%0 Journal Article
%T Limnological characterization of floodplain lakes in Mamirau¨˘ Sustainable Development Reserve, Central Amazon (Amazonas State, Brazil)
%A Affonso
%A Adriana Gomes
%A Queiroz
%A Helder Lima de
%A Novo
%A Evlyn M¨˘rcia Le£żo de Moraes
%J Acta Limnologica Brasiliensia
%D 2011
%I Scientific Electronic Library Online
%R 10.4322/actalb.2011.023
%X aim: this paper examines the spatial and temporal variation of limnological characteristics of floodplain lakes in the solim£żes and japur¨˘ confluence, an undisturbed region - the mamirau¨˘ sustainable development reserve (msdr); methods: we analyzed surface temperature, conductivity, ph, dissolved oxygen, turbidity and transparency, and surface water samples were collected for determination of suspended inorganic and organic matter, chlorophyll-a, pheophytin, total nitrogen, total phosphorus, organic and inorganic carbon, in two phases of the hydrograph stage, 2009 high water phase, 2008, 2009 and 2010 low water phases; results: the results showed that the studied water bodies have high variability in all measured variables: a) between hydrograph phases; b) among main rivers; and c) between opposite margins of japur¨˘ river; conclusions: this shows the remarkable influence of the flood pulse and the primary water source on the limnology of this system. the monitoring of physical and chemical limnological variables in mamirau¨˘ will serve as future reference for comparison with disturbed areas, such as the lower amazon, and as a baseline for modeling the effects of climate change and anthropogenic influences on amazon aquatic ecosystem.
%K limnology
%K undisturbed floodplain lakes
%K central amazon
%K mamirau¨˘ reserve.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2179-975X2011000100011&lng=en&nrm=iso&tlng=en