A Good Start to SOCAL-14
We’ve were offshore the first few days of SOCAL-14 and pushed back closer to the mainland today with tougher offshore weather. Working around tiny Santa Barbara Island shrouded in fog early on we managed just one short tag deployment on a Risso’s dolphin out of over...
SOCAL-14 BEGINS!
For those of you who have followed the from-the-field blog for the Southern California Behavioral Response Study (SOCAL-BRS) before, welcome back and thanks for the interest and support over the past year regarding our publications and presentations. For others of you...
New Paper on “200 kHz” sonar with side lobes audible to marine mammals
On behalf of my co-authors, I would like to let you know about a new paper on the audibility of high frequency sonar systems to some marine mammals. We investigated the acoustic “leakage” of energy into side lobes from the 200 kHz center frequency of three...
IMO adopts guidelines to reduce underwater noise from commercial ships.
The International Maritime Organization (IMO) recently adopted guidelines to reduce underwater noise from commercial ships. The new guidelines: recognize that shipping noise can have short-term and long-term impacts on marine life; call for measurement of shipping...
New Paper on Spotted Seal Hearing
We are very happy to announce the recent publication on hearing and the masking effects of noise in spotted seals. This is the first-ever such measurement of hearing in this species both in air and under water. This study was conducted in highly controlled and quiet...