Distribution, biomass, and demography of coastal pelagic fishes in the California Current Ecosystem during summer 2016 based on acoustic-trawl sampling

This report provides: 1) a detailed description of the acoustic-trawl method (ATM) used by NOAA’s Southwest Fisheries Science Center (SWFSC) to estimate the population sizes of the dominant species of coastal pelagic species (CPS), i.e., Pacific Sardine Sardinops sagax, Northern Anchovy Engraulis mordax, Pacific Mackerel Scomber japonicus, Jack Mackerel Trachurus symmetricus, and Pacific Herring Clupea pallasii, in the California Current Ecosystem (CCE) off the west coast of North America; and 2) estimates of the biomasses, distributions, and demographies of those CPS in the survey area between 28 June and 22 September 2016.