@article{fdi:010054276,
  title = {{E}ffects of time-area closure on tropical tuna purse-seine fleet dynamics through some fishery indicators},
  author = {{T}orres-{I}rineo, {E}dgar and {G}aertner, {D}aniel and {D}elgado de {M}olina, {A}. and {A}riz, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ime-area closures have become a frequently used tool to control fishing effort and protect feeding and spawning areas. {H}owever, because time-area closure strata are mainly based on biological and ecological considerations, and do not accounts for fishermen's behavior-at-sea, this type of regulation tool may not entirely achieve its objectives. {W}ith the aim of comparing the impact of two different time-area regulations: (1) a moratorium on {F}ish {A}ggregating {D}evices ({FAD}) sets (1997-2005) and (2) a no-take area for surface fleets (2005-2010) on the dynamics of the {E}uropean ({EU}) tuna purse seine fleet operating in the eastern tropical {A}tlantic, several fishery indicators were evaluated through a {B}efore-{A}fter, {C}ontrol-{I}mpact ({BACI}) approach. {T}he results showed that prior to any regulation, the fleet used to be concentrated within the {G}ulf of {G}uinea area. {D}uring the first years of the moratorium on {FAD} (from {N}ovember to {J}anuary within a large region in the eastern {A}tlantic) there was a movement towards outside the protected area, increasing the total sets on {FAD} (restricted fishing activity). {I}n general, this moratorium fulfilled its objectives; however, it was not respected during the last years of this regulation. {T}he no-take time-area closure restricted all tuna catches for the surface fisheries but only in {N}ovember and within a small area (i.e., the {P}icolo zone). {A}s a result, there was an increase in activities on free schools outside the no-take area. {O}ur findings suggest the use of some simple fishery indicators to understand fleet dynamics as a complement of ecological information before implementing new time area closures. {F}urthermore, since tunas are highly mobile species, anticipating the possible re-allocation of effort of purse seiners to adjacent areas in response to the spatial regulation is required to design different candidate time-area closures and to evaluate their effectiveness to protect juvenile tunas.},
  keywords = {{PECHE} {THONIERE} ; {SENNEUR} ; {DISPOSITIF} {DE} {CONCENTRATION} {DES} {POISSONS} ; {CAPTURE} ; {VARIATION} {INTERANNUELLE} ; {INDICATEUR} {ECOLOGIQUE} ; {ANALYSE} {STATISTIQUE} ; {GESTION} {DES} {PECHES} ; {T}ime-area closure ; {F}leet dynamics ; {T}ropical tuna ; {F}ishery indicators ; {ATLANTIQUE} ; {GUINEE} {GOLFE}},
  booktitle = {},
  journal = {{A}quatic {L}iving {R}esources},
  volume = {24},
  numero = {4},
  pages = {337--350},
  ISSN = {0990-7440},
  year = {2011},
  DOI = {10.1051/alr/2011143},
  URL = {https://www.documentation.ird.fr/hor/fdi:010054276},
}