Biomass estimation is a method of detecting and quantifying fish and other marine organisms using sonar technology.

Its job was to prove the new sonar technology and the navigational reliability of the Whirlwind.

In addition, sonar technology gave an edge to catching and detecting fish.

His work was instrumental in the development of side-scan sonar technology, used to scan the sea floor for wrecks.

Their primary shortcomings were insufficient noise damping (American boats were quieter) and sonar technology.

Animal welfare groups suggest alternatives such as surf lifesaving, public education on shark behaviour, radio signals, sonar technology and electric nets.

Later on, Batman uses a sonar technology developed by Fox in order to track down and capture the Joker.

Using the latest sonar technology, it senses the head position of the operator through a triangular bar fitted with tiny microphones.

He went on to a successful career in sonar technology in New London, Ct.

The area was last surveyed in 1939 with sonar technology, agency officials said.