@article{fdi:010085116,
  title = {{I}nsights from a multibeam echosounder to survey pelagic fish shoals and their spatio-temporal distribution in ultra-shallow waters},
  author = {{D}avid, {V}. and {M}ouget, {A}nne and {P}errot, {Y}annick and {L}e {G}off, {L}. and {T}hiriet, {P}. and {D}iogoul, {N}. and {F}eunteun, {E}. and {A}cou, {A}. and {B}rehmer, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{S}urveying pelagic fish population dynamics in ultra-shallow waters (<20m) is often limited by research vessel size, which not usually navigate in shallow waters. {H}ere, we use a multibeam echosounder to detect fish shoals and assess their characteristics (acoustic density and 3-{D} morphology) in ultra-shallow waters to follow {E}uropean {M}arine {S}trategy {F}ramework {D}irective ({MSFD}) request. {S}urveys were made in two coastal areas in {F}rench {B}rittany during different seasons (spring, summer, autumn) in 2020. {O}ur surveying methodology applying portable multibeam echosounder on small vessels allowed us to successfully survey pelagic fish spatio-temporal distributions in ultra-shallow waters. {N}umerous shoals have been observed which could account for important biomass and they were significantly denser and larger in ultra-shallow waters compared to shoals in deeper areas for both study sites. {S}hoal surfaces and volumes were also significantly lower in autumn compared to spring and summer. {I}n addition, {A}tlantic mackerels ({S}comber scombrus) were observed in ultra-shallow waters areas during summer in both study sites. {C}onsequently, the multibeam echosounder is a workable and relevant tool for setting up long-term surveying of pelagic fish in ultra-shallow waters (coastal and estuarine ecosystems) as required by the {MSFD} to better assess pelagic fish ecological status.},
  keywords = {{P}elagic fish ; {M}ultibeam ; {E}chosounder ; {U}ltra-shallow waters ; {C}oastal ecosystems ; {FRANCE} ; {ATLANTIQUE} ; {BRETAGNE} ; {GASCOGNE} {GOLFE} ; {CELTIQUE} {MER}},
  booktitle = {},
  journal = {{E}stuarine {C}oastal and {S}helf {S}cience},
  volume = {264},
  numero = {},
  pages = {107705 [11 ]},
  ISSN = {0272-7714},
  year = {2022},
  DOI = {10.1016/j.ecss.2021.107705},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085116},
}