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Lake Pyasino
Lake Pyasino () is a large freshwater lake in Krasnoyarsk Krai, north-central part of Russia. It is located at and has an area of 735 km2. Many rivers empty into the lake, including the Ambarnaya. Water from the lake emerges as the river Pyasina. Pyasino freezes up in October and stays icebound until June. Environmental pollution As the recipient of polluted wastewater from Norilsk Nickel's metallurgical plants, it is almost completely devoid of fish. Environmental studies has been performed and comparative analysis of the data on heavy metal concentrations, namely Cu, Ni, Zn, Cd and Hg, in fish ( burbot), moss, lichens, periphyton, hydric soils and snow in vicinity of Norilsk and further out in the most northern parts of the Taymyr Peninsula completed. Heavy metal concentrations in burbot liver were highest in Lake Pyasino compared to other study regions that were more than 100 km away.Zhulidov, A.V., Robarts, R.D., Pavlov, D.F. et alLong-term changes of heavy metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krasnoyarsk Krai
Krasnoyarsk Krai (, ) is a federal subjects of Russia, federal subject (a krai) of Russia located in Siberia. Its administrative center is the types of inhabited localities in Russia, city of Krasnoyarsk, the second-largest city in Siberia after Novosibirsk. Comprising half of the Siberian Federal District, Krasnoyarsk Krai is the largest krai in Russia, the list of subdivisions of Russia by area, second-largest federal subject in the country after neighboring Sakha Republic, Sakha, and the list of the largest country subdivisions by area, third-largest country subdivision by area in the world. The krai covers an area of , constituting roughly 13% of Russia's total area. Krasnoyarsk Krai has a population of 2,856,971 as of the 2021 Russian census, 2021 census. Geography The krai lies in the middle of Siberia, and occupies nearly half of the Siberian Federal District, almost splitting it in half, stretching from the Sayan Mountains in the south along the Yenisei River to the Tay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular plant, non-vascular flowerless plants in the taxonomic phylum, division Bryophyta (, ) ''sensu stricto''. Bryophyta (''sensu lato'', Wilhelm Philippe Schimper, Schimp. 1879) may also refer to the parent group bryophytes, which comprise Marchantiophyta, liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaf, leaves that are generally only one cell thick, attached to a plant stem, stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing sporangium, spores. They are typically tall, though some species ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Monitoring And Assessment
''Environmental Monitoring and Assessment'', first published in 1981, is a weekly, peer-reviewed, scientific journal published by Springer. The managing editor is G.B. Wiersma (University of Maine).NLM catalog U.S. National Library of Medicine. 2009.Home page Springer Science+Business Media. 2011. Aims and scope Data analysis The focus of this journal is the results of analyzed data pertaining to assessment and monitoring of risks that may affect the environment an ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taymyr Peninsula
The Taymyr Peninsula ( ) is a peninsula in the Far North of Russia, in the Siberian Federal District, that forms the northernmost part of the mainland of Eurasia. Administratively it is part of the Krasnoyarsk Krai Federal subject of Russia. Geography The Taymyr Peninsula lies between the Yenisei Gulf of the Kara Sea and the Khatanga Gulf of the Laptev Sea. Lake Taymyr and the Byrranga Mountains are located within the vast Taymyr Peninsula. Cape Chelyuskin, the northernmost point of the Eurasian continent, is located at the northern end of the Taymyr Peninsula. Etymology There are several theories about the origin of the name "Taimyr." The most widely accepted explanation is that it comes from the Evenki language, originating from the ancient Tungus word "tamura", which means "valuable, precious, rich." The Evenki people originally used this name for the Taimyr River, known for its abundance of fish. In the 19th century, thanks to the geographer and explorer Alexander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norilsk
Norilsk ( rus, Нори́льск, p=nɐˈrʲilʲsk) is a closed city in Krasnoyarsk Krai, Russia, located south of the western Taymyr Peninsula, around 90 km east of the Yenisei, Yenisey River and 1,500 km north of Krasnoyarsk. Norilsk is 300 km north of the Arctic Circle and 2,400 km from the North Pole. It has a permanent population of 176,735 as of 2024, and up to 220,000 including temporary inhabitants. It is the second-largest city in the region after Krasnoyarsk. Since 2016, Norilsk's population has grown steadily. In 2017, for the first time, migration to the city exceeded outflow. In 2018, according to Krasnoyarskstat, natural population growth amounted to 1,357 people: 2,381 were born, and 1,024 died. It is the world's List of northernmost items#Cities and settlements, northernmost city with more than 180,000 inhabitants, and the second-largest city (after Murmansk) inside the Arctic Circle. Norilsk and Yakutsk are the only large cities in the continuous permafrost zon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow
Snow consists of individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide, or Sublimation (phase transition), sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes Nucleation, nucleate around particles in the atmosphere by attracting supercooling, supercooled water droplets, which Freezing, freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns, and Hard rime, rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydric Soil
Hydric soil is soil which is permanently or seasonally saturated by water, resulting in anaerobic conditions, as found in wetlands. Overview Most soils are aerobic. This is important because plant roots respire (that is, they consume oxygen and carbohydrates while releasing carbon dioxide) and there must be sufficient air—especially oxygen—in the soil to support most forms of soil life. Air normally moves through interconnected pores by forces such as changes in atmospheric pressure, the flushing action of rainwater, and by simple diffusion. In addition to plant roots, most forms of soil microorganisms need oxygen to survive. This is true of the more well-known soil animals as well, such as ants, earthworms and moles. But soils can often become saturated with water due to rainfall and flooding. Gas diffusion in soil slows (some 10,000 times slower) when soil becomes saturated with water because there are no open passageways for air to travel. When oxygen levels b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periphyton
Periphyton is a complex mixture of algae, cyanobacteria, heterotrophic microbes, and detritus that is attached to submerged surfaces in most aquatic ecosystems. The related term Aufwuchs ( German "surface growth" or "overgrowth", ) refers to the collection of small animals and plants that adhere to open surfaces in aquatic environments, such as parts of rooted plants. Periphyton serves as an important food source for invertebrates, tadpoles, and some fish. It can also absorb contaminants, removing them from the water column and limiting their movement through the environment. The periphyton is also an important indicator of water quality; responses of this community to pollutants can be measured at a variety of scales representing physiological to community-level changes. Periphyton has often been used as an experimental system in, e.g., pollution-induced community tolerance studies. Composition In both marine and freshwater environments, algae – particularly green algae a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen
A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. . Lichens are the lifeform that first brought the term symbiosis (as ''Symbiotismus'') into biological context. Lichens have since been recognized as important actors in nutrient cycling and producers which many higher trophic feeders feed on, such as reindeer, gastropods, nematodes, mites, and springtails. Lichens have properties different from those of their component organisms. They come in man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burbot
The burbot (''Lota lota''), also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, or eelpout, is a species of coldwater ray-finned fish native to the subarctic regions of the Northern hemisphere. It is the only member of the genus ''Lota'', and is the only freshwater species of the order Gadiformes. The species is closely related to marine fish such as the common ling and cusk, all of which belong to the family Lotidae (rocklings). Etymology The name burbot comes from the Latin word ''barba'', meaning beard, referring to its single chin whisker, or barbel. Its generic and specific names, ''Lota lota'', comes from the old French ''lotte'' fish, which is also named "barbot" in Old French. Description With an appearance like a cross between a catfish and an eel, the burbot has a serpent-like body, but is easily distinguished by a single barbel on the chin. The body is elongated and laterally compress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Metals
upright=1.2, Crystals of lead.html" ;"title="osmium, a heavy metal nearly twice as dense as lead">osmium, a heavy metal nearly twice as dense as lead Heavy metals is a controversial and ambiguous term for metallic elements with relatively high density, densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary depending on the author and context and it has been argued that the term "heavy metal" should be avoided. A heavy metal may be defined on the basis of density, atomic number or chemical behaviour. More specific definitions have been published, none of which have been widely accepted. The definitions surveyed in this article encompass up to 96 out of the 118 known chemical elements; only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in science. A density of more than 5 g/cm3 is sometimes quoted as a commonly used criterion and is used in the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
