Friday, 26 June 2015

Blue and fin whale distribution in waters off Southern California

Date: June 25, 2015

Source: University of California - San Diego

Summary: A new study indicates a steady population trend for blue whales and an upward population trend for fin whales in Southern California.

Scripps marine acoustician Ana Širović and her colleagues in the Marine Bioacoustics Lab and Scripps Whale Acoustic Lab intermittently deployed 16 High-frequency Acoustic Recording Packages (HARPs)--devices that sit on the seafloor with a suspended hydrophone (an underwater microphone)--to collect acoustic data on whales off Southern California from 2006-2012.

Blue and fin whales are common inhabitants of the Southern California Bight, the curved region of California coastline with offshore waters extending from San Diego to Point Conception (near Santa Barbara, Calif.), but little is known about their use of the area.

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