@article{fdi:010096325,
  title = {{S}ensitivity of fish diel vertical migration depths to future changes in the {P}acific {O}cean oxygen minimum zone},
  author = {{D}itkovsky, {S}. and {R}esplandy, {L}. and {D}alaut, {L}aureline and {B}arrier, {N}icolas and {L}engaigne, {M}atthieu and {M}aury, {O}livier},
  editor = {},
  language = {{ENG}},
  abstract = {{D}iel vertical migrations in the ocean play a key role in predator-prey dynamics and the functioning of the biological carbon pump. {H}owever, changes in ocean conditions including warming and deoxygenation threaten to significantly perturb vertical migration patterns over the twenty-first century. {S}pecifically, vertical migrations over regions of critically low oxygen, known as oxygen minimum zones ({OMZ}s), are likely to be most sensitive to changes in temperature and oxygen. {I}n this study, we apply a simplified prognostic ecosystem model ({APECOSM}-1{D}) to changing conditions in the {P}acific {O}cean {OMZ} as simulated by 13 {E}arth {S}ystem {M}odels from the {C}oupled {M}odel {I}ntercomparison {P}roject {P}hase 6 ({CMIP}6). {W}e find that modeled fish migration depths at a given location in the region may deepen or shoal by over 100 m by the end of the century; however, there are large uncertainties across the {CMIP}6 ensemble for the geographic pattern of migration depth changes. {T}o reconcile this, we adopt a water mass based approach which aggregates changes into regions defined by their vertical oxygen minimum value. {I}n this framework, we find that fish migration depths over the lowest oxygen core of the {OMZ} remain stable due to compensating changes in temperature and oxygen. {M}eanwhile, away from the {OMZ} core, ocean warming and deoxygenation together drive shallower migration depths in projected conditions.},
  keywords = {{CMIP}6 ; diel vertical migration ; hypoxia tolerance ; oxygen minimum zone ; water masses ; {PACIFIQUE}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {12},
  numero = {},
  pages = {1716557 [14 p.]},
  year = {2026},
  DOI = {10.3389/fmars.2025.1716557},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096325},
}