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Zooplankton is one of the main components of biological communities in the marine ecosystems, these have been traditionally studied through net-sampling methods, but in recent years new technologies such as hydroacoustics have been implemented allowing improved estimates. The present study was used as a general model to correlate the hydroacoustic backscatter and dry weight biomass of zooplankton estimated from net tows. Samples were obtained during oceanographic cruise in May of 2016. Zooplankton biomass values were between 0.06 g / m2 and 1.04 g / m2, with average 0.53 g / m2 ± 0.23 g / m2, Nautical Area Scattering Coefficient (NASC) between 1.10 m2 / n.mi and 3.98 m2/n.mi2 (average 2.54 m2/n.mi2 ± 0.71 m2/n.mi2); The stations with highest acoustic density were those located more offshore (western sector of the gulf), while those with lower density were located closer to coastline, between the western and central sector of the gulf, the biomass coincided respectively with the hydroacoustic information. The relationship between zooplankton dry weight and backscatter was significant (p |
