Is stock enhancement the best option to manage fisheries? A case study from Taiarapu (French Polynesia)
Résumé
Stock enhancements are commonly advocated as a solution to declining fish populations. They consist of re-
leasing hatchery individuals in the wild, to increase stock abundance and provide socio-economic benefits. Some
argue that stock enhancement science focusses too narrowly on technical and economic aspects, with insufficient
investigations of the social impacts (positive and negative) on local communities. The present study investigated
the potential impacts the planned Marava (Siganus argenteus) stock enhancement could have on local fishers from
Taiarapu (French Polynesia). Ninety-six local fishers were interviewed, using semi-structured questionnaires, to
gather information on the data-poor coastal fishery, the importance of Marava as a target species, and the fishers’
perceptions of stock enhancement and of the fisheries management regime. Fishers reported overall finfish
abundance to have declined and attributed this mainly to overfishing caused by the growing number of fishers,
undersized fish being caught, and pollution. Results suggested that wild Marava was insignificant within this
coastal fishery, as it was rarely caught. Although 90.6% of the interviewees approved of enhancing Marava
stocks, this intervention was thought unlikely to enhance fishers’ livelihoods through mitigating overharvesting
(particularly due to certain fishing practices including night spearfishing and harvesting juveniles). Our results
also showed that coastal fishers were more concerned with inequalities between different stakeholders of the
fishery, especially offshore fishers, under the current management regime than the state of the fishery and
suggest that the local fisheries agency should attempt to address these existing inequalities before engaging in
stock enhancement.