Cruise report for passive acoustic monitoring component of the 2013 Southern California-behavioral response study

Southwest Fisheries Science Center (U.S.)

"Our 2013 field study is the fourth year of this project. Leg 1 included two primary vessels: the source and visual search platform (M/V Truth) and a stand-alone PAM sailing research vessel (R/V Derek M. Baylis). On Leg 1, the PAM vessel carried three acousticians and three visual observers (with two of each on-duty at a time). On Leg 2, the towed hydrophone effort was reduced to two acousticians and was aboard the M/V Truth. During both legs of the cruise the M/V Truth also served as a base for two Rigid Hull Inflatable Boats (RHIB s) that were used for tagging and tracking. Animals were tagged using D-tags (which record behavior and acoustic data) and exposed to simulated Navy sonar signals transmitted from the M/V Truth and actual Navy sonar transmitted from Navy warships"--Introduction.

Administrative Report

California, Southern

National Marine Fisheries Service (NMFS)