JOINT RUSSIAN-BRAZILIAN RESEARCH OF THE AMAZON RIVER PLUME DURING THE 52nd CRUISE OF THE R/V “AKADEMIK BORIS PETROV”

The paper provides information about the international Russian-Brazilian field studies in largest river plume of World Ocean, on shelf northern part Brazil near mouth Amazon River. work was conducted from November 20 to 29, 2022, as scientific program 52nd cruise R/V “Akademik Boris Petrov”. research organized and implemented jointly by Russian Brazilian scientists. Measurements performed at 28 stations included CTD profiling sampling water different depth levels, zooplankton phytoplankton collection, well collection microplastic samples a towed Manta net. It is known that River source plastic litter into ocean, but such detailed distribution are very few. Petrov” territorial waters second ever expedition vessel this area, after 9th “Professor Shtokman” 1983. new made it possible obtain rare data unique region also, our opinion, became significant milestone development cooperation between BRICS countries.