Acclimation of Red Sea macroalgae to solar radiation: photosynthesis and thallus absorptance

Effects of solar radiation on growth, photosynthesis and respiration of marine macroalgae from the Arctic

The effect of artificial ultraviolet (UV) and natural solar radiation on photosynthesis, respiration and growth was investigated in 14 red, green and brown macroalgal species on Spitsbergen (Norway) during summer 1998. In June, maximum mean solar radiation at sea level was 120 W m-2 of visible (370 to 695 nm) and 15 W m-' of UV radiation (300 to 370 nm), and decreased gradually until the end of...

High Mortality of Red Sea Zooplankton under Ambient Solar Radiation

High solar radiation along with extreme transparency leads to high penetration of solar radiation in the Red Sea, potentially harmful to biota inhabiting the upper water column, including zooplankton. Here we show, based on experimental assessments of solar radiation dose-mortality curves on eight common taxa, the mortality of zooplankton in the oligotrophic waters of the Red Sea to increase st...

Photosynthetic activity and productivity of intertidal macroalgae: in situ measurements, from thallus to community scale

Artificial photosynthesis: Solar to fuel.

diff raction limit. However, the use of metamaterials in the design of hyperlenses meant losses through dissipation, and in some instances also a narrow operationfrequency range. In their study of acoustic lenses, Li and colleagues provide a slightly diff erent take on the original hyperlens idea by exploiting the diff erences between optical and acoustic waves. For acoustic waves, the wave equ...

Short-term effects of CO2, nutrients and temperature on three marine macroalgae under solar radiation

Three macroalgal species belonging to Chlorophyta (Ulva rigida), Rhodophyta (Ellisolandia elongata) and Phaeophyceae (Heterokontophyta; Cystoseira tamariscifolia), naturally growing at the same shore level and representing 3 morpho-functional groups, were exposed to short-term changes in temperature under different carbon and nitrogen regimes. Experiments were conducted in outdoor tanks at 4 co...