@inproceedings{fdi:010089774,
  title = {{A}pplying acoustic scattering layer descriptors to depict mid-trophic pelagic organisation : the case of {A}tlantic {A}frican large marine ecosystems continental shelf [r{\'e}sum{\'e} de poster]},
  author = {{M}ouget, {A}. and {B}rehmer, {P}atrice and {P}errot, {Y}annick and {U}anivi, {U}. and {D}iogoul, {N}. and {E}l {A}youbi, {S}. and {J}eyid, {M}.{A}. and {S}arr{\'e}, {A}. and {B}{\'e}hagle, {N}. and {K}ouassi, {A}.{M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}ydroacoustic is a reliable and often used tool to monitor and study marine ecosystems. {T}his study focus on acoustic scattered layers, which are the echosounder detection of pelagic marine organism of low trophic level, important in ecosystems functioning. {D}ata have been recorded at 38 k{H}z in the three {A}tlantic {A}frican {L}arge {M}arine {E}cosystems ({AA} {LME}). {T}o describe parsi-moniously ecosystems, compare them and understand the difference, 14 descriptors have been used. {S}ome of them are based on already used descriptors and others are new. {T}he aim of this study is to ensure that these descriptors are relevant to monitor and compare systems. {S}o, we first explore spatial (intra- and inter-{LME} comparisons) and then temporal dimension (interannual variability). {F}or such purpose, we use a large acoustic database collected over 15 years in the three {AA} {LME}: {C}anary {C}urrent {LME}, {G}uinea {C}urrent {LME} and {B}enguela {C}urrent {LME}. {O}ur methodology is innovative, introducing original new descriptors to monitor pelagic com-partment of each {LME} and should be efficiently used for environmental monitoring in case of perturbation as overfishing, climate change or marine pollution. {I}ndeed the acoustic scattered layer are mainly composed of macrozooplankton and ichtyoplankton which are sensitive to en-vironmental change.},
  keywords = {{AFRIQUE} ; {ATLANTIQUE} ; {CANARIES} {COURANT} ; {GUINEE} {COURANT} ; {BENGUELA} {COURANT}},
  volume = {4},
  numero = {54},
  pages = {51--52},
  booktitle = {{W}orking group of fisheries acoustics, science and technology ({WGFAST})},
  year = {2022},
  ISSN = {2618-1371},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089774},
}