Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change
Understanding the effects of global climate change on the algae that form the basis of most aquatic food chains is of paramount importance in our ability to make informed decisions about the future of production systems, marine ecosystems, and the global carbon cycle. Despite the Montreal Protocol t...
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ftdoajarticles:oai:doaj.org/article:21d589fb0b734ff582571690d05bc2ce 2023-05-15T17:50:43+02:00 Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change J Beardall S Stojkovic K Gao 2014-11-01T00:00:00Z https://doi.org/10.3354/ab00582 https://doaj.org/article/21d589fb0b734ff582571690d05bc2ce EN eng Inter-Research https://www.int-res.com/abstracts/ab/v22/p5-23/ https://doaj.org/toc/1864-7782 https://doaj.org/toc/1864-7790 1864-7782 1864-7790 doi:10.3354/ab00582 https://doaj.org/article/21d589fb0b734ff582571690d05bc2ce Aquatic Biology, Vol 22, Pp 5-23 (2014) Biology (General) QH301-705.5 Microbiology QR1-502 article 2014 ftdoajarticles https://doi.org/10.3354/ab00582 2022-12-31T08:00:23Z Understanding the effects of global climate change on the algae that form the basis of most aquatic food chains is of paramount importance in our ability to make informed decisions about the future of production systems, marine ecosystems, and the global carbon cycle. Despite the Montreal Protocol to restrict the release of harmful chlorofluorocarbons into the atmosphere, ozone levels have not recovered at all latitudes, and in some regions levels of UVB are still rising due to interactions with phenomena related to climate change. However, the effects of UV radiation may be modulated by other environmental changes. In this review, we discuss how factors such as elevated CO2 and ocean acidification, increasing temperature, and reduced nutrient supply associated with enhanced stratification can interact with UV radiation to affect algal physiological performance and growth. For instance, nutrient limitation enhances UV-induced inhibition due to the reduced capacity of algae to screen out UVB and/or impairment of their capacity to repair damage. Higher temperatures tend to promote repair more than photochemical damage so result in a net reduction of UV inhibition. Elevated CO2 and ocean acidification has complex interactions with UV radiation, with mixed net outcomes for algal productivity. Differential effects of UVA and UVB have been shown to depend on their irradiance levels; while moderate levels of UVA stimulate growth and photosynthesis of some algae, UVB almost always results in harm to marine primary producers. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Aquatic Biology 22 5 23 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Biology (General) QH301-705.5 Microbiology QR1-502 |
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Biology (General) QH301-705.5 Microbiology QR1-502 J Beardall S Stojkovic K Gao Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
topic_facet |
Biology (General) QH301-705.5 Microbiology QR1-502 |
description |
Understanding the effects of global climate change on the algae that form the basis of most aquatic food chains is of paramount importance in our ability to make informed decisions about the future of production systems, marine ecosystems, and the global carbon cycle. Despite the Montreal Protocol to restrict the release of harmful chlorofluorocarbons into the atmosphere, ozone levels have not recovered at all latitudes, and in some regions levels of UVB are still rising due to interactions with phenomena related to climate change. However, the effects of UV radiation may be modulated by other environmental changes. In this review, we discuss how factors such as elevated CO2 and ocean acidification, increasing temperature, and reduced nutrient supply associated with enhanced stratification can interact with UV radiation to affect algal physiological performance and growth. For instance, nutrient limitation enhances UV-induced inhibition due to the reduced capacity of algae to screen out UVB and/or impairment of their capacity to repair damage. Higher temperatures tend to promote repair more than photochemical damage so result in a net reduction of UV inhibition. Elevated CO2 and ocean acidification has complex interactions with UV radiation, with mixed net outcomes for algal productivity. Differential effects of UVA and UVB have been shown to depend on their irradiance levels; while moderate levels of UVA stimulate growth and photosynthesis of some algae, UVB almost always results in harm to marine primary producers. |
format |
Article in Journal/Newspaper |
author |
J Beardall S Stojkovic K Gao |
author_facet |
J Beardall S Stojkovic K Gao |
author_sort |
J Beardall |
title |
Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
title_short |
Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
title_full |
Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
title_fullStr |
Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
title_full_unstemmed |
Interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
title_sort |
interactive effects of nutrient supply and other environmental factors on the sensitivity of marine primary producers to ultraviolet radiation: implications for the impacts of global change |
publisher |
Inter-Research |
publishDate |
2014 |
url |
https://doi.org/10.3354/ab00582 https://doaj.org/article/21d589fb0b734ff582571690d05bc2ce |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Aquatic Biology, Vol 22, Pp 5-23 (2014) |
op_relation |
https://www.int-res.com/abstracts/ab/v22/p5-23/ https://doaj.org/toc/1864-7782 https://doaj.org/toc/1864-7790 1864-7782 1864-7790 doi:10.3354/ab00582 https://doaj.org/article/21d589fb0b734ff582571690d05bc2ce |
op_doi |
https://doi.org/10.3354/ab00582 |
container_title |
Aquatic Biology |
container_volume |
22 |
container_start_page |
5 |
op_container_end_page |
23 |
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1766157599178227712 |