Underwater Noise Radiation from Dredging and the Zones of Masking that Impact Manatee Hearing in the Lower St. Johns River, Jacksonville, FL

The purpose of this study was to record and analyze underwater acoustic characteristics ofhydraulic dredging in the St. Johns River, Duval Co., Florida and evaluate possible noiseimpacts in the waterway with respect to manatee hearing.

Publisher - City of Jacksonville (COJ), Jacksonville Waterways Commission (JWC)

Subjects - Mammal, Manatee

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Citation: Gerstein ER, Blue JE, Pinto GF, Barr S. 2006. Underwater Noise Radiation from Dredging and the Zones of Masking that Impact Manatee Hearing in the Lower St. Johns River, Jacksonville, FL. Jacksonville (FL): City of Jacksonville (COJ), Jacksonville Waterways Commission (JWC); Final draft - contract No. 8548. 55 pp.