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Hydrophones



Seven hydrophones (underwater microphones) monitor the underwater acoustic space near OrcaLab. This network of listening stations enables the orcas to be followed as they move about much of the area of Johnstone Strait and Blackfish Sound. The hydrophones are monitored 24 hours/day throughout the year, and recordings of orcas are made whenever they are vocal. The result is a data base of around 1000 hours of recordings each year. OrcaLab's hydrophones are the source of the sounds heard on the archive section of this site, and are also the source of the sounds heard during the LIVE season.

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