High-arctic meromictic lake a
WebGarrow Lake (75° 23′ N; 96° 50′ W), located 3 km from the southern tip of Little Cornwallis Island and 6.7 m above mean sea level, is a meromictic ecto-creno-cryogenic lake with an area of 418 ha and a maximum water depth of 49 m. The thermal stratification of this lake is mesothermic (heliothermic). Web14 de set. de 2024 · Study area. Lake A (83800 0 N, 75°30 ’ W), Lake B (82858 0 N, 75826 0 W), Lake C1 (82851 0 N, 78°12 ’ W) and Lake C2 (82850 0 N, 78°05’W) (unofficial names) are meromictic lakes located on the northwestern coast of Ellesmere Island, Nunavut, Canada ().They were formed after isostatic rebound caused the isolation of …
High-arctic meromictic lake a
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WebHigh Arctic meromictic lakes are extreme environments characterized by cold temperatures, low nutrient inputs from their polar desert catchments and prolonged periods of low … Web19 de set. de 2012 · Arctic Perfluorinated chemicals (PFCs) have been recorded in many types of marine and freshwater ecosystems. The aim of the present study was to examine meromictic lakes and their catchments on the far northern coast of Ellesmere Island, Nunavut, Canada, and to evaluate the results in the context of climate change.
WebOther articles where High Arctic is discussed: polar ecosystem: …into the Low Arctic and High Arctic, according to various environmental and biological characteristics. Tundras … Web2 de mar. de 2009 · The distribution of archaeal amoA and 16S rRNA genes was evaluated in two marine-derived, meromictic lakes in the Canadian High Arctic: Lake A and Lake C1 on the northern coast of Ellesmere Island. The amoA gene was recorded in both lakes, with highest copy numbers in the oxycline. Sequence analysis showed that amoA from the …
WebJeg er miljøleder og for tiden i tillegg fungerende Sikkerhets- og kvalitetsleder i ett større utbyggingsprosjekt hos Bane NOR, og har over 12 års erfaring innen miljøovervåking og prosjektledelse. De siste årene har jeg hatt ansvaret for miljø-overvåking både innen Vannområder og samferdsel som utbygging av vei og jernbane. Foruten … Web20 de dez. de 2012 · Geochemistry of ice-covered, meromictic Lake A in the Canadian High Arctic. Aquat. Geochem. 8 97–119 [Google Scholar] Hammer Ø., Harper D. A. T., Ryan P. D. (2001). PAST: paleontological statistics software package for education and data analysis. Palaeontol.
Web2 de mar. de 2009 · Meromictic (permanently stratified) lakes are found in both the north and south polar regions, and are characterized by vertical gradients in their physical and chemical properties ( Priscu, 1997; Van Hove et al ., 2006 ), providing diverse potential habitats for microbial growth and niche differentiation.
WebThe geochemical processes occurring within meromictic Lake A (maxdepth 120 m) on northern Ellesmere Island, Canada, were investigated to determinethe history of the lake … townships in dickinson county miWebvolume of the lake to be available for net primary production. An example of this latter effect is given in Antoniades et al. (2009) who concluded that the deep layer of photosynthetic sulfur bacteria in high Arctic meromictic Lake A appeared to be more extensive and active under conditions of decreased snow and ice cover. The absence townships in emmet county miWeb20 de jan. de 2024 · The extreme geochemical and environmental conditions in meromictic ice-capped Lake A, in the Canadian High Arctic, provided an isolated, stratified model … townships in erie county ohioWeb7 de abr. de 2024 · Laboratory and statistical analyses. Lab analyses were consistent with previous research we have conducted for Lake Yojoa 19.Briefly, Chl-a was measured on a 10-AU fluorometer (Turner Designs Part ... townships in germistonWeb28 de ago. de 2012 · Here we sampled Lake A, a deep meromictic lake at latitude 83°N in High Arctic Canada. Sampling was before (May) and after (August) an unusual ice-out event during the warm 2008 summer. townships in durham county ncWebLake A, located at an elevation of ~ 4 m above sea level, has a surface area of 4.9 km2, a water volume of 98.1 x 106 m3, a maximum known PERFLUORINATED CHEMICALS IN … townships in erie county paWebal high arctic, meromictic lakes were discovered by Hattersley-Smith et al. (1970), and again, the deeper water (monimolimnion) was considered to be old sea * This is the … townships in gaylord mi