Title: Elemental stoichiometry for Emiliania huxleyi across a range of 12 temperatures from 8.5-28.6C

Type Dataset Hutchins, David A. (2020-04-30): Elemental stoichiometry for Emiliania huxleyi across a range of 12 temperatures from 8.5-28.6C. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu. Dataset. https://darchive.mblwhoilibrary.org/handle/1912/25719

Author: Hutchins, David A. ;

Links

• Item record in Woods Hole Open Access Server
• Digital object URL

Summary

This dataset includes elemental stoichiometry for Emiliania huxleyi across a range of 12 temperatures from 8.5-28.6C. Global warming will be combined with predicted increases in thermal variability in the future surface ocean, but how temperature dynamics will affect phytoplankton biology and biogeochemistry is largely unknown. Here, we examine the responses of the globally important marine coccolithophore Emiliania huxleyi to thermal variations at two frequencies (1 d and 2 d) at low (18.5 °C) and high (25.5 °C) mean temperatures. Elevated temperature and thermal variation decreased growth, calcification and physiological rates, both individually and interactively. The 1 d thermal variation frequencies were less inhibitory than 2 d variations under high temperatures, indicating that high-frequency thermal fluctuations may reduce heat-induced mortality and mitigate some impacts of extreme high-temperature events. Cellular elemental composition and calcification was significantly affected by both thermal variation treatments relative to each other and to the constant temperature controls. The negative effects of thermal variation on E. huxleyi growth rate and physiology are especially pronounced at high temperatures. These responses of the key marine calcifier E. huxleyi to warmer, more variable temperature regimes have potentially large implications for ocean productivity and marine biogeochemical cycles under a future changing climate. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/782921

More information

• URI: https://hdl.handle.net/1912/25719
• DOI: 10.26008/1912/bco-dmo.782921.1
• Language: en_US

Subjects

• Thermal Performance Curves, Growth Rates, Emiliania huxleyi, Climate change, Calcification, Elemental quotas

Dates

• accessioned: April 30, 2020
• available: April 30, 2020
• created: November 26, 2019
• Publication date: April 30, 2020
• coverage: Note: 20170101 - 20171031 (UTC)

Notes

Rights

• Creative Commons Attribution 4.0
• https://creativecommons.org/licenses/by/4.0/

Funding Information

Format

electronic resource

Locations

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