Consulta: creatorFacets:"Bouchon, Claude"
Registros recuperados: 4
Data/hora: 01/06/2024 11:36:27

Herbivorous fishes and the potential of Caribbean marine reserves to preserve coral reef ecosystems
Provedor de dados: 5
Autores: Kopp, Dorothee; Bouchon-navaro, Yolande; Louis, Max; Mouillot, David; Bouchon, Claude.
1. The development of macroalgae to the detriment of corals is now one of the major threats to coral reefs. Herbivorous fishes are partly responsible for algal regulation on coral reefs and their overexploitation favours the shift from scleractinian coral-dominated systems towards macroalgae-dominated systems. 2. Marine protected areas (MPAs) that have been established worldwide may benefit coral reefs through the maintenance of high densities of herbivorous fishes which regulate algal growth. 3. The paper assesses whether small MPAs in the Caribbean are able to enhance herbivorous fish stock and by controlling macroalgae help to maintain reef ecosystems. A visual census using band-transects was undertaken around Guadeloupe island where marine reserves...
Tipo: Text
Palavras-chave: Marine protected areas; Canonical analysis of principal coordinates; Sex change; Coral reefs; Phase shifts; Caribbean.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12214/9551.pdf

Environmental fate of chlordecone in coastal habitats: recent studies conducted in Guadeloupe and Martinique (Lesser Antilles)
Provedor de dados: 5
Autores: Dromard, Charlotte R.; Devault, Damien; Bouchon-navaro, Yolande; Allénou, Jean-pierre; Budzinski, Hélène; Cordonnier, Sébastien; Tapie, Nathalie; Reynal, Lionel; Lemoine, Soazig; Thomé, Jean-pierre; Thouard, Emmanuel; Monti, Dominique; Bouchon, Claude.
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...
Tipo: Text
Palavras-chave: Organochlorine pollution; Desorption; Allophane; Zooplankton; Trophic food webs; Bioamplification.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00484/59551/62539.pdf

Consolidation des connaissances sur la contamination de la faune halieutique par le chlordécone autour de la Martinique et de la Guadeloupe (Projet "CHLOHAL")
Provedor de dados: 5
Autores: Dromard, Charlotte; Allenou, Jean-pierre; Bouchon-navaro, Yolande; Lemoine, Soizig; Thouard, Emmanuel; Reynal, Lionel; Bertrand, Jacques; Bouchon, Claude.
Le projet CHLOHAL comportait deux études. La première portait sur la cartographie de la contamination par la chlordécone des espèces halieutiques autour des îles de la Martinique et de la Guadeloupe ; la seconde avait pour but d'analyser le cheminement de cette contamination dans les réseaux trophiques des écosystèmes côtiers (mangroves, herbiers de Phanérogames marines et récifs coralliens), dans le but d'élucider les mécanismes de transfert de cette pollution vers le milieu marin.  L’étude cartographique de la contamination des espèces halieutiques dans les deux îles du projet Chlohal confirme l’image globale de la sensibilité des zones polluées identifiées par les études antérieures. Elle met cependant en évidence des concentrations significatives sur...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00429/54058/55370.pdf

Assessment of the contamination of marine fauna by chlordecone in Guadeloupe and Martinique (Lesser Antilles)
Provedor de dados: 5
Autores: Dromard, Charlotte; Bodiguel, Xavier; Lemoine, Soazig; Bouchon-navaro, Yolande; Reynal, Lionel; Thouard, Emmanuel; Bouchon, Claude.
Chlordecone is an organochlorine pesticide, used in the Lesser Antilles from 1972 to 1993 to fight against a banana weevil. That molecule is very persistent in the natural environment and ends up in the sea with runoff waters. From 2003 to 2013, seven campaigns of samplings have been conducted to evaluate the level of contamination of fish, crustaceans, and mollusks. The present study is the first assessment and the first comparison of the concentrations of chlordecone between marine areas, taxonomic groups, and ecological factors like trophic groups or preferential habitat of fish species. The four most contaminated marine areas are located downstream the contaminated rivers and banana plantations. Crustaceans seemed to be more sensitive to the...
Tipo: Text
Palavras-chave: Chlordecone; Organochlorine pollution; Marine fauna; Contamination; Guadeloupe; Martinique.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00309/41989/41379.pdf