Cruise report, NOAA Ship Oscar Elton Sette, Cruise SE-15-01, April 3-14 , 2015, Operations were conducted in the waters of the North Pacific along the 159°W meridian from 26.5°N to 32.5°N NOAA Ship Oscar Elton Sette, Cruise SE-15-01, April 3-14 , 2015, Operations were conducted in the waters of the North Pacific along the 159°W meridian from 26.5°N to 32.5°N

"Stepped oblique mid-water Cobb trawls of the shallow, nighttime sound scattering layer were conducted at stations spanning the North Pacific subtropical frontal zone (STFZ). Conductivity-temperature-depth (CTD) casts to 1000 m depth were conducted every 0.25° latitude across the STFZ. Two-hour acoustic transects were conducted every 0.5° latitude across the STFZ, as well as during both daytime and nighttime at trawling stations. Acoustic backscatter, and surface temperature and salinity were collected continuously throughout the project"--Type of operation. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center. "Issued 22 May, 2015." System requirements: Adobe Acrobat Reader.