2021-03-232003-01-0101229761SCOPUS;2-s2.0-85006829015http://hdl.handle.net/10784/26922Thirteen deep-sea samples (core-tops) from the Panama Basin, Colombian Pacific, were analysed for benthonic foraminifera in the >150µm size fraction. Based on the microfaunal content, three zones are recognised in the Panama Basin: (1) northern euphrophic region (~8° to 5,5°N), characterized by a high concentration of organic matter flux to the seafloor, oxygenated sediments, and influence of the Panama Bight and the Costa Rica Dome upwelling systems, (2) mesotrophic region (~5,5 to 2°N), characterized by low fluxes of organic carbon to the seafloor, oxygenated sediments, terrigenous influence and fluctuations of the upwelling systems of the basin, and (3) southern euphotic region (south of ~2°N), characterized by a larger organic carbon flux to the seafloor, low oxygen content (disoxia) and influence of the Equatorial Divergence.spahttps://v2.sherpa.ac.uk/id/publication/issn/0122-9761info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessBenthonic foraminiferaDeep-sea sedimentsEastern equatorial pacificMicropaleontologyOxygenationPanama BasinAcceso abierto2021-03-23Betancur M.J.Martínez I.