News tagged with sonar systems

For pollock surveys in Alaska, things are looking up

Shelikof Strait, in the Gulf of Alaska, is an important spawning area for walleye pollock, the target of the largest—and one of the most valuable—fisheries in the nation. This year, a team of NOAA Fisheries scientists ...

dateMay 21, 2015 in Ecology
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Ultrasound technology made to measure

The range of uses for ultrasound is gigantic; the applied technologies are just as diverse. Researchers are now covering a wide range of applications with a new modular system: From sonar systems to medical ultrasound technologies ...

dateJan 06, 2015 in Engineering
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Whales hear us more than we realize

Killer whales and other marine mammals likely hear sonar signals more than we've known. That's because commercially available sonar systems, which are designed to create signals beyond the range of hearing of such animals, ...

dateMay 01, 2014 in Plants & Animals
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