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Seawater carbonate chemistry and skeletal density of hardground-forming high-latitude Crustose Coralline Algae

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Bibliographic Details
Title: Seawater carbonate chemistry and skeletal density of hardground-forming high-latitude Crustose Coralline Algae
Authors: Williams, Branwen, Chan, P T W, Westfield, Isaac T, Rasher, D B, Ries, Justin B
Publisher Information: PANGAEA
Publication Year: 2021
Collection: PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen)
Subject Terms: Adak_Island_OA, Alkalinity, total, Aragonite saturation state, Benthos, Bicarbonate ion, standard error, Calcification/Dissolution, Calcite saturation state, Calculated using CO2SYS, Calculated using seacarb after Nisumaa et al. (2010), Carbon, inorganic, dissolved, Carbonate ion, Carbonate system computation flag, Carbon dioxide, Clathromorphum compactum, Clathromorphum nereostratum, Coast and continental shelf, Containers and aquaria (20-1000 L or < 1 m**2), Coulometric titration, Density, Event label, EXP, Experiment, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Gulf_of_Maine_OA, Identification, Laboratory experiment
Subject Geographic: MEDIAN LATITUDE: 48.107867 * MEDIAN LONGITUDE: 122.276964 * SOUTH-BOUND LATITUDE: 44.431591 * WEST-BOUND LONGITUDE: 68.121289 * NORTH-BOUND LATITUDE: 51.784143 * EAST-BOUND LONGITUDE: 176.432640
Description: Crustose coralline algae (CCA) function as foundation species by creating marine carbonate hardground habitats. High‐latitude species may be vulnerable to regional warming and acidification. Here, we report the results of an experiment investigating the impacts of CO2‐induced acidification (pCO2 350, 490, 890, 3200 µatm) and temperature (6.5, 8.5, 12.5°C) on the skeletal density of two species of high‐latitude CCA: Clathromorphum compactum (CC) and C. nereostratum (CN). Skeletal density of both species significantly declined with pCO2. In CN, the density of previously deposited skeleton declined in the highest pCO2 treatment. This species was also unable to precipitate new skeleton at 12.5°C, suggesting that CN will be particularly sensitive to future warming and acidification. The decline in skeletal density exhibited by both species under future pCO2 conditions could reduce their skeletal strength, potentially rendering them more vulnerable to disturbance, and impairing their production of critical habitat in high‐latitude systems.
Document Type: dataset
File Description: text/tab-separated-values, 24264 data points
Language: English
Relation: Williams, Branwen; Chan, P T W; Westfield, Isaac T; Rasher, D B; Ries, Justin B (2021): Ocean Acidification Reduces Skeletal Density of Hardground-Forming High-Latitude Crustose Coralline Algae. Geophysical Research Letters, 48(5), https://doi.org/10.1029/2020GL091499; Anagnostou, Eleni; Williams, Branwen; Westfield, Isaac T; Foster, Gavin L; Ries, Justin B (2020): Controlled laboratory experiments on red alga Clathromorphum compactum [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.912901; Williams, Branwen; Rasher, D B; Ries, Justin B (2021): Skeletal density for crustose coralline algae reared in natural and experimental temperature and pCO2 conditions [dataset]. Biological and Chemical Oceanography Data Management Office (BCO-DMO), https://doi.org/10.26008/1912/bco-dmo.836975.1; 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.935477; https://doi.org/10.1594/PANGAEA.935477
DOI: 10.1594/PANGAEA.935477
Availability: https://doi.pangaea.de/10.1594/PANGAEA.935477
https://doi.org/10.1594/PANGAEA.935477
Rights: CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess
Accession Number: edsbas.2E016168
Database: BASE
Description
Abstract:Crustose coralline algae (CCA) function as foundation species by creating marine carbonate hardground habitats. High‐latitude species may be vulnerable to regional warming and acidification. Here, we report the results of an experiment investigating the impacts of CO2‐induced acidification (pCO2 350, 490, 890, 3200 µatm) and temperature (6.5, 8.5, 12.5°C) on the skeletal density of two species of high‐latitude CCA: Clathromorphum compactum (CC) and C. nereostratum (CN). Skeletal density of both species significantly declined with pCO2. In CN, the density of previously deposited skeleton declined in the highest pCO2 treatment. This species was also unable to precipitate new skeleton at 12.5°C, suggesting that CN will be particularly sensitive to future warming and acidification. The decline in skeletal density exhibited by both species under future pCO2 conditions could reduce their skeletal strength, potentially rendering them more vulnerable to disturbance, and impairing their production of critical habitat in high‐latitude systems.
DOI:10.1594/PANGAEA.935477