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Artemia genus may be affected by the widespread use of methylparaben: the example of A. franciscana

AuthorsMartín-Villamil, M.; Comeche, Amparo; Picó, Yolanda; Varó, Inmaculada
A. franciscana
Issue Date4-Sep-2016
Citation30th ESCPB Congress (2016)
AbstractNowadays parabens are used as preservatives in cosmetics, toiletries, pharmaceutical drugs and foodstuffs. Because of its widespread use, the occurrence of parabens in aquatic environments, including marine and hypersaline environments, are frequent. Methyl- and propylparaben are the most commonly used in cosmetics. To date there are very few studies on the toxicity of methylparaben (MeP) on aquatic invertebrates, and in the case of Artemia, no data exists. In this study, the toxicity of an emerging pollutant, such as MeP is analyzed in the sexual species Artemia franciscana, due its presence in coastal areas and marine saltworks in the Mediterranean region. For this reason, we tested MeP acute toxicity (LC50-24h) in nauplii, and their chronic effect (9 days) was evaluated by measuring survival and growth under two sublethal concentrations (0.05 and 0.1 mg·L-1). Also, the effect on several key enzymes involved in: antioxidant defences (catalase (CAT), and gluthathion-S-transferase (GST)), neural activity (cholinesterase (ChE)) and xenobiotic biotransformation (carboxylesterase (CbE), was assessed after 48h under sublethal exposure. A. franciscana nauplii are resistant to MeP (LC50-24h = 131.4 mg·L-1). MeP significantly affects survival and growth in chronic exposure to sublethal concentrations tested. In addition, MeP causes significant alterations in CAT activity after 48h exposure to the highest MeP concentration tested. However, no significant effect on ChE, CbE and GST activities was found. These results indicate that A. franciscana is resistant to MeP, although chronic exposures (up to 9 days) to sublethal concentrations affect survival and growth. Furthermore, the inhibition of CAT activity points out the oxidative stress effect of MeP in Artemia. We discuss the potential implications of our results on Artemia genus biodiversity and aquaculture development.
DescriptionTrabajo presentado en el 30th New European Society for Comparative Physiology and Biochemistry (ESCPB Congres), celebrado en Barcelona (España) del 4 al 7 de septiembre de 2016
Appears in Collections:(IATS) Comunicaciones congresos
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