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Long term picoplankton dynamics in a warm-monomictic, tropical high altitude lake
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SYSNO ASEP 0328736 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Long term picoplankton dynamics in a warm-monomictic, tropical high altitude lake Title Analýza dlouhodobého rozvoje pikoplanktonu v teplém-monomiktickém tropickém jezeru velké nadmořské výšky Author(s) Macek, Miroslav (BC-A) RID
Alcocer, J. (MX)
Lugo Vázquez, A. (MX)
Martínez-Pérez, M.E. (MX)
Peralta Soriano, L. (MX)
Vilaclara Fatjó, G. (MX)Source Title Journal of Limnology. - : PagePress - ISSN 1129-5767
Roč. 68, č. 2 (2009), s. 183-192Number of pages 10 s. Language eng - English Country IT - Italy Keywords athalassohaline lake ; picoplankton ; anoxia ; bacteria ; chlorophyll-a Subject RIV DA - Hydrology ; Limnology R&D Projects ME 296 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000268778300003 DOI 10.3274/JL09-68-2-03 Annotation An athalassohaline Lake Alchichica (Puebla, Mexico) was studied for 5 years. The overturn occurred during the early dry, cold season while the stratification was pronounced in the late dry- and the rainy-season. Anoxic conditions in the hypolimnion lasted about 9 months. The annual mean concentrations of chlorophyll-a were below 4 μg/L in 1998, 1999 and 2001, however, over 5 μg/L in 2000 and 2002. The highest picoplankton (TPP) values were found during mixing and early stratification (January-March). The minimum numbers were present during late stratification (October-November). The maximum TPP were observed within the layer 0-20 m, which corresponded to the epilimnion during the stratification period. Neither the thermocline nor the deep chlorophyll maximum showed an elevated TPP concentration. In the hypolimnion, TPP numbers were low apparently as a result of the long period of anoxia. Notwithstanding autotrophic picoplankton contributed even up to 30% of TPP. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2010
Number of the records: 1