Effects of ultraviolet light on immune parameters of the roach

Jokinen, Eeva; Salo, Harri M.; Markkula, S. Eveliina; Aaltonen, Tuula M.; Immonen, Anu K.

doi:10.1016/s0378-4274(99)00240-4

Cited by 19 publications

(23 citation statements)

References 26 publications

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“…In another study by Almasiova et al (2012), deterioration in renal interstitial tissue and hematopoietic tissue, which plays an important role in the formation of erythrocytes and leukocytes and the number of blood vessels, was observed in guppy fish exposed to 20 Gy gamma radiation. Exposure to UVB induced a strong stress response, which was manifested in the roach (Jokinen et al, 2000) and fish (Salo et al, 2000b) blood as an increase in granulocytes and a decrease in lymphocytes, which is in contrast with our results.…”

Section: Discussioncontrasting

confidence: 99%

Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae

et al. 2015

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Section: Discussioncontrasting

confidence: 99%

Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae

et al. 2015

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“…On the other hand, dab eggs and embryos are pelagic and, in the less saline Baltic Sea, due to their specific weight, they drift in deeper water layers than in the more saline North Sea where they are located closer to the water surface (Nissling et al 2002). Therefore, the early life stages of North Sea dab may be less protected from an increasing impact of UV-B radiation (due to increasing global ozone depletion), which is known to affect pigmentation in various taxonomic groups, including fish (Blazer et al 1997, Jokinen et al 2000, Alemanni et al 2003. It can therefore not be excluded that increased UV-B radia-tion is responsible for the increase in prevalence of hyperpigmentation (Noguera et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Hyperpigmentation in North Sea dab Limanda limanda. I. Spatial and temporal patterns and host effects

Grütjen¹,

Lang²,

Feist³

et al. 2013

Dis. Aquat. Org.

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Hyperpigmentation is a term describing a specific pigment anomaly affecting common dab Limanda limanda in the North Sea and, less frequently, in adjacent areas, e.g. the English Channel, Irish and Celtic Seas, western Baltic Sea and Icelandic waters. Other North Sea flatfish species are also affected, but at a markedly lower prevalence. The condition is characterised by the occurrence of varying degrees of green to black patchy pigment spots in the skin of the upper (ocular) body side and pearly-white pigment spots in the skin of the lower (abocular) body side. In the course of fish disease monitoring programmes carried out by Germany and the UK (England and Scotland), a pronounced spatial pattern of hyperpigmentation has been detected in the North Sea. An increase in prevalence has been recorded in almost all North Sea areas studied in the past 2 decades. The prevalence recorded in hot spot areas of the condition increased from 5 to > 40% between 1988 and 2009. Analysis of the German data indicates that the prevalence and intensity (degree of discolouration) of hyperpigmentation increase with size and age, indicating a temporal progression of the condition with size and age. Intense hyperpigmentation is associated with increased growth (length) and decreased condition factor. Potential causes of the condition (UV-B radiation nutrition, water temperature increase, demographic changes) and, in particular, of the spatial/temporal patterns recorded as well as the relationship to host-specific factors (sex, age, length, growth, condition factor) are discussed.

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“…UVR exposure can also induce the endocrine stress response by causing an increase in circulating glucocorticoids (e.g. cortisol) ( [41], but see [42]), which under chronic conditions can lead to reduced growth and immunosuppression [43]. Immunosuppression can also be triggered by UVR-induced DNA damage, which affects various cell-mediated immune responses including the function of antigen presenting cells and stimulating the production of soluble immunosuppressive mediators [44].…”

Section: Consequences Of Uvr Damagementioning

confidence: 99%

“…UVR-induced immunosuppression occurs via a number of different pathways that will not be discussed in detail here. Briefly, UVR exposure can cause immunosuppression by inhibiting antigen presentation, inducing the release of immunosuppressive cytokines, reducing phagocytosis by macrophages, suppressing natural cytotoxicity activity, and inducing the stress response [41,152,153]. The mechanisms of UVR-induced immunosuppression have been studied predominantly in mammals, but given that the innate and adaptive immune system of amphibians is similar to that of mammals [151], it is likely that these immunosuppressive mechanisms also occur in amphibians.…”

Section: Uvr and Biotic Factors Infectious Diseasementioning

confidence: 99%

Drivers of amphibian declines: effects of ultraviolet radiation and interactions with other environmental factors

Alton

Franklin

2017

Clim Chang Responses

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As a consequence of anthropogenic environmental change, the world is facing a possible sixth mass extinction event. The severity of this biodiversity crisis is exemplified by the rapid collapse of hundreds of amphibian populations around the world. Amphibian declines are associated with a range of factors including habitat loss/ modification, human utilisation, exotic/invasive species, environmental acidification and contamination, infectious disease, climate change, and increased ultraviolet-B radiation (UVBR) due to stratospheric ozone depletion. However, it is recognised that these factors rarely act in isolation and that amphibian declines are likely to be the result of complex interactions between multiple anthropogenic and natural factors. Here we present a synthesis of the effects of ultraviolet radiation (UVR) in isolation and in combination with a range of naturally occurring abiotic (temperature, aquatic pH, and aquatic hypoxia) and biotic (infectious disease, conspecific density, and predation) factors on amphibians. We highlight that examining the effects of UVR in the absence of other ecologically relevant environmental factors can greatly oversimplify and underestimate the effects of UVR on amphibians. We propose that the pathways that give rise to interactive effects between multiple environmental factors are likely to be mediated by the behavioural and physiological responses of amphibians to each of the factors in isolation. A sound understanding of these pathways can therefore be gained from the continued use of multi-factorial experimental studies in both the laboratory and the field. Such an understanding will provide the foundation for a strong theoretical framework that will allow researchers to predict the combinations of abiotic and biotic conditions that are likely to influence the persistence of amphibian populations under future environmental change.

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Effects of ultraviolet light on immune parameters of the roach

Cited by 19 publications

References 26 publications

Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae

Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae

Hyperpigmentation in North Sea dab Limanda limanda. I. Spatial and temporal patterns and host effects

Drivers of amphibian declines: effects of ultraviolet radiation and interactions with other environmental factors

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