Marine researchers and scientists have long sought a practical way to track the position and migration of fish in the world’s oceans in order to provide research data for stock management and fish conservation.
Sigmur Gudbjornsson, Managing Director of Stjornu-Oddi, the Icelandic lead partner in EUREKA project E! 2326 GPSFISH, describes how they solved the problem by having ships “transmit by sonar GPS (global positioning satellite) data which is then stored on any fish that has been previously tagged within a 5 km range.”
As tagged cod, plaice or salmon swim, other sonar pings are recorded from vessels equipped with sonar developed by the Norwegian project partner, Simrad. The tag stores the sonar’s position at the time and date it was pinged. This turns the tagged fish into an important research instrument, gathering vital information on the species.
Nicola Vatthauer | alfa
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