Program For The Human Environment News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Comments Off on Quieter Oceans Offer a Rare Chance to Listen WOODS HOLE, Massachusetts, April 21, 2021 (ENS) – Coronavirus pandemic travel restrictions and economic slowdowns slammed the brakes on human activities in the oceans starting last spring and ongoing. Noise levels are down as cargo ships, cruise ships, and seafloor exploration vessels have slowed or stopped their operations. The relative silence creates a unique moment for scientists to begin a time-series study of the impacts of human sounds on marine life they have planned for years. Using hydrophones, microphones that detect s...

“We’d like the word soundscape to become a lot better known. Sound is light in the oceans. It illuminates the ocean for many animals. They use it to communicate, to hunt, and can be harmed by noise at excess,” Ausubel said. He and colleagues – including specialists at St Andrews – plan to expand the hydrophone network, particularly in the southern hemisphere, to more than 500 devices. Using modelling and data collaborations with shipping companies and other ocean users, they hope to produce a global map of ocean sound within the coming years. This should reveal import...

The Covid-19 lockdown has produced the quietest year for the world’s oceans in recent memory, according to a group of scientists working on a global map of underwater soundscapes. Noise pollution from ship engines, trawling activities, oil platforms, subsea mining and other human sources declined significantly last spring, say the researchers, who are part of a collaborative network of 231 non-military hydrophones. They believe the relative hush...

A network of hydrophones studies the seas during a time when they are unusually quiet.

300 New Delhi, April 9 Travel and economic slowdown due to the Covid-19 pandemic have combined to put the brakes on shipping, seafloor exploration, and many other human activities in the ocean, creating a unique moment to begin a time-series study of the impacts of sound on marine life. A community of scientists has identified more than 200 non-military ocean hydrophones worldwide and hopes to make the most of the unprecedented opportunity to pool their recorded data into the 2020 quiet ocean assessment and to help monitor the ocean soundscape long into the future. They aim for a total of 50...