Ultraviolet Radiation and Its Effects on Organisms in Aquatic Environments

Holm‐Hansen, Osmund; Lubin, Dan; Helbling, E. Walter

doi:10.1007/978-1-4899-2406-3_13

Cited by 128 publications

(77 citation statements)

References 104 publications

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“…The effects of UVB on aquatic ecosystems are strongly dependent on the optical properties of the water body (Holm-Hansen et al 1993;Hanelt et al 2001). Therefore, it is necessary to estimate the penetration of UV radiation into the water column.…”

Section: Uvb In the Aquatic Environmentmentioning

confidence: 99%

Ultraviolet radiation shapes seaweed communities

Bischof

Gómez

Molis

et al. 2006

Rev Environ Sci Biotechnol

202

109

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Stratospheric ozone depletion and the concomitant increase in irradiance of ultraviolet-B radiation (UVB) at the earth's surface represent major threats to terrestrial and aquatic ecosystems. In costal rocky shore environments, seaweeds constitute a group of organisms of particular significance to ecosystem function. Thus, impairment of seaweed performance by UVB-exposure may result in severe changes in the functioning of coastal ecosystems. Here we present our view on how UVB radiation affects seaweed physiology and ecology and, thus, shapes the coastal environment by affecting the spatial, species and functional structure of seaweed communities.

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Section: Uvb In the Aquatic Environmentmentioning

confidence: 99%

Ultraviolet radiation shapes seaweed communities

Bischof

Gómez

Molis

et al. 2006

Rev Environ Sci Biotechnol

202

109

View full text Add to dashboard Cite

show abstract

“…They include, among others, the impact on growth, metabolism, motility, photo-orientation, pigmentation and photosynthetic capability of phytoplankton [3][4][5][6]. One of the processes that received particular attention is photosynthesis, as solar energy is directly used by autotrophic organisms, and thus any change on UVR might affect primary production [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of solar ultraviolet radiation on photosynthesis of the marine red tide alga Heterosigma akashiwo (Raphidophyceae)

Gao

Guan

Helbling

2007

Journal of Photochemistry and Photobiology B: Biology

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“…In recent years, many studies dealing with the ecological consequences of UV radiation on aquatic biota have been undertaken (Karentz et al 1994), although most have been performed in marine systems (Smith 1989;Karentz et al 1991;Holm-Hansen et al 1993), with emphasis on phytoplankton. Because microalgae are at the base of aquatic food webs, evidence that UV can alter phytoplankton biomass or growth strongly suggests that the entire ecosystem could be affected.…”

Section: Introductionmentioning

confidence: 99%

Differential tolerance to ultraviolet-B light and photoenzymatic repair in cladocerans from a Chilean lake

Ramos‐Jiliberto

Dauelsberg

Zúñiga

2004

Mar. Freshwater Res.

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Abstract. In the present study, the sensitivity of four coexisting cladoceran species to ultraviolet (UV)-B radiation was evaluated. First, the LD 50 under conditions inhibiting the action of photoenzymatic repair was calculated by exposing cladocerans to different doses of UV-B light only. Animals in another treatment group were exposed to both UV-B and visible light, which allows for photoenzymatic repair. Photoenzymatic repair contributed significantly towards the degree of total tolerance to UV-B light in all groups of cladocerans, although the magnitude of the contribution varied among species. When no photoenzymatic repair was allowed, the most tolerant species was Moina micrura, followed by Daphnia ambigua and Ceriodaphnia dubia, with Diaphanosoma chilense being the most sensitive species. Under conditions permitting the action of photorepair, M. micrura was again the most tolerant species to UV-B light. Ceriodaphnia dubia showed an intermediate tolerance value, whereas D. chilense and D. ambigua were the least tolerant species, with no significant differences between them. Adults and juveniles of C. dubia differed in their sensitivity to UV-B light under conditions with and without photorepair.

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Ultraviolet Radiation and Its Effects on Organisms in Aquatic Environments

Cited by 128 publications

References 104 publications

Ultraviolet radiation shapes seaweed communities

Ultraviolet radiation shapes seaweed communities

Effects of solar ultraviolet radiation on photosynthesis of the marine red tide alga Heterosigma akashiwo (Raphidophyceae)

Differential tolerance to ultraviolet-B light and photoenzymatic repair in cladocerans from a Chilean lake

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