Report on the Summer 2021 California Current Ecosystem Survey (CCES) (2107RL), 6 July to 15 October 2021, conducted aboard NOAA ship Reuben Lasker, Mexican research vessel Dr. Jorge Carranza Fraser, fishing vessels Lisa Marie and Long Beach Carnage, and uncrewed surface vehicles

The Summer 2021 California Current Ecosystem Survey (CCES) (2107RL) was conducted by the Fisheries Resources Division (FRD) of the Southwest Fisheries Science Center (SWFSC) aboard NOAA ship Reuben Lasker (hereafter Lasker) (Fig. 1), 6 July to 15 October 2021, and augmented by data collected from the Mexican research vessel Dr. Jorge Carranza Fraser (hereafter Carranza), fshing vessels Lisa Marie and Long Beach Carnage, and uncrewed surface vehicles (USVs; Saildrone, Inc.). The Acoustic-Trawl Method (ATM) is routinely used to assess coastal pelagic fsh species (CPS) and krill within the California Current Ecosystem (CCE), between Vancouver Island, British Columbia and San Diego, CA. In 2021, for the first time, the survey extended southward to central Baja California, Mexico. Data were collected using multi-frequency echosounders, surface trawls, obliquely integrating net tows, a Continuous Underway Fish-Egg Sampler [CUFES; Checkley et al. (1997)], and conductivity-temperature-depth probes (CTDs). 2022 SWFSC Southwest Fisheries Science Center CCES California Current Ecosystem Survey NMFS (National Marine Fisheries Service) SWFSC (Southwest Fisheries Science Center) OMAO (Office of Marine and Aviation Operations) CIMEAS (Cooperative Institute for Marine, Earth, and Atmospheric Systems) Submitted https://doi.org/10.25923/cadh-x974 Public Domain 2265