Dredging impact on an urbanized Florida bayou: effects on benthos and algal-preiphyton

摘要

Environmental effects of dredging events have been uncommonly reported for shallow, residential estuaries characteristic of the Gulf of Mexico region. The objective of this study was to determine the impact of hydraulic dredging on an urbanized estuary. Physicochemical quality, benthic community composition, whole sediment toxicity, periphytic algal community composition and Trace metal tissue quality were determined prior to and after dredging. The effects on surface water pH, dissolved oxygen, And temperature were negligible but photosynthetically active radiation was decreased at several stations.