Abstract

One aspect of the feasibility of an acoustically based manatee detection system relies upon the distance in which a manatee vocalization is detectable. The magnitude of environmental noise, manatee vocalizations, as well as the acoustic spreading properties of the habitat need to be considered to estimate the detection range of a vocalizing manatee. The simulation presented combines measured source levels of manatee vocalizations with the modeled acoustic properties of manatee habitats to illustrate the effective ranges in which manatees are detectable. The simulation indicates that background noise significantly affects the detectable range.

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