October 1–14, 2022
MMI conducted the second of six visual surveys as part of our Department of Energy–funded project to collect baseline data on the distribution and density of cetaceans and seabirds in Northern California and Oregon waters to inform the development of offshore wind energy. The survey took place aboard the MMI’s research vessel Pacific Storm
over the course of 8 days at sea (scheduled around 5 days ashore waiting for calmer seas). Seven of 14 tracklines were completed with an additional four partially completed (visual surveys for cetaceans and seabirds), photo-identifications of humpback whales, and echosounder and sea surface temperature and salinity data were collected. Cetaceans included blue, fin, gray, humpback, killer, minke, sei and sperm whales; Pacific white-sided dolphins and northern right whale dolphins (pictured here); Dall’s and harbor porpoise. Thirty-eight species of seabirds were observed, with the most numerous being Northern Fulmars, Cassin’s auklets, Pink-footed shearwaters, Black-footed albatross, Common Murres, and California Gulls.
Science team: Leigh Torres, Craig Hayslip, Dawn Barlow, Renee Albertson, Dawn Breese, Alexa Piggott, Will Kennerley.
August 10–23, 2022
The first of six surveys aboard MMI’s research vessel Pacific Storm successfully concluded after 11 days at sea (and 2 days waiting for winds to calm). All tracklines were completed (visual surveys for cetaceans and seabirds), three bottom-mounted hydrophones were deployed, ph
cations of humpback and blue whales, and echosounder and sea surface temperature & salinity data were collected, and a fantastic time was had by all. Cetaceans included blue, fin, humpback, gray, and sperm whales; P
acific white-sided and Risso’s dolphins; Dall’s and harbor porpoise. Seabirds included Buller’s and Sooty shearwaters; Black-footed and (1!) Laysan albatross; Fork-tailed and Leach’s storm petrels; Common Murres, Cassin’s and Rhinocerous
auklets; Red and Red-necked phalaropes; and one (each) Hawaiian and Murphy’s Petrel!
Science team: Lisa T. Ballance, Barb Lagerquist, Craig Hayslip, Dawn Barlow, Sabena Siddiqui, Mayah Baker, and Dawn Breese.
Figure: Tracklines, dates surveyed (colored lines), and hydrophone deployment locations (stars) for MOSAIC survey #1 aboard Pacific Storm.