Details

Autor(en) / Beteiligte

• Alvarez, M. Fernanda
• Villar-Argaiz, Manuel
• Vela Soria, Fernando
• Fernández Zambrano, Alejandra
• Medina-Sánchez, J. Manuel
• Carrillo, Presentación

Titel

Thresholds and interactive effects of BPA-gradient and temperature on life history traits of Daphnia magna

Ist Teil von

• Environmental pollution (1987), 2024-08, Vol.355, p.124186-124186, Article 124186

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Bisphenol A (BPA), a synthetic organic compound widely used in the production of plastics, is recognized as an emerging contaminant because of its toxicity and the potential risks associated with bioaccumulation in organisms. Despite potential environmental hazards, there is a lack of studies examining BPA toxicity mechanisms and its potential impact on various trophic levels, with even fewer exploring whether global stressors such as temperature can affect the toxicity of BPA in organisms. Our aim was to assess the combined impact of BPA and varying temperature regimes on life-history traits in Daphnia magna. Our results revealed a significant impact of BPA on the growth, reproduction, and accumulated moulting of D. magna, with adverse effects primarily associated with the assimilation of BPA in algae rather than the BPA present in the medium, pointing to a trophic transfer mechanism. The interactive effect between BPA and temperature demonstrated a slight stimulatory effect of low BPA level on D. magna growth rate under warming constant conditions, but an inhibitory under warming fluctuating temperatures. Additionally, a BPA threshold was identified, below which growth became temperature-dependent. This study emphasizes the crucial role of considering temperature in predicting how toxins may affect Daphnia within aquatic food webs. [Display omitted] •Realistic BPA levels negatively affected life-history traits of Daphnia magna.•Harmful BPA-effects on D. magna were primarily mediated by BPA-assimilated in food.•BPA effect on D. magna was modulated by temperature at low BPA levels.•D. magna growth was temperature-dependent below a BPA threshold.