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Index of Subjects Because whales communicate by sonar so any man made sound renders them uncommunicative. Slow the ships down! Ian On 2019-08-09 12:45, David Webster wrote: > Dear All, > > With respect to Right Whales in the Gulf of St. Lawrence and means > to prevent collisions, has any thought been given to alerting whales > of nearby ships ?; horn. Or alerting ships of nearby whales ?; sonar. > > Whales are intelligent and a standard code (e.g. long, long short) > transmitted by underwater speakers every few minutes at a frequency > within their audible range should quickly be associated with ships > nearby. > > Slowing to 10 knots may give more time for whales to evade > collision but why not use sonar ? > > Yt DW, Kentville
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