Oceanwide Science Institute


Ecological Acoustic Recorder (EAR):

The EAR is a digital, low power acoustic recording system designed for long-term monitoring of natural and anthropogenic sounds in aquatic habitats. EARs have been used to study and monitor sounds produced in marine environments from the tropics to the Arctic. OSI produces, uses and leases two EAR models (EAR I & EAR II) in three housing configuration for different deployment scenarios. EARs can be programmed in a variety of ways and deployed for days, months or years at a time. To date, EARs have been used to track the occurrence of cetaceans, record long-term acoustic patterns on coral reefs, monitor vessel traffic in marine reserves, and study the acoustic signaling behavior of fish. Click here for more information.


OSI uses both standard and proprietary software tools for data collection, processing and analysis.  These include programs such as Triton, Ishmael, PAMguard, Audition, Raven Pro, R, StatPlus, Minitab and a variety of custom programs.  OSI staff members have expertise programming in several environments, including Matlab, LabView and Visual Basic and routinely develop new tools or modify existing ones as necessary.  We specialize in developing software tools for data acquisition, for signal detection, localization and classification, and for visualizing, quantifying and statistically analyzing acoustic signals.

Our vessel

OSI’s vessel ‘Coho’ is a 21’ walk-around cuddy-cabin manufactured by Reinell that is powered by a 210 hp Mercruiser V8 and a 9.9 Honda four-stroke auxiliary engine.  It is ideally suited for conducting coastal surveys, deploying instrumentation, and performing photo-ID and tagging work.  It is based in Lahaina, Maui, but can be shipped, as needed, to any location in Hawaii.