Impacts of ocean acidification under multiple stressors on typical organisms and ecological processes

The oceans are taking up over one million tons of fossil CO2 per hour, resulting in increased pCO(2) and declining pH, leading to ocean acidification (OA). At the same time, accumulation of CO2 and other greenhouse gases is causing ocean warming, which enhances stratification with thinned upper mixed layers, exposing planktonic organisms to increasing levels of daytime integrated UV radiation. Ocean warming also reduces dissolved oxygen in seawater, resulting in ocean deoxygenation. All these ocean global changes are impacting marine ecosystems and effects are well documented for each individual driver (pH, oxygen, temperature, UV). However, combined effects are still poorly understood, strongly limiting our ability to project impacts at regional or local levels. Different regions are often exposed (and often adapted) to contrastingly different physical and chemical environmental conditions and organisms, and ecosystems from different parts of the world will be exposed to unique combinations of stressors in the future. Understanding the modulating role of adaptation, species niche and stressors' interaction is key. This review, being a non-exhaustively explored one, aims to provide an overview on understandings of ecophysiological effects of OA and its combination with covarying drivers, mainly warming, deoxygenation and solar UV radiation. We propose a testable hypothetical model as well as future research perspectives.

NATURVETENSKAP Geovetenskap och miljövetenskap Oceanografi, hydrologi och vattenresurser hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Oceanography, Hydrology and Water Resources hsv//eng
Algae
Deoxygenation
Ocean acidification
Ocean warming
Plankton
UV
radiation
solar uv-radiation
photosynthetic carbon fixation
elevated co2
climate-change
ultraviolet-radiation
larval development
ulva-rigida
marine-phytoplankton
declining oxygen
elemental ratios

Gao, G. (författare)
Wang, Y. J. (författare)
Dupont, Samuel,1971Gothenburg University,Göteborgs universitet,Sven Lovén centrum för marina vetenskaper,The Sven Lovén Centre for Marine Sciences(Swepub:gu)xdupsa (författare)
Göteborgs universitetSven Lovén centrum för marina vetenskaper (creator_code:org_t)

Ingår i:Marine Life Science & Technology: Springer Science and Business Media LLC2:3, s. 279-2912096-64902662-1746

Av författaren/redakt...: Gao, K. S.; Gao, G.; Wang, Y. J.; Dupont, Samuel, ...

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