@article{fdi:010090028,
  title = {{T}owards "glocalised" management of tuna stocks based on causation between a stock and its component belonging temporally to local {E}xclusive {E}conomic {Z}ones},
  author = {{A}kia, {S}osthene and {A}mande, {M}. {J}. and {G}aertner, {D}aniel},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he creation of {E}xclusive {E}conomic {Z}ones ({EEZ}s) in 1982 gave coastal countries sovereignty over their local tuna resources, whereas the migratory nature of tuna calls for regional management. {H}owever, as regional tuna management by {R}egional {F}isheries {M}anagement {O}rganisations ({RFMO}s) does not always facilitate optimal management of local resources by coastal countries, there is a need for an approach that ensures both the achievement of regional management objectives and optimisation of local benefits, i.e., "glocalised" management. {T}o promote "glocal" management measures for the local populations of highly migratory species, (1) the spatio-temporal {VAST} model was used to estimate abundance indices for the adult regional {E}astern {A}tlantic yellowfin tuna population and its local component in {I}vorian waters using catch and effort data and (2) convergent cross mapping was used to examine the causal relationship between changes in abundance at these different spatial scales over time. {C}onvergent cross-mapping detected a causal relationship between general stock dynamics and local dynamics, in the direction from global stock abundances to local resource abundances. {T}his implies that the success of local fishing was closely linked to the general state of the stock. {C}onversely, we found no evidence of a causal relationship in the direction from local resources to the regional stock. {T}his suggests that local adult dynamics had little or no influence on overall stock dynamics. {B}ased on these results, we propose several criteria to ensure fairer distribution of tuna resources between coastal states and distant water fleets ({DWF}s).},
  keywords = {{G}localisation ; local fisheries ; causal relationship ; convergent cross ; mapping ; abundance index ; yellowfin tuna ; {ATLANTIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{A}quatic {L}iving {R}esources},
  volume = {36},
  numero = {},
  pages = {23 [13 p.]},
  ISSN = {0990-7440},
  year = {2023},
  DOI = {10.1051/alr/2023018},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090028},
}