Bagnis,-R.; Bennett,-J.; Barsinas,-M.; Drollet,-J.H.; Jacquet,-G.; Legrand,-A.M.; Cruchet,-P.H.; Pascal,-H. Correlation between ciguateric fish and damage to reefs in the Gambier Islands (French Polynesia). PROCEEDINGS- OF-THE-SIXTH-INTERNATIONAL-CORAL-REEF-SYMPOSIUM,- TOWNSVILLE,-AUSTRALIA,-8th-12th-AUGUST-1988.-VOLUME-2:- CONTRIBUTED-PAPERS-MINI-SYMPOSIUM-1-TO-10-14. Choat,- J.H.;et-al.-eds.. 1988. pp. 195-200. An investigation of the most severe outbreak of ciguatera ever reported was carried out during a 20 year study in Gambier Islands through the study of the species, trophic level and area of capture of poisonous fish, and the percentage of toxic individuals per batch of various control fish (PCI). The most frequently toxic fish from 1967 to 1975 were the herbivores (mainly parrot fish, surgeon fish, and mullets). From 1976 to 1982, herbivorous and carnivorous fish shared the morbidity equally. From 1983, toxic carnivores (snappers, emperor, groupers, jacks mainly) were more often involved than herbivores. Within the same period, the average PCI increased from 4.5 for herbivores and 2 for carnivores in 1969 to 67 (1975-1978) and 80 (1978-1979) respectively. From 1980, the PCI decreased regularly, to below 20 for most of the fish in 1987. The distribution of toxic species varied strongly in space and time. A relationship between both man- made and natural coral reef disturbances and the development of the flare up was pointed out.