in addition to biochemical, physiological and morphological analysis, molecular studies provide additional information for establishing phylogenetic relationships among different species and strains of the genus dunaliella. in the present study, based on neighbor- joining analysis of the nuclear rdna its sequence, a novel strain of the green algae dunaliella viridis was identified from maharlu ...

dunaliella salina was isolated from maharlu salt lake in shiraz, iran, and was analyzed forthe effects of salinity stress on its growth, pigment content and ascorbate peroxidase activity. growth,expressed as number of cells ml-1, which was most rapid at 2 m nacl, was reduced at salinity extremes.during the exponential phase of growth, increasing salinity from 0.5 to 4 m nacl increased chl a fro...

kashan aquifer is adjacent to salt lake. because of this adjacency, the saline water of the lake has moved to the aquifer. in this study groundwater quality of the aquifer was simulated using artificial neural network (ann) model. for this purpose, the dominant ion of water was first determined by piper diagram. results showed that the sodium chloride is the dominant ion of water and so it was ...

there is a little room for doubt that lake urmia, which is the second largest permanent hyper saline lake in the world,is currently suffering from a lack of appropriate management strategy. accordingly, this study was done using the swotmatrix to analyze the key factors affecting declining water levels and increasing salinity. results of group decisionmakingby brainstorming among a group of exp...

It is widely accepted that biodiversity is lower in more extreme environments. In this study, we sought to determine whether this trend, well documented for macroorganisms, also holds at the microbial level for bacteria. We used denaturing gradient gel electrophoresis (DGGE) with phylum-specific primers to quantify the taxon richness (i.e., the DGGE band numbers) of the bacterioplankton communi...

(1) Background: Recently, secondary soil salinization has frequently occurred in ecological water conveyance and irrigation areas. Therefore, monitoring the information on area analyzing change process of are great significance to both environmental improvement management. (2) Methods: This study takes Shiyang River’s terminal lake—Qingtu Lake—and its surroundings as research area. The index wa...

Changes in sedimentary profiles and stratigraphic architecture over time lake basins are shown to be relevant markers of climate changes terrestrial palaeoenvironments. The the Priabonian (late Eocene)–early Rupelian (early Oligocene) Alès–Saint-Chaptes–Issirac saline system has been reconstructed from sedimentological, biostratigraphic magnetostratigraphic analysis outcrops well cores. As a fu...

Current earth observation models do not take into account the influence of water salinity on the evaporation rate, even though the salinity influences the evaporation rate by affecting the density and latent heat of vaporization. In this paper, we adapt the SEBS (Surface Energy Balance System) model for large water bodies and add the effect of water salinity to the evaporation rate. Firstly, SE...

Sambhar Lake (Salt of Earth), the largest inland saline and alkaline lake of India is situated in the state of Rajasthan, and is referred in the epic Mahabharata. When full, it covers an area of 230 sq km. It lays some 60 km west of Jaipur, adjacent to the Salt Lake City. Flocks of flamingoes are attracted by the delicious spirulina algae that flourish when the water reaches a medium degree of ...

Meromictic lakes located in landlocked steppes of central Asia (~2500 km inland) have unique geophysiochemical characteristics compared to other meromictic lakes. To characterize their bacteria and elucidate relationships between those bacteria and surrounding environments, water samples were collected from three saline meromictic lakes (Lakes Shira, Shunet and Oigon) in the border between Sibe...