In the News
Wait, There’s Noise Pollution at the Bottom of the Ocean?
How do you determine the health of a marine ecosystem that exists nearly 11,000 meters under the sea? Apparently, all you have to do is listen. And listening is exactly what National Oceanic and Atmospheric Administration oceanographer Robert Dziak and a team of researchers did in 2015, when they dropped specialized acoustic equipment into Challenger Deep, an area located in the Pacific Ocean at the bottom of the Mariana Trench.
What is at the bottom of the ocean?
This week, Tai takes a (figurative) deep dive into the darkest corners of the ocean on CBC's Tai Asks Why. (CBC) Bob Dziak is featured in the podcast.
Hearing the under-sea whispers of a warming climate
Scientists are using hydrophones, instruments that use underwater microphones, to collect clues about melting glaciers and the songs of whales. Bob Dziak is quoted.
Snapping Shrimp Pump Up the Volume in Warmer Water
For animals no longer than a stick of chewing gum, snapping shrimp make an impressive racket. En masse, they create what sounds like pervasive crackling, and the din gets even louder when the shrimp live in warmer water, new research has revealed. Bob Dziak is quoted.
Robotic gliders provide key tool to measure ocean sound levels
At a time when ocean noise is receiving increased global attention, researchers at Oregon State University and National Oceanic and Atmospheric Administration (NOAA) have developed an effective method to use an underwater robotic glider to measure sound levels over broad areas of the ocean. Joe Haxel is quoted.