Hoogland, R.J.U.S. Fish and Wildlife Service Circular2010-02-152010-02-151967http://hdl.handle.net/1969.3/18962p. 19-23.Studies were initiated to determine how the estuarine biota is affected by environment modifications resulting from channelization, hydraulic spoiling, bulkheading, and filling. This report discusses the studies and some results.constructionestuariesenvironmental impactenvironmental effectsbiotaengineeringchannelsdredgingArticle