Inter- and intraspecific variability in invertebrate acute toxicity response to Arsenic and Fluoride exposure
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Inter- and intraspecific variability in invertebrate acute toxicity response to Arsenic and Fluoride exposure

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Inter- and intraspecific variability in invertebrate acute toxicity response to Arsenic and Fluoride exposure

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dc.contributor.author López Gutiérrez, Luis Fernando
dc.contributor.author Rubio Franchini, Isidoro
dc.contributor.author Rico Martínez, Roberto
dc.contributor.author Mesquita Joanes, Francesc
dc.contributor.author Ramírez López, Elsa Marcela
dc.contributor.author Arredondo Figueroa, José Luis
dc.contributor.author Silva Briano, Marcelo
dc.date.accessioned 2018-12-03T09:16:14Z
dc.date.available 2018-12-03T09:16:14Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10550/68166
dc.description.abstract The adverse effects of arsenic and fluoride exposure on six groups of freshwater invertebrates were investigated. Acute toxicity tests (48-h) with arsenic trioxide (As2NO3) resulted in the following pattern of sensitivity: Daphnia magna 24-h-old = Brachionus patulus 72-h-old = Daphnia. cf. prolata, 21-d-old = D. magna 5-d-old > Heterocypris incongruens juvenile instars > Culex sp. Heterocypris juv. incongruens instars were the second group more tolerant to arsenic and the second group that bioconcentrates arsenic the least. In contrast, invertebrates exposed to sodium fluoride (NaF), showed a different pattern of sensitivity: H. incongruens instars > B. patulus = D. magna 24-h-old > D. cf. prolata 21-d-old = Culex sp. = D. magna 5-d-old. Our results suggest that all species tested might be considered good model tests organisms for As toxicity except H. incongruens. The rotifer B. patulus did not accumulate either arsenic or fluoride; and its sensitivity was intermediate for both toxicants. In contrast, D. cf. prolata accumulated more fluoride and was also (together with 5-d-old D. magna) the most tolerant to fluorine. In the case of arsenic, 5-d-old D. magna were the organisms with highest accumulation rates, but their sensitivity was similar to all other species (except for Culex sp. and H. incongruens). Interestingly, H. incongruens juv. instars have low sensitivity to As but are the most sensitive species to fluoride exposure. These results point out to the need of consider several invertebrate species as model organisms for environmental protection of particular ecosystems, or that some freshwater species have the potential to be used as fluorine bioaccumulators in remediation processes.
dc.language.iso eng
dc.relation.ispartof Journal of Environment and Health Science, 2018, vol. 4, num. 1, p. 1-10
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source López Gutiérrez, Luis Fernando Rubio Franchini, Isidoro Rico Martínez, Roberto Mesquita Joanes, Francesc Ramírez López, Elsa Marcela Arredondo Figueroa, José Luis Silva Briano, Marcelo 2018 Inter- and intraspecific variability in invertebrate acute toxicity response to Arsenic and Fluoride exposure Journal of Environment and Health Science 4 1 1 10
dc.subject Invertebrats d'aigua dolça
dc.subject Arsènic Toxicologia
dc.subject Zoologia
dc.title Inter- and intraspecific variability in invertebrate acute toxicity response to Arsenic and Fluoride exposure
dc.type info:eu-repo/semantics/article
dc.date.updated 2018-12-03T09:16:14Z
dc.identifier.doi https://doi.org/10.15436/2378-6841.18.1659
dc.identifier.idgrec 126829

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