@article{fdi:010090202,
  title = {{B}asin-scale variability in phytoplankton size-abundance spectra across the {A}tlantic {O}cean},
  author = {{G}onzalez-{G}arcia, {C}. and {A}gusti, {S}. and {A}iken, {J}. and {B}ertrand, {A}rnaud and {F}arias, {G}. {B}. and {B}ode, {A}. and {C}arr{\'e}, {C}laire and {G}oncalves, and {H}arbour, {D}. {S}. and {H}uete-{O}rtega, {M}. and {M}elo, {P}amc and {M}oreno-{O}stos, {E}. and {R}ees, {A}. {P}. and {R}odriguez, {J}. and da {S}ilva, {S}. and {Z}ubkov, {M}. and {M}aranon, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}hytoplankton size structure, a major determinant of trophic structure and biogeochemical functioning in pelagic ecosystems, can be described by the slope of the size-abundance spectrum ({SAS}). {P}revious observational studies reporting spatio-temporal changes in phytoplankton {SAS} slope have focused on particular open-ocean or coastal environments. {T}herefore, the overall variability in phytoplankton {SAS} slope still has not been investigated over wide ranges of biomass and productivity including both oligotrophic open-ocean regions and productive coastal waters. {H}ere we present a multi-cruise overview of the basin-scale variability in phytoplankton biomass and {SAS} slope across the {A}tlantic {O}cean, covering coastal, shelf, and oceanic environments over the 50 degrees {N}-50 degrees {S} latitude range. {W}e find the inverse relationship between cell size and abundance to be pervasive across the studied regions, even in highly productive coastal waters. {I}n oceanic regions, consistent latitudinal patterns are observed in the relationship between nutricline depth, phytoplankton biomass and {SAS} slope. {T}here is a strong degree of covariation between {SAS} slope at the surface and at the base of the euphotic layer, indicating that geographical changes in phytoplankton size structure override vertical variability. {A} basin-scale relationship exists between increasing resource supply, enhanced phytoplankton biomass, and progressively less steep {SAS} slopes, reflecting increasing importance of large cells in more productive waters. {H}owever, the relationship between ecosystem productivity and both {SAS} slope and mean community cell size is saturating, which means there is no continuous trend towards ever increasing contribution by larger cells. {S}imilar phytoplankton size structures, with a biomass dominance by the 2-20 & mu;m size class, are found in both moderately and highly eutrophic waters. {O}ur results provide an observational benchmark for testing the predictions of size-based plankton models and for assessing future, climate-related shifts in phytoplankton size structure in both coastal and oceanic regions of the {A}tlantic {O}cean.},
  keywords = {{ATLANTIQUE}},
  booktitle = {},
  journal = {{P}rogress in {O}ceanography},
  volume = {217},
  numero = {},
  pages = {103104 [12 ]},
  ISSN = {0079-6611},
  year = {2023},
  DOI = {10.1016/j.pocean.2023.103104},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090202},
}