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Report on the Summer 2019 California Current Ecosystem Survey (1907RL), 13 June to 9 September 2019, conducted aboard NOAA Ship Reuben Lasker, Fishing Vessels Lisa Marie and Long Beach Carnage, and three unmanned sailboats
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2020
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Description:The Summer 2019 California Current Ecosystem Survey (1907RL) was conducted by the Fisheries Resources Division (FRD) of the Southwest Fisheries Science Center (SWFSC) aboard NOAA Ship Reuben Lasker (hereafter, Lasker), fshing vessels Lisa Marie and Long Beach Carnage, and three unmanned sailboats (Fig. 1), 13 June to 9 September 2019. The Acoustic-Trawl Method (ATM) was used to assess coastal pelagic fish species (CPS) and krill within the CCE. Data were collected using multi-frequency echosounders, surface trawls, obliquely integrating net tows, a continuous underway fish-egg sampler (CUFES), and conductivity-temperature-depth probes (CTDs). The objectives for the survey were to: 1) acoustically map the distributions and estimate the abundances of CPS, i.e., Pacifc Sardine Sardinops sagax, Northern Anchovy Engraulis mordax, Pacifc Herring Clupea pallasii, Pacifc Mackerel Scomber japonicus, and Jack Mackerel Trachurus symmetricus; and krill (euphausiid spp.); 2) characterize and investigate linkages to their biotic and abiotic environments; 3) gather information regarding their life histories; and 4) use fshing vessels and unmanned surface vehicles (USVs) to sample in off ̀‡shore and nearshore areas when and where sampling from NOAA ships is inefficient, unsafe, or both (Fig.1).
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Rights Information:Public Domain
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