4.6 Article

Multidisciplinary Observations across an Eddy Dipole in the Interaction Zone between Subtropical and Subantarctic Waters in the Southwest Atlantic

Journal

WATER
Volume 14, Issue 17, Pages -

Publisher

MDPI
DOI: 10.3390/w14172701

Keywords

subtropical rings; Subantarctic rings; CTD; ADCP; optical and hydrochemical parameters; methane; primary production; plankton; fish; birds and whales

Funding

  1. Ministry of Science and Higher Education of the Russian Federation [FMWE-2022-0001, FNNN20222-0001, 0211-2019-0007, FFER-2019-0021]
  2. Russian Science Foundation [21-77-2004]

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This study examines the seawater properties of two intense rings in the South Atlantic, which are separated from the Brazil Current and the Malvinas Current. The analysis includes optical properties, chemical parameters, methane concentration, and biological properties such as primary production, plankton, and fish. Observations of whales and birds in the region supplement the analysis of strong differences between the eddies.
Seawater properties in two intense rings in the South Atlantic are considered. One ring separated from the Brazil Current and the other from the Malvinas Current. The analysis is based on the CTD casts and SADCP measurements from the onboard velocity profiler. The optical properties, chemical parameters, methane concentration, and biological properties such as primary production, plankton, and fish were also analyzed. Analysis of strong differences between the eddies is supplemented by observations of whales and birds in the region.

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