitors, branching Porites and a colonial zoanthid (Zoanthus), respond to the factorial combination of OA and competition. In the laboratory, we exposed corals, zoanthids and interacting corals and zoanthids to ambient (8.01 ± 0.03) and OA (7.68 ± 0.07) conditions for 60 days. The OA treatment had no measured effect on zoanthids or coral calcification but decreased Porites maximum PSII efficiency. Conversely, the competitive interaction significantly decreased Porites calcification but had minimal-to-no countereffects on the zoanthid. Although this interaction was not exacerbated by the 60-day OA exposure, environmental changes that enhance zoanthid performance could add to the dominance of zoanthids over corals. The lack of effects of OA on coral calcification indicates that near-term competitive interactions may have more immediate consequences for some corals than future global change scenarios. Disparate consequences of competition have implications for community structure and should be accounted for when evaluating local coral reef trajectories.
Document Type: dataset
File Description: text/tab-separated-values, 22876 data points
Language: English
Relation: Doucette, Violet E; Rodriguez Bravo, Lucia M; Altieri, Andrew H; Johnson, Maggie Dorothy (2022): Negative effects of a zoanthid competitor limit coral calcification more than ocean acidification. Royal Society Open Science, 9(11), 220760, https://doi.org/10.1098/rsos.220760; Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html; https://doi.pangaea.de/10.1594/PANGAEA.955456; https://doi.org/10.1594/PANGAEA.955456
DOI: 10.1594/PANGAEA.955456
Availability: https://doi.pangaea.de/10.1594/PANGAEA.955456
https://doi.org/10.1594/PANGAEA.955456
Rights: CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess
Accession Number: edsbas.E470C6DC
Database: BASE
Description
Abstract:Ocean acidification (OA) threatens the persistence of reef-building corals and the habitat they provide. While species-specific effects of OA on marine organisms could have cascading effects on ecological interactions like competition, few studies have identified how benthic reef competitors respond to OA. We explored how two common Caribbean competitors, branching Porites and a colonial zoanthid (Zoanthus), respond to the factorial combination of OA and competition. In the laboratory, we exposed corals, zoanthids and interacting corals and zoanthids to ambient (8.01 ± 0.03) and OA (7.68 ± 0.07) conditions for 60 days. The OA treatment had no measured effect on zoanthids or coral calcification but decreased Porites maximum PSII efficiency. Conversely, the competitive interaction significantly decreased Porites calcification but had minimal-to-no countereffects on the zoanthid. Although this interaction was not exacerbated by the 60-day OA exposure, environmental changes that enhance zoanthid performance could add to the dominance of zoanthids over corals. The lack of effects of OA on coral calcification indicates that near-term competitive interactions may have more immediate consequences for some corals than future global change scenarios. Disparate consequences of competition have implications for community structure and should be accounted for when evaluating local coral reef trajectories.
DOI:10.1594/PANGAEA.955456