@article{fdi:010065346,
  title = {{H}ydroacoustics as a relevant tool to monitor fish dynamics in large estuaries},
  author = {{S}amedy, {V}. and {W}ach, {M}arie and {L}obry, {J}. and {S}elleslagh, {J}. and {P}ierre, {M}. and {J}osse, {E}rwan and {B}oet, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}s areas where salt and fresh water meet, estuarine ecosystems are complex and highly dynamic natural environments. {B}ecause of this, assessing fish densities in such areas is challenging. {H}ydroacoustics is rarely used to analyze fish populations in large estuaries, even though such approaches have in the past proven effective in providing information on fish distribution, abundance and size-structure in other aquatic systems. {I}n this study, we compare densities detected acoustically with those obtained using traditional fish sampling methods in the {G}ironde estuary ({F}rance), where regular monitoring surveys using fishing gear have been carried out since 1979 to track ecological changes. {W}ith the aim of complementing traditional fish sampling, our study used vertical beam mobile acoustic surveys at 70 and 120 k{H}z between {M}ay 2010 and {J}une 2012. {T}here was a highly significant correlation between fish densities obtained with traditional fish sampling and those obtained using hydroacoustics. {B}oth inter-annual variations and the timing of peak densities were similar for the two methods. {T}his shows that the less labor-intensive acoustic method can be used to monitor estuarine fish populations. {H}owever, there is a need to develop internationally-accepted standards for collection and analysis of these data in order to ensure comparability of results across systems.},
  keywords = {{E}stuarine ecosystem ; {V}ertical acoustic ; {M}ulti-frequency ; {F}ish dynamic ; {G}ironde estuary ; {FRANCE} ; {GIRONDE} {ESTUAIRE}},
  booktitle = {},
  journal = {{F}isheries {R}esearch},
  volume = {172},
  numero = {},
  pages = {225--233},
  ISSN = {0165-7836},
  year = {2015},
  DOI = {10.1016/j.fishres.2015.07.025},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065346},
}