Elemental stoichiometry for Emiliania huxleyi across a range of 12 temperatures from 8.5-28.6C
Hutchins, David A.
MetadataShow full item record
KeywordThermal Performance Curves; Growth Rates; Emiliania huxleyi; Climate change; Calcification; Elemental quotas
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
Dataset: Ehux elemental composition across thermal range
Suggested CitationDataset: Hutchins, David A., "Elemental stoichiometry for Emiliania huxleyi across a range of 12 temperatures from 8.5-28.6C", 2020-04-30, DOI:10.26008/1912/bco-dmo.782921.1, https://hdl.handle.net/1912/25719
Showing items related by title, author, creator and subject.
Kendrick, B. Jacob; DiTullio, Giacomo R.; Cyronak, Tyler J.; Fulton, James M.; Van Mooy, Benjamin A. S.; Bidle, Kay D. (Public Library of Science, 2014-11-18)Annual Emiliania huxleyi blooms (along with other coccolithophorid species) play important roles in the global carbon and sulfur cycles. E. huxleyi blooms are routinely terminated by large, host-specific dsDNA viruses, ...
Consequences of strain variability and calcification in Emiliania huxleyi on microzooplankton grazing Harvey, Elizabeth L.; Bidle, Kay D.; Johnson, Matthew D. (2015-08-04)Microzooplankton are the main consumers of marine phytoplankton. Intrinsic traits of phytoplankton can reduce grazing mortality, directly influencing phytoplankton population dynamics, food web ecology, and biogeochemical ...
The effect of nitrate and phosphate availability on Emiliania huxleyi (NZEH) physiology under different CO2 scenarios Rouco, Monica; Branson, Oscar; Lebrato, Mario; Iglesias-Rodriguez, M. Debora (Frontiers Media, 2013-06-18)Growth and calcification of the marine coccolithophorid Emiliania huxleyi is affected by ocean acidification and macronutrients limitation and its response varies between strains. Here we investigated the physiological ...