@article{fdi:010063352,
  title = {{C}hanges in partitioning of carbon amongst photosynthetic pico-and nano-plankton groups in the {S}argasso {S}ea in response to changes in the {N}orth {A}tlantic {O}scillation},
  author = {{C}asey, {J}.{R}. and {A}ucan, {J}{\'e}r{\^o}me and {G}oldberg, {S}.{R}. and {L}omas, {M}.{W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}icophytoplankton carbon biomass at the {B}ermuda {A}tlantic {T}ime-series {S}tudy ({BATS}) site from {J}une 2004 to {D}ecember 2010 was estimated from the direct calibration of cellular carbon content and forward light scatter (via flow cytometry). {S}easonality and interannual dynamics of {P}rochlorococcus, {S}ynechococcus and small eukaryotic algae (<12 mu m diameter) abundance, cellular carbon content ({Q}({C}); particulate organic carbon; {POC} cell(-1)), and group-specific carbon biomass are reported. {Q}({C}) of individual taxa varied with depth and season by as much as an order of magnitude, roughly comparable to variability in abundance. {D}uring the time-series there were obvious shifts in the taxonomic distribution of photosynthetic carbon biomass; these interannual shifts in biomass were due to simultaneous changes in both {Q}({C}) and cell abundance. {T}he observed pattern was not apparent from numerical abundance alone, highlighting the importance of {Q}({C}) measurements in place of using fixed conversion factors to better understand biological carbon dynamics. {C}hanges in the phase of the {N}orth {A}tlantic {O}scillation ({NAO}) from positive to negative modes correlated with shifts in biomass between picocyanobacteria and small eukaryotic algae, respectively. {T}hus, shifts in algal community structure are inferred to be associated with changes in light intensity and implied nutrient supply via mixing (i.e., patterns in upper ocean stability). {T}hese observed changes in phytoplankton biomass partitioning were correlated with the important ocean carbon cycle parameters of export flux, mesopelagic transfer efficiency, and elemental stoichiometry. {I}mportantly, interannual relationships between these parameters and algal biomass were detected only when {Q}({C}) was considered as variable.},
  keywords = {{PHYTOPLANCTON} ; {BIOMASSE} ; {CARBONE} ; {ATLANTIQUE} ; {SARGASSES} {MER}},
  booktitle = {{M}easuring ocean change : results from {BATS}, {HOT}, and {CARIACO}},
  journal = {{D}eep-{S}ea {R}esearch.{P}art 2 : {T}opical {S}tudies in {O}ceanography},
  volume = {93},
  numero = {no sp{\'e}cial},
  pages = {58--70},
  ISSN = {0967-0645},
  year = {2013},
  DOI = {10.1016/j.dsr2.2013.02.002},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063352},
}