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| Lorance, Pascal. |
| Une évaluation de la variabilité du phénomène ciguatérique est réalisée et montre qu'aucune cartographie précise des zones ciguatériques n'est possible à cette échelle. Le rejet systématique des espèces à «risques» reste la méthode la plus sûre pour éviter des intoxications, mais il ne peut être exclus que quelques poissons appartenant à des espèces présumécs saines s'avèrent toxiques. Les rendements obtenus au cours de ces trois séries de campagnes de pêche sont présentés dans ce document ainsi que les résultats des tests comparatifs des secteurs et des saisons (sèche et humide). Une description des captures (composition spécifique, distribution des fréquences de taille des principales espèces) donne des indices qualitatifs d'une exploitation modérée sur... |
| Tipo: Text |
Palavras-chave: Pêcherie démersale; Captures; Rendements; Antilles; Saint-Martin; Saint-Barthélémy; Ciguatera. |
| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/00419/53029/53963.pdf |
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| Tchekemian, Anthony. |
| This social science study focuses on the risk from ciguatera that is affecting the Polynesians' health. Compared to the global population exposure to ciguatera health risks, the situation of French Polynesia is particularly worrisome, in view of the number of people poisoned each year. Exposure to this risk depends directly on the marine ecosystem, but also on lifestyles and individual responsibilities. This study focuses on the Tahitians' representations of the ciguatera risk, that is, their knowledge, awareness, and acceptance of the health risk resulting from the consumption of fish likely to be infected. It provides a better understanding of the cultural, social, and economic factors that explain and justify the consumption of potentially at-risk fish. |
| Tipo: Text |
Palavras-chave: Ciguatera; Representations; Natural resources; Risk; Health; Tahiti. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00660/77229/78663.pdf |
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| Longo, Sébastien; Sibat, Manoella; Taiana Darius, Hélène; Hess, Philipp; Chinain, Mireille. |
| Ciguatera poisoning is a foodborne disease caused by the consumption of seafood contaminated with ciguatoxins (CTXs) produced by dinoflagellates in the genera Gambierdiscus and Fukuyoa. Ciguatera outbreaks are expected to increase worldwide with global change, in particular as a function of its main drivers, including changes in sea surface temperature, acidification, and coastal eutrophication. In French Polynesia, G. polynesiensis is regarded as the dominant source of CTXs entering the food web. The effects of pH (8.4, 8.2, and 7.9), Nitrogen:Phosphorus ratios (24N:1P vs. 48N:1P), and nitrogen source (nitrates vs. urea) on growth rate, biomass, CTX levels, and profiles were examined in four clones of G. polynesiensis at different culture age (D10, D21,... |
| Tipo: Text |
Palavras-chave: Gambierdiscus polynesiensis; French Polynesia; Ciguatera; Ciguatoxins; LC-MS; MS; Toxin profile; Nitrate; Urea; Culture medium acidification. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00662/77382/78981.pdf |
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| Longo, Sebastien; Sibat, Manoella; Viallon, Jérôme; Darius, Hélène Taiana; Hess, Philipp; Chinain, Mireille. |
| Ciguatera poisoning (CP) is a foodborne disease caused by the consumption of seafood contaminated with ciguatoxins (CTXs) produced by dinoflagellates in the genera Gambierdiscus and Fukuyoa. The toxin production and toxin profiles were explored in four clones of G. polynesiensis originating from different islands in French Polynesia with contrasted CP risk: RIK7 (Mangareva, Gambier), NHA4 (Nuku Hiva, Marquesas), RAI-1 (Raivavae, Australes), and RG92 (Rangiroa, Tuamotu). Productions of CTXs, maitotoxins (MTXs), and gambierone group analogs were examined at exponential and stationary growth phases using the neuroblastoma cell-based assay and liquid chromatography–tandem mass spectrometry. While none of the strains was found to produce known MTX compounds,... |
| Tipo: Text |
Palavras-chave: Gambierdiscus polynesiensis; Ciguatera; Ciguatoxins; Gambierone; 44-methylgambierone; LC-MS/MS; CBA-N2a; Toxin profiles. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00599/71134/69449.pdf |
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| Bagnis, R.; Inoue, A.; Rongeras, S.; Galonnier, M.; Bennett, J.; Chanteau, S.; Pastural, J.. |
| We have carried out on a fringing reef of Tahiti, catching periodically ciguateric fishes, a comparative dynamic survey of the population density of GAMBERDISCUS TOXICUS and some linked environmental factors, during a four year period. Half of the marine parameters, i.e. temperature, salinity, dissolved NO2, NO3, PO34, SiO2, have been systematically studied according to a weekly or a monthly rhythm ; the other parameters, i.e. pH, dissolved NH3, 02, C and B12 vitamin have been studied episodically. The local pluviometry for the two weeks preceeding the samplings has also been measured. The statistical analysis of the data did not allow us to observe any significant simple correlation between the physical or chemical parameters and the density of G,... |
| Tipo: Text |
Palavras-chave: Toxines naturelles; Ciguatera; Peridiniens; Récifs coralliens. |
| Ano: 1982 |
URL: https://archimer.ifremer.fr/doc/00306/41755/40966.pdf |
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| Razafimahefa, N.; Champetier de Ribes, G.; Ranoivoson, G.; Rasolofonirina, R.N.; Rakotoson, J.D.; Rabeson, D.. |
| If seafood poisonings are well documented in the Pacific region, they are not often reported in the Indian Ocean. In Madagascar, fishermen and people living in coastal areas are traditionally aware of seafood poi - sonings . Mass intoxications were described in the sixties, including lethal cases following sardine ingestion. From 1989 to 1993, 28 ichtyosarcotoxism cases, mainly ciguatera occurring in children, were reported in Tulear hospital . From July 1993 to May 1996, nine seafood poisoning outbreaks occurred in coastal villages after turtle, shark and sardine meals. Clinical symptoms were related to marine toxins. For turtle intoxications, gastro-intestinal symptoms are the most frequently seen (acute stomatitis, dysphagia, vomiting and diarrhea) ,... |
| Tipo: Journal Contribution |
Palavras-chave: Sardine; Biotoxins; Chelonitoxism; Ciguatera; Ichtysarcotoxism; Clupeotoxin; Seafood; Poisoning. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/782 |
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