Assessment of the contamination of marine fauna by chlordecone in Guadeloupe and Martinique (Lesser Antilles)

Dromard, Charlotte R.; Bodiguel, Xavier; Lemoine, Soazig; Bouchon‐Navaro, Yolande; Reynal, Lionel; Thouard, Emmanuel; Bouchon, Claude

doi:10.1007/s11356-015-4732-z

Cited by 22 publications

(12 citation statements)

References 17 publications

(22 reference statements)

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“…In 2008, the European Commission of Food Safety set the maximal residue limit (MRL) to 20 μg.kg -1 wet weight for the consumption and commercialization of sea products. Research surveys indicated that the most contaminated marine areas are located downstream to banana plantations [ 16 ]. These areas are now totally closed to fishing activities and the boundary areas are classified as areas of fishing restrictions in which it is not possible to fish a list of targeted species.…”

Section: Introductionmentioning

confidence: 99%

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Different transfer pathways of an organochlorine pesticide across marine tropical food webs assessed with stable isotope analysis

et al. 2018

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Chlordecone is a persistent organochlorine pesticide used in the banana fields of the French West Indies from 1972 to 1993. Three marine habitats (mangroves, seagrass beds and coral reefs) of two study sites located downstream contaminated rivers were chosen to evaluate the level of contamination of marine food webs. On each habitat, the food chain collected included suspended organic matter, primary producers (macroalgae, algal turf, seagrass), zooplankton, symbiotic organisms (corals, sea anemones), primary consumers (herbivores, suspension feeders, biofilm feeders), omnivores and detritivores (lobsters, fish), secondary consumers (carnivores 1: invertebrate feeders, planktivores) and tertiary consumers (carnivores 2: invertebrate and fish feeders, piscivores). Log-linear regressions of the concentrations of chlordecone versus nitrogen isotopic ratios (δ15N) were used to assess the bioaccumulation of chlordecone along trophic food webs. At each site, bioconcentration and bioamplification take part on the transfer of chlordecone in marine organisms. In mangroves (i.e. close to the source of pollution), lower trophic magnification factors (TMF) indicated that bioconcentration prevailed over bioamplification phenomenon. The opposite phenomenon appeared on coral reefs in which bioconcentration processes were less important and bioamplification pathway became dominant. Far from the source of pollution, molecules of chlordecone seemed to be transfered to organisms mostly via trophic interactions rather than water contact.

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Section: Introductionmentioning

confidence: 99%

“…While spatial variations in the level of contamination of marine areas have been identified [ 15 , 16 ], no study has been conducted to understand the contamination dynamics, including the potential ways of transfer and bioaccumulation of the molecule in the food chain.…”

Section: Introductionmentioning

confidence: 99%

Different transfer pathways of an organochlorine pesticide across marine tropical food webs assessed with stable isotope analysis

et al. 2018

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“…Concentrations of chlordecone measured in lionfish were compared to the concentrations of five others fish species reported in the literature (Dromard et al, 2016) In the contaminated areas (i.e. in zones G01 and G02), all fish species showed a mean concentration of chlordecone higher than 20 µg.kg -1 , except for the surgeonfish Acanthurus bahianus.…”

Section: Comparisons With the Level Of Contamination Of Other Fish Spmentioning

confidence: 98%

The invasive lionfish, Pterois volitans, used as a sentinel species to assess the organochlorine pollution by chlordecone in Guadeloupe (Lesser Antilles)

Charlotte

Bouchon‐Navaro

Cordonnier

et al. 2016

Marine Pollution Bulletin

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“…Since 2003, several studies conducted in the Lesser Antilles have highlighted the presence of a contamination by chlordecone in soil (Cabidoche et al 2009), vegetables (Clostre et al 2015), aquatic and marine organisms (Coat et al 2006;Bertrand et al 2013;Coat et al 2011;Bouchon et al 2016;Dromard et al 2016;Monti et al 2016, Méndez-Fernandez et al 2018. However, few studies have been conducted on the fate of chlordecone between agricultural fields and marine ecosystems, especially when it arrives in estuarine environments.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, some studies demonstrated that chlordecone passes through the different levels of the food chain and shows accumulation phenomena, like many other organochlorine pollutants (Bahner et al 1977). In Guadeloupe and Martinique, the degree of contamination of marine organisms depends mostly on their location around the two islands (Dromard et al 2016). Fish and crustacean are generally more contaminated when they are located downstream the contaminated watersheds and when they are close to the coast (Dromard et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Environmental fate of chlordecone in coastal habitats: recent studies conducted in Guadeloupe and Martinique (Lesser Antilles)

Dromard

Bouchon‐Navaro

Allénou

et al. 2019

Environ Sci Pollut Res

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The organochlorine pollution by chlordecone, an insecticide spread in the past in banana plantations, is now recognized as a major ecological, economic, and social crisis in Guadeloupe and Martinique Islands. Due to its physical and chemical properties, this molecule is particularly persistent in the natural environment. Volcanic soil of Guadeloupe and Martinique contain allophanes (amorphous clays), which favor chlordecone trapping due to their structure and physical properties. Thus, with this trapping ability, allophanes serve as a vector allowing chlordecone to contaminate runoff waters and, finally, the sea. In the present publication, several studies recently conducted in the Lesser Antilles have been compiled in order to evaluate the desorption of chlordecone from allophanes when arriving in the estuarine environment and to determine the transfer of chlordecone along marine trophic food webs. The experiments showed that 20% of the initial quantity of chlordecone was released from allophanes in estuarine conditions and 10% in the marine environment. These results could explain the high level of contamination found in the suspended organic matter and zooplankton in the coastal areas located downstream of the contaminated watersheds. The contamination of the marine food webs of mangroves, seagrass beds, and coral reefs is dominated by a contamination "by bath" in littoral waters containing chlordecone and by bioamplification seawards.

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Assessment of the contamination of marine fauna by chlordecone in Guadeloupe and Martinique (Lesser Antilles)

Cited by 22 publications

References 17 publications

Different transfer pathways of an organochlorine pesticide across marine tropical food webs assessed with stable isotope analysis

Different transfer pathways of an organochlorine pesticide across marine tropical food webs assessed with stable isotope analysis

The invasive lionfish, Pterois volitans, used as a sentinel species to assess the organochlorine pollution by chlordecone in Guadeloupe (Lesser Antilles)

Environmental fate of chlordecone in coastal habitats: recent studies conducted in Guadeloupe and Martinique (Lesser Antilles)

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