A new type of hydrophone, inspired by the ears of orcas, is reportedly much more sensitive than conventional devices. ... Because water is virtually incompressible, however, ...

The first method is passive acoustics, which involves placing a hydrophone in the water and simply listening. While many people associate this technique with listening to whale sounds, researchers can ...

The world of whales is an acoustic one. Beneath the water’s surface, visibility is limited. Chirps, clicks, bellows and the like are the language of cetaceans. But what’s being communicated with these ...

"We went out on a very cold January day, I had a hydrophone and my brother came out with me and he was taking field notes and I was just recording, dipping the hydrophone in the water whenever she ...

The research team used a directional hydrophone on MBARI's underwater observatory, ... The cooler, nutrient-rich water fuels blooms of tiny phytoplankton, ...

The CTBTO operates 11 stations globally, but only four hydrophone stations currently provide real-time data via IPMA. Their sparse geographic distribution further limits regional coverage.

The hydrophone will allow the searchers to listen for unusual Nessie-like underwater calls. Stretching 36km and with a maximum depth of 240m, the freshwater loch is the UK’s largest lake by volume.