@incollection{fdi:010018532,
  title = {{A}cadja-enclos used in {C}{\^o}te d'{I}voire as an extensive aquaculture system},
  author = {{H}em, {S}aurin and {A}vit, {J}.{L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}cadja is a fishing method widely practiced in the coastal lagoons of {B}enin. {T}he principle of this traditional fishery is to set dense masses of branches in shallow water, which attract wild fish in large numbers. {T}he yearly production is very high : 7 to 20 t/ha. {E}xploited within a short time (two to three months), the acadja system could be considered simply as a fish trap or aggregating device. {I}f harvested after a longer period (six to 12 months), it may be considered as a culture system (retention, breeding, propagation, natural feeding and growth). {T}his contribution explores the latter. {T}wo production systems were used : an acadja-enclos (enclosure with acadja) and an enclosure without acadja used a a control. {A}fter 12 months, a biomass equivalent to 8 t/ha was harvested from the acadja, eight times higher than the control system. {A}mong the 18 species of fish harvested, #{S}arotherodon melanotheron$ represented 79% of the biomass. {A}nalysis of the fish population showed that the young fry had entered through the net at the beginning of the experiment and grown in the acadja-enclos. {T}here were no differences in condition factor between the #{S}. melanotheron$ from the acadja-enclos and from open water. {F}urther experiments have shown that acadja-enclos, which can be considered as "bamboo reefs", are very suitable for fish production in rural {C}{\^o}te d'{I}voire. {T}he acadja-enclos system appears to increase productivity greatly in lagoon fish culture. {T}he same principle could be applied in extensive aquaculture or in various aquatic management programs. {F}urther research is needed to understand the basis of this high productivity. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{AQUACULTURE} ; {PISCICULTURE} ; {ELEVAGE} {EXTENSIF} ; {SYSTEME} {D}'{ELEVAGE} ; {PRODUCTIVITE} ; {LAGON} ; {COTE} {D}'{IVOIRE}},
  booktitle = {{T}he third international symposium on tilapia in aquaculture},
  numero = {41;1325},
  pages = {46--53},
  address = {{P}aris ({FRA}) ; {M}akati {C}ity},
  publisher = {{ORSTOM} ; {ICLARM}},
  series = {{ICLARM} {C}onference {P}roceedings ({PHL}): {ICLARM} {C}ontribution},
  year = {1996},
  ISBN = {971-8709-42-8},
  ISSN = {0115-4435},
  URL = {https://www.documentation.ird.fr/hor/fdi:010018532},
}