Present work was designed to study the physicochemical parameters of four lakes of Udaipur known as the “City of Lakes” of Tripura state. The studied lakes are Amar Sagar (AS), Dhani Sagar (DS), Jagannath Dighi (JD) and Mahadeb Dighi (MD). To evaluate the water quality of the lakes and to identify the pollution sources random sampling was done during the month of April, 2014. Collected samples ...

“Our analysis finds Earth’s lakes are power-law distributed for lakes ≥ 8.5 km2 (Fig. 2). Lakes < 8.5 km2 deviate from the power-law distribution such that there are fewer of these small lakes than expected if small lakes conformed to the same power-law distribution as large lakes. Across the range of lake sizes conforming to a power-law distribution, the tail exponent is τ = 1.97 (+ /− 0.01), ...

Using data from 1387 lakes collected over three decades, we found a wide range in the concentrations of total phosphorus (TP), total nitrogen (TN) and chlorophyll in Florida lakes, and that edaphic factors as outlined by the USEPA’s Florida Lake Regions were the dominant factor in determining the concentrations of plant nutrients in the state’s lakes. The hypothesis that all eutrophic lakes in ...

theoretical review of ‘mining pit lakes’ indicates that like natural lakes such lakes display a huge diversity. they are typically in a non-equilibrium state with respect to their surroundings. hence, at the decommissioning phase of mining operation a detailed technical study are required on different aspects of such created water bodies considering its morphometry, geology, hydrology, water qu...

Spatial and attribute database of the glaciers and glacial lakes of whole Nepal had developed by ICIMOD in collaboration with UNEP/RRC-AP in 2001 using remote sensing and geographic information systems techniques. There are altogether 3,252 glaciers covering an area of 5,322 square kilometer with approximately 481 km of ice reserves. The Mahakali River basin comprises 87 glaciers with an area o...

The stable-isotopic signature of dissolved inorganic carbon (DIC) has been routinely used in temperate lake systems to investigate the biogeochemical dynamics of carbon. We studied seven perennially ice-covered lakes in the McMurdo Dry Valleys, Antarctica, to ascertain how carbon cycling affects the dC of DIC in water columns of these systems. Unlike temperate lakes and, in fact, most polar lak...

Organic matter. Coarse woody debris (CWD) is thought to be important as cover for fish in the littoral zone of lakes. Development along the shoreline of lakes was negatively correlated with the density of CWD in lakes (Christensen et al. 1996). France et al. (1996) found that losses of leaf litter due to riparian clear cutting along lakes could result in substantial losses of dissolved organic ...

Alpine glaciers have receded substantially over the last century in many regions of the world. Resulting changes in glacial runoff not only affect the hydrological cycle, but can also alter the physical (i.e., turbidity from glacial flour) and biogeochemical properties of downstream ecosystems. Here we compare nutrient concentrations, transparency gradients, algal biomass, and fossil diatom spe...

This study examines the individual behavior of workers of the Formosan subterranean termite, Coptotermes formosanus Shirkai, on two consecutive days of tunnel construction. In each trial, a group of 30 termite workers was observed continuously during the first 60 min of construction of a new tunnel on two consecutive days. On each day, an average of 68% of individuals did not participate in tun...

The Iberian Peninsula possesses a particular richness of inland saline lakes which mainly occur in three endorheic regions in Aragón, La Mancha and Andalucía. The distribution of benthic microbial mat communities in these lakes is described and related to the ionic composition, salinity fluctuations, inundation period and sediment features. It was found that the cyanobacterium Microco1eu.s chth...