Low water quality in tropical fishponds in southeastern Brazil

The present study however, indicated that Cyanobacteria was more frequent in the fishponds after the fish grow-out period (April), and the water quality should be monitored

In the impacted and natural areas the phosphorus and nitrogen concentrations were significantly higher (Mann-Whitney; p < 0.05) in the low-water period than in the filling and

This study aimed to inventory the fauna of water beetles, larvae and adults, in two mountainous regions in the state of São Paulo, in Serra da Mantiqueira (Parque Estadual de Campos

As the water bodies characterized by low nitrogen and phosphorus concentrations are more vulnerable to external disturbances, as in the stream that receives the effluents of

CC= close to cages in the open-pond, WO= water outlet, IW12= water inlet receiving effluents from 12 fishponds, IW6= water inlet receiving effluents from 6 fishponds, IWM= water

Figure 5. Longitudinal profiles of the simulated water quality parameters and water quality data monitored at points 3 to 6... and sedimentation of inorganic phosphorus) in

Conforme afirma D’Ambrósio (1987, p 22), “a etnomatemática se situa numa área de transição entre a antropologia cultural e matemática que chamamos academicamente

The low levels of bacterial production in Urca Inlet and Central Channel are due to a better water quality condition, measured by low nutrients and dissolved organic