@article{fdi:010070593,
  title = {{A} new glider-compatible optical sensor for dissolved organic matter measurements : test case in the {NW} {M}editerranean {S}ea},
  author = {{C}yr, {F}. and {T}edetti, {M}arc and {B}esson, {F}. and {B}eguery, {L}. and {D}oglioli, {A}.{M}. and {P}etrenko, {A}.{A}. and {G}outx, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}ini{F}luo-{UV} is a new glider-compatible optical sensor for measurements of dissolved organic matter ({DOM}) in natural waters. {T}he working principle, sensor design and challenges faced during the validation phase are reported. {T}he first in situ application of the sensor during three glider deployments in the {NW} {M}editerranean sea (spring, summer, and fall) are also presented. {F}or these campaigns, the two channels of the sensor were adjusted to target {T}ryptophan-like (excitation/emission wavelengths λ{E}x/λ{E}m: 275/340 nm) and {P}henanthrene-like (λ{E}x/λ{E}m: 255/360 nm) fluorescence. {T}hese were chosen because they represent fluorophores of interest commonly found in seawater. {W}hile {T}ryptophan (an amino-acid believed to be a by-product of biological activity) is naturally found in the ocean, {P}henanthrene (a polycyclic aromatic hydrocarbon) is mainly introduced in the environment by human activities. {T}he addition of these variables to more common physical and biogeochemical glider measurements reveals new features of {DOM} dynamics in the {M}editerranean {S}ea. {F}or example, the temporal and spatial decoupling between {T}ryptophan-like and {C}hl-a fluorescence suggests that the former is not only a marker of phytoplankton activity, but could also give more subtle information on the microbial processes occurring. {T}he identification of a {P}henanthrene-like layer just below the pycnocline at all seasons also raises questions on the mechanisms driving its presence in the {M}editerranean. {K}nowing that the role of ocean {DOM} on atmospheric carbon sequestration is becoming clearer, the high spatio-temporal resolution possible with this new sampling strategy may represents a key step toward our deep understanding of {DOM} dynamics and its role on the biological pump.},
  keywords = {{MEDITERRANEE}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {4},
  numero = {},
  pages = {89 [19 ]},
  ISSN = {2296-7745},
  year = {2017},
  DOI = {10.3389/fmars.2017.00089},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070593},
}