Biogeosciences
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Articles | Volume 18, issue 19
Articles | Volume 18, issue 19
https://doi.org/10.5194/bg-18-5313-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5313-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 19
Research article
 | 
01 Oct 2021
Research article |  | 01 Oct 2021

Tolerance of tropical marine microphytobenthos exposed to elevated irradiance and temperature

Sazlina Salleh and Andrew McMinn

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Short summary
The benthic diatom communities in Tanjung Rhu, Malaysia, were regularly exposed to high light and temperature variability during the tidal cycle, resulting in low photosynthetic efficiency. We examined the impact of high temperatures on diatoms' photosynthetic capacities, and temperatures beyond 50 °C caused severe photoinhibition. At the same time, those diatoms exposed to temperatures of 40 °C did not show any sign of photoinhibition.
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