Physiological performance and thermal tolerance of major Red Sea macrophytes
As anthropogenically-forced ocean temperatures continue to rise, the physiological response of marine macrophytes becomes exceedingly relevant. The Red Sea is a semi-isolated sea- the warmest in the world (SST up to 34°C) - already exhibiting signs of rapid warming rates exceeding those of other tro...
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ftdatacite:10.25781/kaust-97ary 2023-05-15T17:51:20+02:00 Physiological performance and thermal tolerance of major Red Sea macrophytes Weinzierl, Michael 2017 https://dx.doi.org/10.25781/kaust-97ary https://repository.kaust.edu.sa/handle/10754/626310 unknown KAUST Research Repository Text MS Thesis article-journal ScholarlyArticle 2017 ftdatacite https://doi.org/10.25781/kaust-97ary 2021-11-05T12:55:41Z As anthropogenically-forced ocean temperatures continue to rise, the physiological response of marine macrophytes becomes exceedingly relevant. The Red Sea is a semi-isolated sea- the warmest in the world (SST up to 34°C) - already exhibiting signs of rapid warming rates exceeding those of other tropical oceans. This will have profound effects on the physiology of marine organisms, specifically marine macrophytes, which have direct influence on the dynamic carbonate system of the Red Sea. The aim of this paper is to define the physiological capability and thermal optima and limits of six ecologically important Red Sea macrophytes- ranging from seagrasses to calcifying and non-calcifying algae- and to describe the effects of increasing thermal stress on the performance and limits of each macrophyte in terms of activation energy. Of the species considered, Halophila stipulacae, Halimeda optunia, Halimeda monile and Padina pavonica thrive in thermal extremes and may be more successful in future Red Sea warming scenarios. Specifically, Halimeda opuntia increased productivity and calcification rates up to 38°C, making it the most thermally resilient macrophyte. Halophila stipulacae is the most productive seagrass, and hence has the greatest positive effect on Omega saturation state and offers chemical buffer capacity to future ocean acidification. Text Ocean acidification DataCite Metadata Store (German National Library of Science and Technology) |
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As anthropogenically-forced ocean temperatures continue to rise, the physiological response of marine macrophytes becomes exceedingly relevant. The Red Sea is a semi-isolated sea- the warmest in the world (SST up to 34°C) - already exhibiting signs of rapid warming rates exceeding those of other tropical oceans. This will have profound effects on the physiology of marine organisms, specifically marine macrophytes, which have direct influence on the dynamic carbonate system of the Red Sea. The aim of this paper is to define the physiological capability and thermal optima and limits of six ecologically important Red Sea macrophytes- ranging from seagrasses to calcifying and non-calcifying algae- and to describe the effects of increasing thermal stress on the performance and limits of each macrophyte in terms of activation energy. Of the species considered, Halophila stipulacae, Halimeda optunia, Halimeda monile and Padina pavonica thrive in thermal extremes and may be more successful in future Red Sea warming scenarios. Specifically, Halimeda opuntia increased productivity and calcification rates up to 38°C, making it the most thermally resilient macrophyte. Halophila stipulacae is the most productive seagrass, and hence has the greatest positive effect on Omega saturation state and offers chemical buffer capacity to future ocean acidification. |
format |
Text |
author |
Weinzierl, Michael |
spellingShingle |
Weinzierl, Michael Physiological performance and thermal tolerance of major Red Sea macrophytes |
author_facet |
Weinzierl, Michael |
author_sort |
Weinzierl, Michael |
title |
Physiological performance and thermal tolerance of major Red Sea macrophytes |
title_short |
Physiological performance and thermal tolerance of major Red Sea macrophytes |
title_full |
Physiological performance and thermal tolerance of major Red Sea macrophytes |
title_fullStr |
Physiological performance and thermal tolerance of major Red Sea macrophytes |
title_full_unstemmed |
Physiological performance and thermal tolerance of major Red Sea macrophytes |
title_sort |
physiological performance and thermal tolerance of major red sea macrophytes |
publisher |
KAUST Research Repository |
publishDate |
2017 |
url |
https://dx.doi.org/10.25781/kaust-97ary https://repository.kaust.edu.sa/handle/10754/626310 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_doi |
https://doi.org/10.25781/kaust-97ary |
_version_ |
1766158441061023744 |