A framework for mapping local knowledge on ciguatera and artisanal fisheries to inform systematic conservation planning

Type Article
Date 2021-08
Language English
Author(s) André LaureORCID1, 2, Van Wynsberge Simon3, Chinain Mireille4, Gatti Clémence Mahana Iti4, Dempsey Alexandra5, Andréfouët Serge1
Affiliation(s) 1 : IRD, Institut de Recherche pour le Développement—France, UMR 9220 Entropie (Institut de Recherche pour le Développement—France, Université de la Réunion, Université de la Nouvelle-Calédonie, Ifremer, Centre National de la Recherche Scientifique), BP A5, 98848 Nouméa cedex, New Caledonia
2 : SU Sorbonne Université, 21, Rue de L'école de Médecine, Paris 75006, France
3 : Ifremer, Institut Français de Recherche pour l’Exploitation de la Mer, UMR 9220 Entropie (Institut de Recherche pour le Développement—France, Université de la Réunion, Université de la Nouvelle-Calédonie, Ifremer, Centre National de la Recherche Scientifique), BP A5, 98848 Nouméa Cedex, New Caledonia
4 : ILM ,Institut Louis Malardé, Laboratoire des Biotoxines Marines, UMR 241 EIO (Ifremer, Institut Louis Malardé, Institut de Recherche pour le Développement, Université de la Polynésie Française), BP 30, 98713 Papeete, Tahiti, French Polynesia
5 : KSLOF ,Khaled bin Sultan Living Oceans Foundation, 821 Chesapeake Avenue #3568, Annapolis, MD 21403, USA
Source Ices Journal Of Marine Science (1054-3139) (Oxford University Press (OUP)), 2021-08 , Vol. 78 , N. 4 , P. 1357-1371
DOI 10.1093/icesjms/fsab016
WOS© Times Cited 4
Keyword(s) French Polynesia, marine biotoxins, marine-protected area, Marxan, Raivavae Island, small-scale fisheries
Abstract

Millions of people’s livelihoods rely on artisanal fisheries. However, in many regions fishers are increasingly facing ciguatera poisoning, a seafood-borne illness. The toxin, produced by benthic dinoflagellates, can spread through marine food webs and to humans by direct consumption. Ciguatera risk can play a major role in fisher’s activities but has never been considered in any marine spatial plans thus far. To fill this gap, we examined if integrating ciguatera in systematic conservation plans could affect these decisions. We developed through map-based interviews, a novel seven-step framework to collect and map local knowledge on ciguatera risk and fisheries activities with two innovations: (i) better mapping of fishing grounds by combining geomorphological habitat and fishing gear information, and (ii) integrating ciguatera risk directly into systematic spatial planning designs and scenarios conceived to maximize benthic habitat conservation while minimizing impacts to fishers. The approach is illustrated for Raivavae Island, in French Polynesia, Pacific Ocean. We found that integrating ciguatera significantly improved prioritization solutions with a 24–38% decrease of costs to fishers compared with scenarios based solely on fishery data. This framework was designed for scientists and managers to optimize the implementation of conservation plans and could be generalized to ciguatera-prone areas.

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André Laure, Van Wynsberge Simon, Chinain Mireille, Gatti Clémence Mahana Iti, Dempsey Alexandra, Andréfouët Serge (2021). A framework for mapping local knowledge on ciguatera and artisanal fisheries to inform systematic conservation planning. Ices Journal Of Marine Science, 78(4), 1357-1371. Publisher's official version : https://doi.org/10.1093/icesjms/fsab016 , Open Access version : https://archimer.ifremer.fr/doc/00684/79591/