The invasive crayfish Cherax quadricarinatus facing chlordecone in Martinique: Bioaccumulation and depuration study
نویسندگان
چکیده
The redclaw crayfish, Cherax quadricarinatus , was introduced to Martinique Island for aquaculture purposes at the beginning of 21st century, in an attempt revitalize freshwater crustacean sector. Mainly due its high economical value, it intentionally released wild and caught sold by fishermen. Martinican rivers are polluted chlordecone, considered as one worst Persistant Organic Pollutants (POP). Despite dangerousness, used until 1993 French West Indies against a banana pest always found ecosystems. This study aimed investigate level contamination muscle crayfish wild, well potential bioconcentration depuration C. muscle. could allow us quantify risk consumers but also, evaluate process reduce related consumption. Using both in-vitro in-situ experiments, results highlighted importance chlordecone concentration water time exposure pollutant. seems be very quick continuous muscle, can detectable early 6 h exposure, whatever tested. Finally, appears that, even after 20 days chlordecone-free water, concentrations remained higher residual maximum limit (i.e. ng/g wet weight), concluding that decontamination not efficient, people serious. • CLD population. Toxicokinetics laboratory conditions. Positive correlation between 20-day ineffective achieve MRL exposed 2 μg/L. Human health concern consumers.
منابع مشابه
Distribution and establishment of the alien Australian redclaw crayfish, Cherax quadricarinatus, in South Africa and Swaziland
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In decapod crustaceans, a number of neurohormones regulating a variety of physiological processes, including reproduction, are to be found in the X-organ-sinus gland complex of the eyestalk. Bilateral eyestalk ablation was thus performed in mature males of the Australian red claw crayfish Cherax quadricarinatus with the aim of studying the role of eyestalk-borne hormones on spermatogenic activi...
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ژورنال
عنوان ژورنال: Chemosphere
سال: 2022
ISSN: ['0045-6535', '1879-1298']
DOI: https://doi.org/10.1016/j.chemosphere.2021.131926