Caracterización de macroinvertebrados bentónicos de dos ramales estuarinos afectados por la actividad industrial, Estero Salado-Ecuador

The purpose of this study was to assess composition, abundance and diversity of macroinvertebrates on two areas affected by industrial and domestic wastewater into two estuarine branches in the city of Guayaquil: Aventura Plaza and the Universidad de Guayaquil. Three samplings per site were performed using a Van Veen grab from 0.1 m at low tide in September 2012. No statistical differences were detected between in the variances of richness and abundance species, the most abundant was the nearest branch to estuarine Universidad de Guayaquil, where the most abundant taxa were Oligochaeta, presented the higher temperature and higher salinity. While the study sites were very poor and few diverse, could be related to emissions from municipal sewage and industrial uses that changed key parameters for the survival of estuarine species such as salinity, temperature and pH.