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Fish heating tolerance scales similarly across individual physiology and populations


Payne, NL and Morley, SA and Halsey, LG and Smith, JA and Stuart-Smith, R and Waldock, C and Bates, AE, Fish heating tolerance scales similarly across individual physiology and populations, Communications Biology, 4, (1) Article 264. ISSN 2399-3642 (2021) [Refereed Article]

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The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons Attribution 4.0 International (CC BY 4.0) licence, ( and indicate if changes were made

DOI: doi:10.1038/s42003-021-01773-3


Extrapolating patterns from individuals to populations informs climate vulnerability models, yet biological responses to warming are uncertain at both levels. Here we contrast data on the heating tolerances of fishes from laboratory experiments with abundance patterns of wild populations. We find that heating tolerances in terms of individual physiologies in the lab and abundance in the wild decline with increasing temperature at the same rate. However, at a given acclimation temperature or optimum temperature, tropical individuals and populations have broader heating tolerances than temperate ones. These congruent relationships implicate a tight coupling between physiological and demographic processes underpinning macroecological patterns, and identify vulnerability in both temperate and tropical species.

Item Details

Item Type:Refereed Article
Keywords:physiology, climate change, SST, reef fish
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine biodiversity
UTAS Author:Stuart-Smith, R (Dr Rick Stuart-Smith)
ID Code:145248
Year Published:2021
Web of Science® Times Cited:7
Deposited By:Ecology and Biodiversity
Deposited On:2021-07-13
Last Modified:2021-11-22
Downloads:6 View Download Statistics

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