@article{fdi:010080890, title = {{U}nderstanding the impact of climate change on the oceanic circulation in the {C}hilean island ecoregions}, author = {{D}ewitte, {B}oris and {C}onejero, {C}. and {R}amos, {M}. and {B}ravo, {L}. and {G}arcon, {V}. and {P}arada, {C}. and {S}ellanes, {J}. and {M}echo, {A}. and {M}unoz, {P}. and {G}aymer, {C}. {F}.}, editor = {}, language = {{ENG}}, abstract = {{T}he largest changes in the circulation of the {S}outh-eastern {P}acific resulting from global warming are associated with the southward shift and intensification of the anticyclone and with coastal surface warming. {C}oastal upwelling is projected to be increase off central {C}hile, due to an increase in equatorward winds, although increased oceanic stratification and associated enhanced nearshore turbulence will yield an onshore deepening/flattening of the thermocline. {T}he overall increase in south-easterly trade winds of the {S}outh-eastern {P}acific in a warmer climate are likely to increase the connectivity pattern between {J}uan {F}ernandez and {D}esventuradas islands, and along the {S}ala y {G}omez ridge, through increasing wind-driven mean ocean currents. {D}eoxygenation associated with the warmer temperatures and changes in ventilation are likely to modify marine habitat and the respiratory barriers of species in the seamounts located in the vicinity of the limits of the minimum oxygen zone. {I}n the {S}outh-eastern {P}acific, the prevailing 2{D} understanding of the responses of marine life to climate change needs to be expanded to 3{D} approaches, integrating the vertical habitat compression of marine organisms as a result of ocean warming and deoxygenation, as climate velocities for temperature and oxygen have contrasting vertical and horizontal patterns. {T}here is a need for regional biogeochemical-coupled modelling studies dedicated to the {C}hilean islands in order to provide an integrated view of the impact of anthropogenic stressors (e.g. deoxygenation, increased stratification, and climate shift) at the scale required for addressing socio-ecological interactions. {A} refined understanding of the large-scale biogeography and spatial dynamics of marine populations through experimentation with high-resolution regional ocean models is a prerequisite for scaling-up regional management planning and optimizing the conservation of interconnected marine ecosystems across large scales.}, keywords = {{C}hile ; climate variability and change ; connectivity patterns ; oxygen ; minimum zone ; {P}acific {I}slands ; {CHILI} ; {PACIFIQUE} {SUD}}, booktitle = {}, journal = {{A}quatic {C}onservation : {M}arine and {F}reshwater {E}cosystems}, volume = {31}, numero = {2}, pages = {232--252}, ISSN = {1052-7613}, year = {2021}, DOI = {10.1002/aqc.3506}, URL = {https://www.documentation.ird.fr/hor/fdi:010080890}, }