@article{fdi:010074787,
  title = {{E}valuating the potential impacts of the diurnal vertical migration by marine organisms on marine biogeochemistry},
  author = {{A}umont, {O}livier and {M}aury, {O}livier and {L}efort, {S}. and {B}opp, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}iurnal vertical migration ({DVM}) of marine organisms is an ubiquitous phenomenon in the ocean that generates an active vertical transport of organic matter. {H}owever, the magnitude and consequences of this flux are largely unknown and are currently overlooked in ocean biogeochemical models. {H}ere we present a global model of pelagic ecosystems based on the ocean biogeochemical model {NEMO}-{PISCES} that is fully coupled to the upper trophic levels model {A}pex {P}redators {ECOS}ystem {M}odel, which includes an explicit description of migrating organisms. {E}valuation of the model behavior proved to be challenging due to the scarcity of suitable observations. {N}evertheless, the model appears to be able to simulate approximately both the migration depth and the relative biomass of migrating organisms. {A}bout one third of the epipelagic biomass is predicted to perform {DVM}. {T}he flux of carbon driven by {DVM} is estimated to be 1.05 +/- 0.15 {P}g{C}/year, about 18% of the passive flux of carbon due to sinking particles at 150 m. {C}omparison with local studies suggests that the model captures the correct magnitude of this flux. {O}xygen is decreased in the mesopelagic domain by about 5 mmol m(-3) relative to simulations of an ocean without {DVM}. {O}ur study concludes that {DVM} drives a significant and very efficient flux of carbon to the mesopelagic domain, similar in magnitude to the transport of {DOC}. {R}elative to a model run without {DVM}, the consequences of this flux seem to be quite modest on oxygen, due to compensating effects between {DVM} and passive fluxes.},
  keywords = {ocean ; biogeochemistry ; ecosystem ; carbon cycle ; diurnal vertical ; migration ; export},
  booktitle = {},
  journal = {{G}lobal {B}iogeochemical {C}ycles},
  volume = {32},
  numero = {11},
  pages = {1622--1643},
  ISSN = {0886-6236},
  year = {2018},
  DOI = {10.1029/2018gb005886},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074787},
}