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Sounds

THE ODYSSEY HEADS BACK TO THE GULF

By | Ocean Alliance News, Odyssey, Sounds, Technology, Whales | No Comments

Odyssey with acoustic gearThe RV Odyssey is preparing to leave on October 29th for a 21-day bioacoustic research trip into the Gulf of Mexico with a team from the Scripps Institution of Oceanography under the direction of Dr. John Hildebrand.

The Odyssey and crew will be working in familiar territory, they will be running down the deep water drop-off in the Gulf of Mexico where they have been working the last 4 summers in response to the Gulf Oil Spill in 2010.

The Scripps team will be deploying HARPS – acoustic monitoring devices on the floor of the ocean.  They will also be picking up HARPS that the Odyssey deployed almost 10 months ago.

“I am interested in how sound is used by marine mammals and how sound can be used as a tool for assessment of marine mammal populations. Recent advancements in acoustic recording technology have allowed long-term and broad-band records of underwater sound to be collected. These recordings open new windows into the behavior and distribution of marine mammals (as well as other marine organisms such as fish).”  -Dr. John Hildebrand

Scripps/Odyssey team loading the boatAcoustic gear

 

 

 

 

 

Photo 1. 4 large containers of equipment arrive at the Odyssey in Key West

Photo 2.  Crew manhandling weights aboard Odyssey. 50 pound weights are used to drop acoustic packs to the sea floor.  80 are loaded aboard Odyssey – 4,000 pounds or 2 tons

Photo 3.  Acoustic gear being loaded aboard Odyssey.

 

 

Ever wondered what a boat ‘looks’ like to dolphins and whales underwater?

By | Gulf of Mexico, Ocean Alliance News, Odyssey, Sea Shepherd Australia, Sounds | No Comments
[sws_picture_frame10 src=”http://www.whale.org/wp-content/uploads/2013/07/passingship.jpg” title=”” alt=”” align=”sws_frame_left” lightbox=”1″ album=”” video=””] [/sws_picture_frame10] Whales and dolphins spend a lot of their lives in a dark underwater world. Instead of ‘seeing’ the underwater world, they ‘hear’ it.  They live in a world of sound as against sight.

This particular recording is taken from the 100 meter hydrophone array that is towed behind the RV Odyssey. A series of underwater microphones, more properly called  hydrophones, are used to help the crew find their principle study species, the sperm whale. In this particular recording you can hear the propellers of a passing cargo ship almost 5 miles away passing the Odyssey in the Gulf of Mexico. Read More