At the Pingorsuit Glacier in North-West Greenland, an organic-rich deposit that had recently emerged from retreating ice cap was discovered at elevation of 480 m above sea level. This paper reports on macrofossil analyses a coarse detritus gyttja and peaty soil, which occurred beneath thin cover till glacifluvial deposits. The sediments contained remains vascular plants, mosses, beetles, caddis...

Abstract Diatoms constitute a representative portion of the algal community freshwater aquatic environments, but their studies are centered mostly in south and southern regions Brazil, making microalgae biodiversity water bodies semiarid practically unknown. In state Ceará, few records Bacillariaceae region generally not identified at specific level. Denticula, Hantzschia, Tryblionella worldwid...

Aquaculture is a fast-growing sector in Russia. To grow fish to greater extent than for other agricultural objects, it necessary preserve and maintain natural habitat conditions. Minor changes the aquatic environment, such as pH, temperature fluctuations, presence of organic pollutants can lead decrease number fish. Use antibiotic drugs prevention treatment diseases farming change microbiocenos...

Purpose. The article is devoted to the study of Bashkir toponyms formed on basis phytonyms. main objective demonstrate phytotoponyms and determine laws their nomination. Results. authors describe models for formation derived from plant names conduct a comparative analysis with onomastic materials other Turkic languages. Of 10,000 geographical recorded, phytonyms are found in about 4 % toponyms....

Steppe and semi-desert lakes of Central Asia represent unique still poorly known aquatic ecosystems. The paper provides summaries multi-proxy environmental biological investigations the previously unexplored ground Sibe in naturally pristine zone East Kazakhstan, their contributions to people. Data on taxonomic composition zooplankton zoobenthos these freshwater lacustrine basins are presented ...

The Lake Siombak ecosystem is one of the important ecosystems in north coast Medan City, North Sumatra because it's a combination lake ecosystems, mangroves, and aquaculture areas. Therefore, it brings into habitat various flora fauna, both aquatic terrestrial area. This study aims to map spatial temporal distribution biota, especially birds mammals ecosystem. research was conducted Siombak, fr...

During the last century, industrialization has grown very fast and as a result heavy metals have contaminated many water sources. Due to their high toxicity, these pollutants are hazardous for humans, fish, aquatic flora. Traditional techniques removal adsorption, electro-dialysis, precipitation, ion exchange, but they all present various drawbacks. Membrane technology represents an exciting al...

This paper presents a model to assess strategies for bettering hexane condensation system from an olive oil extraction refinery in Portugal’s mountainous north. The water used as cooling fluid is discharged with higher temperature than the mountain river, provoking deterioration of aquatic flora and fauna, leading high environmental impact. allowed comparison solutions different temperatures di...

The increase in the energy requirement of a country shows its economic advancement. Coal mining activity has increased considerably to compensate for requirements. As result, open-cast coal methods induced drastic change land use and seriously jeopardized sustainability ecosystem. Once disrupted by or underground mining, condition cannot be entirely recovered, making it non-renewable asset envi...