LE BIHANIC, Florane; SOMMARD, Vivien; PERRINE, De Lansalut; PICHON, Anaik; GRASSET, Julie; BERRADA, Saadia; BUDZINSKI, Hélène; COUSIN, Xavier; MORIN, Benedicte; CACHOT, Jérôme

doi:10.1016/j.ecoenv.2014.12.011

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

LE BIHANIC, Florane

Environnements et Paléoenvironnements OCéaniques [EPOC]

SOMMARD, Vivien
Environnements et Paléoenvironnements OCéaniques [EPOC]

PERRINE, De Lansalut
Environnements et Paléoenvironnements OCéaniques [EPOC]

Langue

Article de revue

Ce document a été publié dans

Ecotoxicology and Environmental Safety. 2015-03, vol. 113C, p. 321-328

Résumé en anglais

Benz[a]anthracene (BaA) is a ubiquitous polycyclic aromatic hydrocarbon found in numerous aquatic ecosystems. However, ecotoxicological data in aquatic organisms are scarce. To remedy this lack of data, Japanese medaka (Oryzias latipes) embryos were exposed to BaA and toxic effects were investigated at multiple toxicological endpoints. Japanese medaka embryos were incubated onto BaA-spiked artificial sediment for 9 days at low or moderate environmental concentrations ranging from 0.9 to 12µgg(-1) dw. BaA-exposed embryos exhibited significant tachycardia. BaA exposure was also shown to increase CYP1A activity in the hepato-biliary tissue as well as craniofacial deformities and DNA damage in pro-larvae. The photomotor response of BaA-exposed larvae was reduced in comparison to the control group. According to this set of tests, the lowest tested and observed effect concentration (LOEC) for Japanese medaka early life stages was equivalent to 0.92µgg(-1) dw of BaA. This concentration fall into the range of concentrations frequently encountered in sediments of polluted aquatic ecosystems. Taking into consideration these results, BaA represents a threat for fish early life stages in particular those developing onto or into contaminated sediments.< Réduire

Mots clés en anglais

benz[a]anthracene

spiked sediment

swimming behavior

teratogenicity

dna damage

in vivo erod activity

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Environmental concentrations of benz[a]anthracene induce developmental defects and DNA damage and impair photomotor response in Japanese medaka larvae.

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche