Buscar
Mostrando ítems 41-50 de 492
Quality of UVR exposure for different biological systems along a latitudinal gradient
(2009)
The exposure of organisms to ultraviolet radiation (UVR) is characterized by the climatology (annual cycle) and the variance (anomalies) of biologically-weighted irradiances at eight geographical locations in austral South ...
Sex-dependent effects of ultraviolet radiation on the marine amphipod Ampithoe valida (Ampithoidae)
(Elsevier Science, 2015-03-09)
The combined effects of solar radiation and diet on the marine amphipod Amphitoe valida were investigated exposing individuals to two solar radiation treatments: PAB (>280 nm, PAR+UV-A+UV-B) and P (>400 nm, only PAR), and ...
Multiple interacting environmental drivers reduce the impact of solar UVR on primary productivity in Mediterranean lakes
(Nature Research, 2020-12)
Increases in rainfall, continental runoff, and atmospheric dust deposition are reducing water transparency in lakes worldwide (i.e. higher attenuation Kd). Also, ongoing alterations in multiple environmental drivers due ...
Effect of ultraviolet radiation on clearance rate of planktonic copepods with different photoprotective strategies
(Wiley VCH Verlag, 2019-03-03)
We studied two populations of Boeckella gracilipes and two populations of Boeckella gibbosa that inhabit mountain lakes from North-Patagonian Andes with different optical properties. We combined field and laboratory ...
Influence of light history on the photosynthetic and motility responses of Gymnodinium chlorophorum exposed to UVR and different temperatures
(Elsevier, 2014-06-17)
In the wake of global climate change, phytoplankton productivity and species composition is expected to change due to altered external conditions such as temperature, nutrient accessibility, pH and exposure to solar visible ...
Direct and indirect acquisition of photoprotective compounds in crab larvae of coastal Patagonia (Argentina)
(Oxford University Press, 2014-02-13)
First larval stage (Zoea I) of the crab Cyrtograpsus altimanus can obtain photoprotective compounds (PPCs) from their mother (indirect acquisition) and also via feeding on PPC-producers such as phytoplankton (direct ...
Solar UV Radiation Drives CO 2 Fixation in Marine Phytoplankton: A Double-Edged Sword
(American Society of Plant Biologist, 2007-05)
Photosynthesis by phytoplankton cells in aquatic environmentscontributes to more than 40% of the globalprimary production (Behrenfeld et al., 2006). Withinthe euphotic zone (down to 1% of surface photosyntheticallyactive ...