VÁCZI, Peter and Miloš BARTÁK. Summer season variability of dissolved oxygen concentration in Antarctic lakes rich in cyanobaterial mats. Czech Polar Reports. Brno: Masaryk University, 2011, vol. 1, No 1, p. 42-48. ISSN 1805-0689.
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Basic information
Original name Summer season variability of dissolved oxygen concentration in Antarctic lakes rich in cyanobaterial mats
Name in Czech Vaziablita koncentrace rozpuštěného kyslíku během letního období v antarktických jezerech s bohatými nárostovými společenstvy sinic
Authors VÁCZI, Peter (703 Slovakia, guarantor) and Miloš BARTÁK (203 Czech Republic, belonging to the institution).
Edition Czech Polar Reports, Brno, Masaryk University, 2011, 1805-0689.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW see_Vol.1_No.1
RIV identification code RIV/00216224:14310/11:00061547
Organization unit Faculty of Science
Keywords (in Czech) ostrov Jamese Rosse; kyslík; jezero Lachman 2
Keywords in English James Ross Island; Lachman Lake 2; oxygen
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: prof. Ing. Miloš Barták, CSc., učo 57. Changed: 28/10/2012 17:16.
Abstract
Since 2007, limnological investigation of terrestrial lakes has been carried out at James Ross Island, Antarctica. The lakes in scope differ in their size, origin, geomorphological and hydrological characteristics. In several selected lakes, dissolved oxygen is measured repeatedly each summer season in order to quantify lake- and weather-related differences. For this study, typical reresentatives of (i) coastal shalow lakes, and (ii) high-altitude lakes with cyanobacterial mats were chosen. We present data on dissolved oxygen measured in 3 d interval during January 2010. Within this time, water temperature decreased gradually from 13 to 3 degC, as well as dissolved oxygen concentration. It varied within in the range of 12.50-18.0 mg l-1 indicating the values close to saturation and suprasaturation, respectively. Dissolved oxygen concentration showed slightly decreasing trend in a course of time. In majority of cases, the lakes with rich cyanobacterial flora showed higher dissolved oxygen concentrations than Lachman Lake 2 which posses less cyanobacterial mats than other the lakes involved into the study. Due to air temperature decrease, Dulanek lake, a high-altitude lake, froze in the last week of January 2010.
Abstract (in Czech)
Článek se zabývá měřeník koncentrace rozpuštěného kyslíku v několika jezerech severní odledněné části ostrova Jamese Rosse jako odrazu fotosyntetické aktivity autotrofů (řas a sinic) vyskytujících se v těchto jezerech.
Links
LM2010009, research and development projectName: Projekt CzechPolar - České polární stanice: Stavba a operační náklady
Investor: Ministry of Education, Youth and Sports of the CR
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