Ocean Sci., 16, 271–290, 2020 https://doi.org/10.5194/os-16-271-2020 © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. Dynamical connections between large marine ecosystems of austral South America based on numerical simulations Karen Guihou1,2,a,b, Alberto R. Piola1,2,3,4, Elbio D. Palma5,6, and Maria Paz Chidichimo1,2,4 1Servicio de Hidrografía Naval, Buenos Aires, Argentina 2Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina 3Departamento de Ciencias de la Atmósfera y los Océanos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina 4Instituto Franco-Argentino para el Estudio del Clima y sus Impactos (UMI-IFAECI/CNRSCONICET-UBA), Buenos Aires, Argentina 5Departamento de Física, Universidad Nacional del Sur, Bahía Blanca, Argentina 6Instituto Argentino de Oceanografía, CONICET, Bahía Blanca, Argentina acurrently at: NoLogin Consulting, Zaragoza, Spain bcurrently at: Puertos del Estado, Madrid, Spain Correspondence: Karen Guihou (
[email protected]) Received: 6 September 2019 – Discussion started: 11 September 2019 Revised: 5 December 2019 – Accepted: 27 December 2019 – Published: 2 March 2020 Abstract. The Humboldt Large Marine Ecosystem (HLME) ability of the transport are also addressed. On the southern and Patagonian Large Marine Ecosystem (PLME) are the PLME, the interannual variability of the shelf exchange is two largest marine ecosystems in the Southern Hemisphere partly explained by the large-scale wind variability, which and are respectively located along the Pacific and Atlantic in turn is partly associated with the Southern Annular Mode coasts of southern South America. This work investigates the (SAM) index (r D 0:52).