Short-term variability of bacterioplankton in the maximum turbidity zone in the Paranaguá Bay, Southern Brazil, and its relationship with environmental variables

Abstract

In this work, the density of bacterioplankton, bacterial biomass and environmental variables were monitored in two seasons (summer and winter), two times each month (spring tide and neap tide sampling), over a 12 h period, comprising a tidal cycle (semidiurnal), from subsurface and bottom waters, in a fixed station in the Estuarine

Observation of an Estuarine Turbidity Maximum in the Highly Impacted Capibaribe Estuary, Brazil

“…Some papers have reported ETM processes in Paranaguá Bay (PR) (e.g., RIBEIRO et al, 2011), although the higher turbidity zone in that estuary is linked rather to re-suspension due to tidal currents (MANTOVANELLI et al, 2004) than to the occurrence of a true ETM. Other studies on SPM in southern Brazilian estuaries have not reported the presence of ETM (SCHETTINI; TOLDO JÚNIOR, 2006;D´AQUINO et al, 2010).…”