@article{fdi:010067777,
  title = {{R}ole of zooplankton dynamics for {S}outhern {O}cean phytoplankton biomass and global biogeochemical cycles},
  author = {{L}e {Q}uere, {C}. and {B}uitenhuis, {E}. {T}. and {M}oriarty, {R}. and {A}lvain, {S}. and {A}umont, {O}livier and {B}opp, {L}. and {C}hollet, {S}. and {E}nright, {C}. and {F}ranklin, {D}. {J}. and {G}eider, {R}. {J}. and {H}arrison, {S}. {P}. and {H}irst, {A}. {G}. and {L}arsen, {S}. and {L}egendre, {L}. and {P}latt, {T}. and {P}rentice, {I}. {C}. and {R}ivkin, {R}. {B}. and {S}ailley, {S}. and {S}athyendranath, {S}. and {S}tephens, {N}. and {V}ogt, {M}. and {V}allina, {S}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{G}lobal ocean biogeochemistry models currently employed in climate change projections use highly simplified representations of pelagic food webs. {T}hese food webs do not necessarily include critical pathways by which ecosystems interact with ocean biogeochemistry and climate. {H}ere we present a global biogeochemical model which incorporates ecosystem dynamics based on the representation of ten plankton functional types ({PFT}s): six types of phytoplankton, three types of zooplankton, and heterotrophic procaryotes. {W}e improved the representation of zooplankton dynamics in our model through (a) the explicit inclusion of large, slow-growing macrozooplankton (e.g. krill), and (b) the introduction of trophic cascades among the three zooplankton types. {W}e use the model to quantitatively assess the relative roles of iron vs. grazing in determining phytoplankton biomass in the {S}outhern {O}cean high-nutrient low-chlorophyll ({HNLC}) region during summer. {W}hen model simulations do not include macrozooplankton grazing explicitly, they systematically overestimate {S}outhern {O}cean chlorophyll biomass during the summer, even when there is no iron deposition from dust. {W}hen model simulations include a slow-growing macrozooplankton and trophic cascades among three zooplankton types, the high-chlorophyll summer bias in the {S}outhern {O}cean {HNLC} region largely disappears. {O}ur model results suggest that the observed low phytoplankton biomass in the {S}outhern {O}cean during summer is primarily explained by the dynamics of the {S}outhern {O}cean zooplankton community, despite iron limitation of phytoplankton community growth rates. {T}his result has implications for the representation of global biogeochemical cycles in models as zooplankton faecal pellets sink rapidly and partly control the carbon export to the intermediate and deep ocean.},
  keywords = {{ARCTIQUE}},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {13},
  numero = {14},
  pages = {4111--4133},
  ISSN = {1726-4170},
  year = {2016},
  DOI = {10.5194/bg-13-4111-2016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067777},
}