The interactive effects of stratospheric ozone depletion, UV radiation, and climate change on aquatic ecosystems

Williamson, Craig E.; Neale, Patrick J.; Hylander, Samuel; Rose, Kevin C.; Figueroa, Félix L.; Robinson, Sharon A.; Häder, D.-P.; Wängberg, Sten-Åke; Worrest, Robert C.

doi:10.1039/c8pp90062k

Cited by 128 publications

(106 citation statements)

References 246 publications

(246 reference statements)

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“…However, the net effect of UVR can become non-negative as stimulation of heterotrophic bacterial production (HBP) and photosynthetic activity by UVR have been reported in several studies 29,30 . These contrasting results might be due to the UVR interaction with other environmental factors 28,31 . Thus, greater nutrient availability can either reduce photoinhibition on phyto-and bacterioplankton 32,33 or unmask UVR damage on phytoplankton or bacterioplankton 34 .…”

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confidence: 92%

“…This exposure is intensified in oligotrophic high-mountain lakes, due to their high-altitude location 27 (i.e. high UVR-fluxes) and usually having waters highly transparent to UVR due to lower concentrations of dissolved organic matter (DOM) 28 . However, the net effect of UVR can become non-negative as stimulation of heterotrophic bacterial production (HBP) and photosynthetic activity by UVR have been reported in several studies 29,30 .…”

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confidence: 99%

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Uncoupled phytoplankton-bacterioplankton relationship by multiple drivers interacting at different temporal scales in a high-mountain Mediterranean lake

Durán-Romero

Medina‐Sánchez

Carrillo

2020

Sci Rep

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Global-change stressors act under different timing, implying complexity and uncertainty in the study of interactive effects of multiple factors on planktonic communities. We manipulated three types of stressors acting in different time frames in an in situ experiment: ultraviolet radiation (UVR); phosphorus (P) concentration; temperature (T) in an oligotrophic Mediterranean high-mountain lake. The aim was to examine how the sensitivity of phytoplankton and bacterioplankton to UVR and their trophic relationship change under nutrient acclimation and abrupt temperature shifts. Phytoplankton and bacteria showed a common pattern of metabolic response to UVR × p addition interaction, with an increase in their production rates, although evidencing an inhibitory UVR effect on primary production (PP) but stimulatory on bacterial production (HBP). An abrupt T shift in plankton acclimated to UVR and P addition decreased the values of PP, evidencing an inhibitory UVR effect, whereas warming increased HBP and eliminated the UVR effect. The weakening of commensalistic and predatory relationship between phyto-and bacterioplankton under all experimental conditions denotes the negative effects of present and future global-change conditions on planktonic food webs towards impairing C flux within the microbial loop.

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confidence: 92%

mentioning

confidence: 99%

Uncoupled phytoplankton-bacterioplankton relationship by multiple drivers interacting at different temporal scales in a high-mountain Mediterranean lake

Durán-Romero

Medina‐Sánchez

Carrillo

2020

Sci Rep

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“…Despite the small amount of UV radiation that finally reaches the Earth's surface, its biological significance is exceptional [2]. UV radiation triggers and/or drives photochemical and photobiological processes, which are necessary for the proper functioning of ecosystems, and has strong direct or indirect effects on human health [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Living organisms have slowly adapted to the current levels of solar UV radiation through the evolution process and fast or abrupt changes impact the health and the diversity of flora and fauna [4].…”

Section: Introductionmentioning

confidence: 99%

Solar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italy

et al. 2019

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Review of the existing bibliography shows that the direction and magnitude of the long-term trends of UV irradiance, and their main drivers, vary significantly throughout Europe. Analysis of total ozone and spectral UV data recorded at four European stations during 1996–2017 reveals that long-term changes in UV are mainly driven by changes in aerosols, cloudiness, and surface albedo, while changes in total ozone play a less significant role. The variability of UV irradiance is large throughout Italy due to the complex topography and large latitudinal extension of the country. Analysis of the spectral UV records of the urban site of Rome, and the alpine site of Aosta reveals that differences between the two sites follow the annual cycle of the differences in cloudiness and surface albedo. Comparisons between the noon UV index measured at the ground at the same stations and the corresponding estimates from the Deutscher Wetterdienst (DWD) forecast model and the ozone monitoring instrument (OMI)/Aura observations reveal differences of up to 6 units between individual measurements, which are likely due to the different spatial resolution of the different datasets, and average differences of 0.5–1 unit, possibly related to the use of climatological surface albedo and aerosol optical properties in the retrieval algorithms.

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“…Alonso, Rocco, Barriga, Battini, and Zagarese (2004) and Overholt, Rose, Williamson, Fischer, and Cabrol (2016) demonstrate how copepods may exhibit UV radiation avoidance behavior, which may ultimately expose individuals to low-intensity, UV radiation. If possible, future studies may also benefit from using natural sunlight to determine the effects of UV radiation on reproductive performance and life history characteristics (Williamson et al, 2019). Therefore, further research is needed to determine the likelihood that cellular signaling or ROS plays any role in the responses observed herein.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, further research is needed to determine the likelihood that cellular signaling or ROS plays any role in the responses observed herein. If possible, future studies may also benefit from using natural sunlight to determine the effects of UV radiation on reproductive performance and life history characteristics (Williamson et al, 2019). Provided our aim was to demonstrate that UV irradiation can benefit organism performance, future work should aim to identify the proximate mechanisms that underly both the organismal benefit (increased fecundity) and detriment (decreased longevity) of UV irradiation.…”

Section: Discussionmentioning

confidence: 99%

Ultraviolet irradiation increases size of the first clutch but decreases longevity in a marine copepod

Heine

Powers

Kallenberg

et al. 2019

Ecology and Evolution

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An important component of life history theory is understanding how natural variation arises in populations. Both endogenous and exogenous factors contribute to organism survival and reproduction, and therefore, it is important to understand how such factors are both beneficial and detrimental to population dynamics. One ecologically relevant factor that influences the life history of aquatic organisms is ultraviolet (UV) radiation. While the majority of research has focused on the potentially detrimental effects that UV radiation has on aquatic organisms, few studies have evaluated hormetic responses stimulated by radiation under select conditions. The goal of this study was to evaluate the impact of UV‐A/B irradiation on life history characteristics in Tigriopus californicus copepods. After exposing copepods to UV‐A/B irradiation (control, 1‐, and 3‐hr UV treatments at 0.5 W/m2), we measured the impact of exposure on fecundity, reproductive effort, and longevity. We found that UV irradiation increased the size of the first clutch among all reproducing females in both the 1‐ and 3‐hr experimental groups and decreased longevity among all females that mated in the 1‐hr treatment. UV irradiation had no effect on the number of clutches females produced. These findings indicate a potential benefit of UV irradiation on reproductive performance early in life, although the same exposure came at a cost to longevity.

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The interactive effects of stratospheric ozone depletion, UV radiation, and climate change on aquatic ecosystems

Abstract: Summary of current knowledge about effects of UV radiation in inland and oceanic waters related to stratospheric ozone depletion and climate change.

Cited by 128 publications

References 246 publications

Uncoupled phytoplankton-bacterioplankton relationship by multiple drivers interacting at different temporal scales in a high-mountain Mediterranean lake

Uncoupled phytoplankton-bacterioplankton relationship by multiple drivers interacting at different temporal scales in a high-mountain Mediterranean lake

Solar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italy

Ultraviolet irradiation increases size of the first clutch but decreases longevity in a marine copepod

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