High-arctic meromictic lake a

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Web28 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. Web1 de set. de 2024 · Meromictic lakes are few in the world compared to holomictic lakes with some examples being Lake Tanganyika (the deepest lake in Africa), Lake Kivu, Kaptai Lake, Jellyfish Lake, Lake Cadagno, the Great Salt …

Coupled landscape–lake evolution in High Arctic Canada

WebThe geochemical processes occurring within meromictic Lake A (maxdepth 120 m) on northern Ellesmere Island, Canada, were investigated to determinethe history of the lake and to provide a baseline for future studies. The lake contained seawaterdiluted by freshwater input that had been mixed prior to the lake's isolation from tidalaction. WebSpatial and temporal variability in a High Arctic meromictic lakeBy Sophie CharvetAbstract #914 to be presented at the IPY Montreal ConferenceFrostBytes -- '... eagle 55 pallet jack wheels

The comparative limnology of high arctic, coastal, meromictic lakes

Web20 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 … Webvolume 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 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 … eagle 6252w-bu

[PDF] Perfluorinated Chemicals in Meromictic Lakes on the …

(PDF) Microbial communities involved in aerobic and

WebSuspended sediment transport and deposition in a high arctic meromictic lake by: Retelle, Michael, et al. Published: (1996) Streamflow and suspended sediment transfer to Lake Sophia, Cornwallis Island, Nunavut, Canada by: Braun, C., et al. Published: (2000) Sediment Transport in the Tanana River near Fairbanks, Alaska ... Web7 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 ... csh jr sr high schoolWeb1 de jul. de 2024 · the area and compared them with High Arctic counterparts to assess regional signals during the past millennium. Study site Lake A (unofﬁcial name, 83°00.00′N, 75°30.00′W) is a meromictic lake located at ~4 m above sea level (a.s.l.) in a 36-km 2 unglacierized catchment on the northern coast of Ellesmere Island, Nunavut ( Fig. 1). eagle 60gallon safety cabinet

"WebArctic. The northern coastline of high Arctic Canada con-tains a series of meromictic (salinity stratified) lakes that retain their ice cover throughout most of the year. One of these lakes, named Lake A (Figure 1), was discovered in 1969 [Hattersley-Smith et al., 1970; Van Hove et al., 2006, and references therein], and like similarly ... " - High-arctic meromictic lake a

High-arctic meromictic lake a

Simulated heat storage in a perennially ice&covered high Arctic lake ...

Web13 de mai. de 2024 · We sampled a highly stratified meromictic lake near the northern limit of the Canadian High Arctic, a region in rapid transition due to climate change. We … WebAbstract 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.

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A meromictic lake is a lake which has layers of water that do not intermix. In ordinary, holomictic lakes, at least once each year, there is a physical mixing of the surface and the deep waters. The term meromictic was coined by the Austrian Ingo Findenegg in 1935, apparently based on the older word holomictic. The concepts and terminology used in describing meromictic lakes were essentially complete following some additions by G. Evelyn Hutchinson in 1937. 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 …

WebElevated surface paleobrine temperatures (average 85.6 °C) are reported here from Cretaceous marine halites in the Maha Sarakham Formation, Khorat Plateau, Thailand. Fluid inclusions in primary subaqueous “chevron” and “cumulate” halites associated with potash salts contain daughter crystals of sylvite (KCl) and carnallite (MgCl2·KCl·6H2O). … Web13 de mai. de 2024 · Lake A, on the far northern coast of Ellesmere Island in the Canadian High Arctic, is a meromictic lake that has received much limnological attention since its …

Web1 de jun. de 2002 · Lake A is a salinity-stratified, ice-capped lake located in a polar desert catchment on northern Ellesmere Island, Nunavut, Canada that has been the site of … WebThe Lake C2 series is the first non-ice cap, high resolution late-Holocene environmental record from the Canadian high arctic. The composite varve series compares favorably …

WebSeasonal variations in community structure of anoxygenic phototrophic bacteria from the meromictic Lake Trekhtsvetnoe (Kandalaksha Bay, White Sea ... Wierzchos J., Vincent W.F., Quesada A. Microstructure and cyanobacterial composition of microbial mats from the High Arctic // Biodivers. Conserv. 2015. V. 24. P. 841–863. Edgar R.C ...

WebVertical structure of archaeal communities and the distribution of ammonia monooxygenase A gene variants in two meromictic High Arctic lakes Jérémie Pouliot,1 Pierre E. Galand,1,2 Connie Lovejoy1 and Warwick F. Vincent3* 1Département de Biologie and Québec-Océan, Université Laval, Québec, QC G1V 0A6, Canada. eagle 5 gallon gas cansWeband four meromictic lakes (Lakes A, C1, C2, C3) were sam-pled on the northern coast of Ellesmere Island. Additional measurements were obtained at meromictic Romulus Lake further to the south on Ellesmere Island near Eureka, and at Char Lake, a freshwater lake in Resolute Bay on Cornwallis Island. The mean annual air temperatures at these sites ... eagle4 firmwareWeb开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 eagle 5 gal gas cansWeb× Close. The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. eagle 6500k led 3m/nm whWeb19 de set. de 2012 · Our analyses revealed the presence of several PFCs in catchment snowpack, inflowing streams, lake water, and the aquatic food web of Lake A (83˚00 ʹ N, … cshjvpcprtshn01.nsn-intra.netWeb19 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. eagle 67 f1WebA meromictic lake is a lake which has layers of water that do not intermix. [1] In ordinary, holomictic lakes, at least once each year, there is a physical mixing of the surface and the deep waters. [2] The term meromictic was coined by the Austrian Ingo Findenegg in 1935, apparently based on the older word holomictic. csh job vacancies