no, radar is used
Sonar can be used to locate large shoals of fish.
Sonar uses echoes to locate objects by bouncing sound waves off them and detecting the echoes.
sonar hydrophones
sonar
Sonar
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SONAR
A sub spotter is typically called a Submarine Sonar Technician or Sonar Operator. Their role is to detect and locate enemy submarines using sonar technology.
Sonar is the generic name of the technology that is used to locate objects underwater. Sonar systems are of two basic types - active and passive. In active sonar the system let's out a pulse of sound and then the operator listens for echoes. The passive sonar the operator listens to sounds emitted by the object one is trying to locate.
They have a sonar and they use it to catch prey
Sonar
Scientsts use sonar to map the depth of water in sea and river etc..,they also use sonar to locate and identify object underwater