Could Slower Ships Help The Orcas?

2018-01-16T11:17:50+00:00 January 9, 2018|

(Credit: Dave Ellefrit/ Center for Whale Research) To the human eye, big ships cruising along the west side of San Juan Island this summer might have looked like they were traveling in slow motion. To the perceptive ears of killer whales, those same ships might have sounded a little bit quieter. (From Oregon [...]

Marine Robots Detect Whales In The Deep Ocean

2017-12-29T10:31:40+00:00 December 29, 2017|

(Credit: University of East Anglia) Scientists at the University of East Anglia have been recording the sounds made by whales and porpoises off the coast of northern Scotland – using a fleet of pioneering marine robots. (From -- From the metallic clicks of deep-diving sperm whales to the eerie whistles made by pods of [...]

Ocean Sound Waves May Reveal Location Of Incoming Objects

2017-11-02T09:06:22+00:00 November 2, 2017|

New acoustic analysis could pinpoint impacts by meteorites or possibly plane debris. The ocean can seem like an acoustically disorienting place, with muffled sounds from near and far blending together in a murky sea of noise. Now an MIT mathematician has found a way to cut through this aquatic cacaphony, to identify underwater sound waves generated by objects impacting the ocean’s surface, such as debris from meteorites or aircraft. The results are published this week in the online journal Scientific Reports.

Scientists Identify Source of Mysterious Sound in the Southern Ocean

2014-04-24T17:00:19+00:00 April 24, 2014|

(Click to enlarge) A group of Antarctic minke whales.(Credit: Ari S. Friedlaender, Oregon State University) Scientists have conclusive evidence that the source of a unique rhythmic sound, recorded for decades in the Southern Ocean and called the “bio-duck,” is the Antarctic minke whale (Balaenoptera bonaerensis). (From ScienceDaily) — First described and named by [...]