Yehuda Cohen

TL;DR: In this article, the authors showed that coral respiration in light was calculated as the difference between the measured gross and net photosynthesis, and was found to be >6 times higher at a saturating irradiance of 350 pEm m 2 s 1 than the dark respiration measured under identical hydrodynamic conditions (flow rate of 5 to 6 cm ssl).

TL;DR: The profiles of O, H,S, and pH within a microbial mat of the hypcrsaline pond Solar Lake, Sinai, were measured by 2-208pm-thick microelectrodes during diurnal and artificial light cycles as mentioned in this paper.

TL;DR: Microelectrode studies demonstrate the existence of persistent oxygen and pH gradients around flocculent, macroscopic marine particles known as marine snow, which may significantly influence the distribution and activity of marine microorganisms and permit processes requiring low oxygen, including denitrification.

TL;DR: In this article, the microzonation of photosynthetic organisms in four cyanobacterial mats of Solar Lake, Sinai, was studied by light and scanning electron microscopy, which allowed a spatial resolution of 100 µm.

TL;DR: In this article, the authors studied the chemical aspects of the sulfur cycle in the chemocline of a tropical salt lake and found that sulfide was rapidly oxidized by oxygen, with a half-life of 5-10 min to produce mainly sulfate and thiosulfate.