Ultraviolet B radiation alters movement and thermal selection of zebrafish (
            <i>Danio rerio</i>
            )

Seebacher, Frank; Kazerouni, Ensiyeh Ghanizadeh; Franklin, Craig E.

doi:10.1098/rsbl.2016.0258

Cited by 16 publications

(11 citation statements)

References 13 publications

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“…Nevertheless, zebrafish showed reduced swimming performance when exposed to UVB for two weeks (3.3 W m -2 , 1.19 kJ m -2 d -1 ). This reduction in muscular activity can be part of a mechanism to minimize intrinsic reactive oxygen species (ROS) production after exposure to UVB (Seebacher et al 2016). The predatory performance of the reef fish Patagonothen cornucla, a species inhabiting the intertidal areas of the Patagonian coast, was affected after UVB exposure (Valinas and Helbling 2016).…”

Section: Juveniles and Adultsmentioning

confidence: 99%

Effect of ultraviolet radiation (UVR) on the life stages of fish

Alves

Agustı́

2020

Rev Fish Biol Fisheries

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Current levels of Ultraviolet Radiation (UVR) represent a significant threat to many fish species. The first studies on the effects of UVR on organisms were performed on fish at the beginning of the twentieth century, and the topic has been progressing continuously until the present. Here, we review the reported harmful effects of ultraviolet B (UVB) and A (UVA) radiations in fish at different lifecycle stages, including embryo, larvae, juveniles and adults. The most evident negative effects during the early development stages are an increase in mortality and incidence in developmental malformations, with the skin and gills the most affected tissues in larvae. Growth reduction, a loss in body condition, and behavioral, physiological and metabolic changes in juveniles/adults occur under short- or long-term UVB exposure. The skin in juveniles/adults undergoes profound morphological and functional changes, even after acute exposure to UVR. Impairment of molecular and cellular processes was evidenced in all development stages by increasing the levels of DNA damage, apoptosis and changing tissues’ antioxidant status. The different photo-protective mechanisms to cope with excessive UVR exposure are also revised. Currently, stratospheric ozone dynamics and climate change interact strongly, enhancing the potential exposure of fish to UVR under water. Due to these environmental changes, fish are exposed to new and complex interactions between UVR and environmental stressors, which potentially affects fish growth and survival. Understanding the ability of fish to cope and adapt to these environmental changes will be essential to evaluate the potential impact in fisheries and mitigate ecological problems.

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Section: Juveniles and Adultsmentioning

confidence: 99%

Effect of ultraviolet radiation (UVR) on the life stages of fish

Alves

Agustı́

2020

Rev Fish Biol Fisheries

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“…Even though studies demonstrating an interaction of ROS production and behaviour in zebrafish larvae are lacking in the literature, at later developmental stages in zebrafish, an interaction of ROS production and movement was observed after chronic 3-hour daily exposure to UVB radiation (Seebacher et al, 2016). In this study, the ROS formation was significantly decreased in the 37.4 J/cm 2 UVA dose at 72 hpf.…”

Section: Behaviourmentioning

confidence: 43%

Sub-lethal UV radiation during early life stages alters the behaviour, heart rate and oxidative stress parameters in zebrafish (Danio rerio)

Hurem

Fraser

Gomes

et al. 2018

Ecotoxicology and Environmental Safety

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Environmental UV radiation in sufficient doses, as a possible consequence of climate change, is potent enough to affect living organisms with different outcomes, depending on the exposure life stage. The aim of this project was to evaluate the potentially toxic effects of exposure to sub-lethal and environmentally relevant doses of UVA (9.4, 18. 7, 37.7 J/cm 2) and UVB radiation (0.013, 0.025, 0.076 J/cm 2) on the development and behaviour in early life stages (4.5-5.5 hours post fertilization, hpf) of the zebrafish (Danio rerio). The used doses were all below the median lethal dose (LD50) and caused no significant difference in survival, deformities, or hatching between exposed and control groups. Compared to controls, there were transient UVA and UVB exposure effects on heart rate, with dose dependent reductions at 50 hpf, and at 60 hpf for UVA only. The UVB exposure caused an increasing trend in reactive oxygen species (ROS) formation at the two highest doses, even though only significant at 120 hpf for the second highest dose. Both UVA and UVB caused an increasing trend in lipid peroxidation (LPO) at the highest doses tested at 72 hpf. Furthermore, UVA exposure led to significant reductions in larval movement following exposure to the two highest doses of UVA, i.e., reduction in the time spent active and the total distance moved compared to control at 100 hpf, while no effect on the swimming speed was observed. The lowest dose of UVA had no effect on behaviour. In contrast, the highest dose of UVB led to a possible increase in the time spent active and a slower average swimming speed although these effects were not significant (p = 0.07). The obtained results show that UV doses below LD50 levels are able to cause changes in the behaviour and physiological parameters of zebrafish larvae, as well as oxidative stress in the form of ROS formation and LPO. Further testing is necessary to assess how this type of radiation and the effects observed could affect fish population dynamics.

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“…Independent of the aforementioned effects of UVB exposition on body size and possibly related behavioural responses, an enhanced formation of ROS may be responsible for the behavioural changes in UVB enhanced -fish. Seebacher et al [7] found an increase in ROS-induced damage in UVB-exposed zebrafish (Danio rerio) together with a reduced swimming performance at high temperatures compared with fish from a control group. By contrast, activity levels were not different between treatment groups in the present study so that comparable ROS-mediated effects on swimming performance can largely be ruled out.…”

Section: Discussionmentioning

confidence: 99%

Long-term UVB exposure promotes predator-inspection behaviour in a fish

et al. 2017

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Ultraviolet-B radiation (UVB) reaching the earth's surface has increased due to human-caused stratospheric ozone depletion. Whereas the harmful effects of UVB on aquatic organisms are well studied at the molecular and cellular level, recent studies have also begun to address behavioural changes caused by sublethal amounts of UVB. However, the behavioural consequences of long-term exposure to ecologically relevant UVB levels over several life stages are virtually unknown, particularly with regard to predator-prey behaviour. We found increased predator-inspection behaviour together with a smaller body length in three-spined sticklebacks () after fish were exposed for about seven months to natural sunlight conditions with enhanced UVB, compared with full siblings exposed to natural sunlight only. The observed change in antipredator behaviour may reflect a direct behavioural response mediated through UVB-induced oxidative stress during development. Alternatively, the smaller body size in UVB-exposed fish may result in an increased inspection effort allowing them to spend more time foraging. Our findings suggest that, within the scope of environmental change, UVB radiation constitutes an important stress factor by eliciting behavioural responses that influence crucial ecological processes, such as predator-prey interactions.

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Ultraviolet B radiation alters movement and thermal selection of zebrafish ( Danio rerio )

Cited by 16 publications

References 13 publications

Effect of ultraviolet radiation (UVR) on the life stages of fish

Effect of ultraviolet radiation (UVR) on the life stages of fish

Sub-lethal UV radiation during early life stages alters the behaviour, heart rate and oxidative stress parameters in zebrafish (Danio rerio)

Long-term UVB exposure promotes predator-inspection behaviour in a fish

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