Interactive effects of temperature, ultraviolet radiation and food quality on zooplankton alkaline phosphatase activity

Wolinski, Laura; Modenutti, Beatriz; Souza, María Sol; Balseiro, Esteban

doi:10.1016/j.envpol.2016.02.016

Cited by 18 publications

(8 citation statements)

References 48 publications

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“…Considering time of response, GSTs are known to react on a short-time scale (within an hour) to both temperature and salinity in copepods [ 27 ]. The antioxidant defenses (i.e., GST, CAT, SOD) are known to activate due to warming, both in cladocerans [ 43 , 44 ], mussels [ 45 ] and crabs [ 46 ]. Moreover, Vehmaa et al [ 21 ] showed that a rise by 3°C was affecting copepods’ oxidative balance by increasing ORAC and TBARS levels, whereas toxic cyanobacteria promoted antioxidative defenses (ORAC) and decreased oxidative damage (TBARS).…”

Section: Discussionmentioning

confidence: 99%

Oxidative stress and antioxidant defense responses in Acartia copepods in relation to environmental factors

et al. 2018

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On a daily basis, planktonic organisms migrate vertically and thus experience widely varying conditions in their physico-chemical environment. In the Gulf of Finland, these changes are larger than values predicted by climate change scenarios predicted for the next century (up to 0.5 units in pH and 5°C in temperature). In this work, we are interested in how temporal variations in physico-chemical characteristics of the water column on a daily and weekly scale influence oxidative stress level and antioxidant responses in the planktonic copepod of the genus Acartia. Responses were determined from samples collected during a two-week field survey in the western Gulf of Finland, Baltic Sea. Our results showed that GST (Glutathione-S-transferase) enzyme activity increased in the surface waters between Weeks I and II, indicating antioxidant defense mechanism activation. This is most likely due to elevating temperature, pH, and dissolved oxygen observed between these two weeks. During Week II also GSSG (oxidized glutathione) was detected, indicating that copepods responded to stressor(s) in the environment. Our results suggest that Acartia copepods seem fairly tolerant to weekly fluctuations in environmental conditions in coastal and estuarine areas, in terms of antioxidant defense and oxidative stress. This could be directly connected to a very efficient glutathione cycling system acting as antioxidant defense system for neutralizing ROS and avoiding elevated levels of LPX.

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Section: Discussionmentioning

confidence: 99%

Oxidative stress and antioxidant defense responses in Acartia copepods in relation to environmental factors

et al. 2018

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“…This has been demonstrated in recent laboratory studies on the effects of increased concentrations of CDOM where UV-induced production of ROS led to DNA damage (strand breaks), partially offsetting the benefit of UV-absorption provided to zooplankton. 332,340 In contrast, field observations show that levels of DNA damage (strand breaks) in the larvae of an aquatic insect were 50 times lower in aquatic ecosystems with higher CDOM concentrations. 341 This suggests that overall, CDOM absorption of UV radiation reduces DNA damage more than indirect chemical reactions increase the damage.…”

Section: Increased Input Of Coloured Dissolved Organic Matter Into Aquatic Systems Reduces Exposure To Uv Radiation and Thus Dna-damagementioning

confidence: 97%

“…331 Laboratory experiments using artificial UV radiation and 400 nm cutoff filters and a freshwater zooplankton found that, at warmer temperatures, exposure to UV radiation lowered levels of a critical enzyme that takes up phosphorus into the body, thus limiting a nutrient necessary for zooplankton growth and reproduction. 332 As a result of these effects on the lower levels of aquatic food webs, UV radiation and climate warming might interact to limit availability of food and reduce the abundance of recreationally and commercially important fish species.…”

Section: 328mentioning

confidence: 99%

Environmental effects of ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2017

Bernhard

Neale

Barnes

et al. 2018

Photochem Photobiol Sci

202

107

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The Environmental Effects Assessment Panel (EEAP) is one of three Panels of experts that inform the Parties to the Montreal Protocol. The EEAP focuses on the effects of UV radiation on human health, terrestrial and aquatic ecosystems, air quality, and materials, as well as on the interactive effects of UV radiation and global climate change. When considering the effects of climate change, it has become clear that processes resulting in changes in stratospheric ozone are more complex than previously held. Because of the Montreal Protocol, there are now indications of the beginnings of a recovery of stratospheric ozone, although the time required to reach levels like those before the 1960s is still uncertain, particularly as the effects of stratospheric ozone on climate change and vice versa, are not yet fully understood. Some regions will likely receive enhanced levels of UV radiation, while other areas will likely experience a reduction in UV radiation as ozone- and climate-driven changes affect the amounts of UV radiation reaching the Earth's surface. Like the other Panels, the EEAP produces detailed Quadrennial Reports every four years; the most recent was published as a series of seven papers in 2015 (Photochem. Photobiol. Sci., 2015, 14, 1-184). In the years in between, the EEAP produces less detailed and shorter Update Reports of recent and relevant scientific findings. The most recent of these was for 2016 (Photochem. Photobiol. Sci., 2017, 16, 107-145). The present 2017 Update Report assesses some of the highlights and new insights about the interactive nature of the direct and indirect effects of UV radiation, atmospheric processes, and climate change. A full 2018 Quadrennial Assessment, will be made available in 2018/2019.

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“…12,125,234 Laboratory studies with 340 nm UV-A lamps have implicated ROS in the possible inhibition of uptake of dietary nutrients in Daphnia. 237 However, recent models suggest that damaging concentrations of photoproduced ROS, in the form of hydrogen peroxide, likely occur only in the top few centimeters of most lakes. 236 Additionally, ROS break down very rapidly.…”

Section: Reactive Oxygen Species Produced By Uv-dom Interactions Havementioning

confidence: 99%

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

Williamson

Neale

Hylander

et al. 2019

Photochem Photobiol Sci

121

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Interactive effects of temperature, ultraviolet radiation and food quality on zooplankton alkaline phosphatase activity

Cited by 18 publications

References 48 publications

Oxidative stress and antioxidant defense responses in Acartia copepods in relation to environmental factors

Oxidative stress and antioxidant defense responses in Acartia copepods in relation to environmental factors

Environmental effects of ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2017

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

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