Skip to Main content Skip to Navigation

Consequences of a contaminant mixture of bisphenol A (BPA) and di-(2-ethylhexyl) phthalate (DEHP), two plastic-derived chemicals, on the diversity of coastal phytoplankton

Abstract : To assess the impact of two plastic derived chemicals: bisphenol A (BPA) and the di-2-ethylhexyl phthalate (DEHP), on phytoplankton biomass and community structure, microcosm incubations were performed during spring and summer, with offshore and lagoon waters of a southwestern Mediterranean ecosystem. Phytoplankton were exposed to an artificial mixture of BPA and DEHP and to marine water previously enriched with plastic-derivative compounds, originated from in situ water incubations of plastic debris for 30 days. After 96h of incubation, changes were observed in phytoplankton biomass in the contaminated microcosms, with a net decrease (up to 50% of the control) in the concentration of Chlorophyll a in offshore waters. Concomitantly, plastic-derivative contamination provoked structural changes, especially for offshore waters. This suggests a relative tolerance of the lagoon communities to BPA and DEHP contamination, related to the dominance of Chaetoceros spp., which could potentially be used as a bioindicator in bioassessment studies. 2 Highlights: BPA and DEHP release from plastic debris was higher in spring than in summer. BPA and DEHP contaminations strongly impact phytoplankton biomass and structure. Impacts of BPA and DEHP were more marked in offshore, relative to lagoon, waters. Diatoms were more tolerant to BPA and DEHP than the other phytoplankton groups.
Document type :
Journal articles
Complete list of metadatas

https://hal.ird.fr/ird-02048491
Contributor : Olivier Pringault <>
Submitted on : Thursday, January 30, 2020 - 7:39:48 AM
Last modification on : Friday, January 31, 2020 - 1:22:09 AM

File

M'Rabet et al., 2019.pdf
Files produced by the author(s)

Identifiers

Citation

Charaf M’ Rabet, Ons Kéfi-Daly Yahia, Douglas Couet, Sonia Khadija Maïté Gueroun, Olivier Pringault. Consequences of a contaminant mixture of bisphenol A (BPA) and di-(2-ethylhexyl) phthalate (DEHP), two plastic-derived chemicals, on the diversity of coastal phytoplankton. Marine Pollution Bulletin, Elsevier, 2019, 138 (1), pp.385-396. ⟨10.1016/j.marpolbul.2018.11.035⟩. ⟨ird-02048491⟩

Share

Metrics

Record views

263

Files downloads

59