hydrographically bolivian poopó lake is located in the basin of desaguadero river and it has over a dozen main tributary rivers and other smaller rivers with lower flow. the mine water discharge from the abandoned and current mining activities polluted these rivers by carrying heavy metals, dissolved and suspended solids which in turn polluted the poopó lake which is considered as an important ...

Genetic structure of an endemic tooth-carp fish, Aphanius farsicus from four different water bodies in the Maharlu Lake basin was investigated by applying five microsatellite markers. All of the five examined microsatellite loci showed polymor-phism pattern. A total of four alleles were detected at five microsatellite loci, with an average of 2.8 to 3.5 alleles per locus. Average values of obse...

.............................................................................................................................. i ACKNOWLEDGEMENTS ..................................................................................................... iii DEDICATION ......................................................................................................................... ix LIST OF T...

Hydrographically Bolivian Poopó Lake is located in the basin of Desaguadero River and it has over a dozen main tributary rivers and other smaller rivers with lower flow. The mine water discharge from the abandoned and current mining activities polluted these rivers by carrying heavy metals, dissolved and suspended solids which in turn polluted the Poopó Lake which is considered as an important ...

-Walker Lake, a terminal saline lake in western Nevada, has experienced major fluctuations in its water level due to changes in the regional climate during Quaternary times. As part of a paleoclimatological study of western Nevada, we have investigated organic matter 6 ~3C and C/N values and lipid biomarker contents of sediments deposited at various periods over the past 150 thousand years of l...

Background: Urmia Lake, the second largest hyper-saline lake of the world, has experienced lack of water and other environmental issues in recent years. Now, there is a danger of the lake drying out, which will affect the region and its inhabitants. This study aimed to present a model which can relate the water level of the lake to effective factors. Methods: Parameters that influence water le...

We examined polycyclic aromatic compounds (PACs) and petroleum biomarkers (steranes, hopanes, terpanes) in radiometrically-dated lake sediment cores from the Athabasca oil sands region (AOSR) Peace-Athabasca Delta (PAD) Alberta (Canada) to determine whether contributions hydrocarbons have changed over time. Two floodplain lakes PAD (PAD 30, 31) recorded increased flux of alkylated PACs petrogen...

In many arid and semiarid regions, saline playas represent a significant source of unconsolidated sediments available for aeolian transport, and severe saline dust storms occur frequently due to human disturbance. In this study, saline dust storms are reviewed systematically from the aspects of concept, general characteristics, conditions of occurrence, distribution and ecological impact. Our r...