This is a long-term study (1993-1998) on the effects of increasing eutrophication on the crustacean zooplankton structure in a eutrophic reservoir. The study first demonstrates that the eutrophication increase verified is a phenomenon well described by a single abiotic variable: total phosphorus. During the study period, zooplankton suffered extensive qualitative and quantitative changes. Signi...

Study aimed at evaluating phytoplankton biodiversity changes in a shallow tropical reservoir during its hypertrophication process. Samplings were carried out monthly during 8 consecutive years (1997-2004) in 5 depths. Conspicuous limnological changes in the reservoir derived from the presence and/or removal of the water hyacinth, characterized 3 different phases. Over the time series, reservoir...

The aim of this study was to assess the major food items ingested by adult specimens of Daphnia laevis within the eutrophic Pampulha reservoir in Belo Horizonte, Minas Gerais, Brazil. The gut content was analyzed after addition of sodium hypochlorite and also through the examination of dissected guts under scanning electron microscopy. The results showed that Chlorophyceae was the main food ite...

Eutrophic reservoirs are characterized by excessive presence of plant and algal growth due to favourable environmental conditions, temperature, light nutrients. Human activities accelerate this phenomenon provoke dramatic changes the aquatic ecosystems. The monitoring water quality these ecosystems study effects they have on environment demand a large amount spatial temporal information, which ...

Replication of natural mixing through artificial water circulation techniques, such as convectional systems (CWCS), can break thermal stratification in stagnant and suppress algal blooms. Here, the field performance a novel CWCS was evaluated eutrophic reservoir (Shingal reservoir, South Korea) for three seasons between September 2016 2018. The deployed corner stagnated reservoir. changes tempe...