@article{fdi:010087471,
  title = {{I}ncluding filter-feeding gelatinous macrozooplankton in a global marine biogeochemical model : model-data comparison and impact on the ocean carbon cycle},
  author = {{C}lerc, {C}. and {B}opp, {L}. and {B}enedetti, {F}. and {V}ogt, {M}. and {A}umont, {O}livier},
  editor = {},
  language = {{ENG}},
  abstract = {{F}ilter-feeding gelatinous macrozooplankton ({FFGM}), namely salps, pyrosomes and doliolids, are increasingly recognized as an essential component of the marine ecosystem. {U}nlike crustacean zooplankton (e.g., copepods) that feed on prey that are an order of magnitude smaller, filter feeding allows {FFGM} to have access to a wider range of organisms, with predator-over-prey size ratios as high as 10(5):1. {I}n addition, most {FFGM} produce carcasses and/or fecal pellets that sink 10 times faster than those of copepods. {T}his implies a rapid and efficient export of organic matter to depth. {E}ven if these organisms represent < 5 % of the overall planktonic biomass, their associated organic matter flux could be substantial. {H}ere we present a first estimate of the influence of {FFGM} on the export of particulate organic matter to the deep ocean based on the marine biogeochemical model {NEMO}-{PISCES} ({N}ucleus for {E}uropean {M}odelling of the {O}cean, {P}elagic {I}nteraction {S}cheme for {C}arbon and {E}cosystem {S}tudies). {I}n this new version of {PISCES}, two processes characterize {FFGM}: the preference for small organisms due to filter feeding and the rapid sinking of carcasses and fecal pellets. {T}o evaluate our simulated {FFGM} distribution, we compiled {FFGM} abundance observations into a monthly biomass climatology using a taxon-specific biomass-abundance conversion. {M}odel-observation comparison supports the model's ability to quantify the global and large-scale patterns of {FFGM} biomass distribution but reveals an urgent need to better understand the factors triggering the boom-and-bust {FFGM} dynamics before we can reproduce the observed spatio-temporal variability of {FFGM}. {FFGM} substantially contribute to carbon export at depth (0.4 {P}g {C} yr(-1) at 1000 m), particularly in low-productivity regions (up to 40 % of organic carbon export at 1000 m), where they dominate macrozooplankton biomass by a factor of 2. {T}he {FFGM}-induced export increases in importance with depth, with a simulated transfer efficiency close to 1.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {20},
  numero = {4},
  pages = {869--895},
  ISSN = {1726-4170},
  year = {2023},
  DOI = {10.5194/bg-20-869-2023},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087471},
}