@article{fdi:010035598,
  title = {{R}epetitive fishing, local depletion, and fishing efficiencies in the {K}erguelen {I}slands fisheries},
  author = {{B}ez, {N}icolas and {D}e {O}liveira, {E}. and {D}uhamel, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}ommercial catch per unit effort (cpue) recorded by observers on board trawlers operating in the {F}rench {EEZ} around the {K}erguelen {I}slands (south {I}ndian {O}cean) are used to analyse the impact of repetitive fishing on cpues and to estimate local fishing efficiencies. {S}eries of cpues from the same fishing locations and no more than two days apart are first built, and then the mean depletion effect of repetitive fishing (between 4% and 10% for {P}atagonian toothfish and around 20% for icefish and marbled notothen) is quantified. {R}andom fluctuations of cpues around an exponential decrease (i.e. the reference model when fishing efficiencies are constant) lead to modelling fishing efficiency as a random variable. {B}ased on the observations of the ratio between two consecutive catches, a method is developed to estimate the probability density function of fishing efficiencies. {T}he significant decrease of average fishing efficiency between the start of the fishery and its full exploitation phase is explained by a change in regulations (from global to individual quotas). (c) 2005 {I}nternational {C}ouncil for the {E}xploration of the {S}ea. {P}ublished by {E}lsevier {L}td. {A}ll rights reserved.},
  keywords = {biomass depletion ; catchability ; commercial cpue ; random local fishing efficiency ; replicates},
  booktitle = {},
  journal = {{I}ces {J}ournal of {M}arine {S}cience},
  volume = {63},
  numero = {3},
  pages = {532--542},
  ISSN = {1054-3139},
  year = {2006},
  DOI = {10.1016/j.icesjms.2005.10.005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010035598},
}