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Melbourne, Leanne; Schmidt, Daniela N; Sarkar, Suman (2025): Assessing structural integrity responses of coralline algae across the PETM [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.978487 (DOI registration in progress)

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Published: 2025-04-29

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Abstract:
Coralline red algae are key benthic components of shallow-marine ecosystems, which globally support high levels of biodiversity. Modern short term experiments show negative responses of coralline algae to warming and higher CO2, in which a weakening of structural integrity is seen. However, short-term experiments do not account for acclimation and multi-generation exposure. The geological record allows for us to assess responses to long-term enivronmental change and account for acclimation and multi-generation exposure. We measured the cellular structure in species of two cosmopolitan genera, Sporolithon and Lithothamnion, from Meghalaya, NE India (Eastern Tethys), before and during the Palaeocene-Eocene Thermal Maximum (PETM, ~55.8 Ma), the most pronounced hyperthermal, a geologically abrupt environmental change in Earth history characterized by rapid ocean warming, acidification and sea level rise of the Cenozoic.
Keyword(s):
cell measurements; coralline algae; environmental change; PETM; resilience; structural integrity
Funding:
Leverhulme Trust, grant/award no. RF-2021-489\4: Leverhulme Trust
The Royal Society, grant/award no. NIF\R1\181330: Royal Society-SERB Newton International Fellowship
The Royal Society, grant/award no. Wolfson Merit Award: Royal Society Wolfson Research Merit Award
Coverage:
Latitude: 25.261783 * Longitude: 91.710433
Date/Time Start: 2015-12-03T00:00:00 * Date/Time End: 2020-02-19T00:00:00
Event(s):
MCCL_1-162 * Latitude: 25.261783 * Longitude: 91.710433 * Date/Time Start: 2015-12-03T00:00:00 * Date/Time End: 2020-02-19T00:00:00 * Location: Mawmluh, Meghalaya, India * Comment: Limestones
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Melbourne, L; Schmidt, DN; Sarkar, S (2025): Lithothamnion roveretoi structural integrity responses across the PETM. https://doi.pangaea.de/10.1594/PANGAEA.979399
  2. Melbourne, L; Schmidt, DN; Sarkar, S (2025): Sporolithon aschersonii structural integrity responses across the PETM. https://doi.pangaea.de/10.1594/PANGAEA.979400
  3. Melbourne, L; Schmidt, DN; Sarkar, S (2025): Sporolithon sp1 structural integrity responses across the PETM. https://doi.pangaea.de/10.1594/PANGAEA.979401
  4. Melbourne, L; Schmidt, DN; Sarkar, S (2025): Sporolithon sp2 structural integrity responses across the PETM. https://doi.pangaea.de/10.1594/PANGAEA.979402