Common and inter-specific toxic effects in three wild fish species after chronic gamma irradiation of early stages - Service de Radioprotection des Populations et de l'Environnement - IRSN/PSE-ENV/SERPEN Accéder directement au contenu
Article Dans Une Revue Journal of Environmental Radioactivity Année : 2024

Common and inter-specific toxic effects in three wild fish species after chronic gamma irradiation of early stages

Résumé

The objective of this study was to investigate the effects of gamma irradiation on the aquatic environment. We used three wild fish species to compare phenotypic responses with a fish model such as Danio rerio. We focused on embryonic development, a sensitive life stage to stressors like ionizing radiation, to evaluate the effects of exposure to 0.5 and 5 mGy h−1 on Arctic char, trout and stickleback embryos from fertilization to free-swimming larvae. Irradiation did not cause mortality but induced an acceleration of hatching in the three species. These new data on wild species, obtained under comparable irradiation conditions, did not go against the threshold values for the protection of freshwater aquatic ecosystems. Moreover, irradiation caused inter-specific sublethal effects, such as an increase in non-eyed egg proportion in Arctic char, an increase in the incubation period in trout and an acceleration of larval mortality in stickleback. The consequences of these early effects on the adult stage remain to be studied.
Fichier principal
Vignette du fichier
2024 Simon et al.pdf (3.07 Mo) Télécharger le fichier
Origine Publication financée par une institution
licence

Dates et versions

irsn-04604557 , version 1 (10-06-2024)

Licence

Identifiants

Citer

Olivier Simon, Noémie Guirandy, Lea Dasque, Nicolas Dubourg, Virginie Camilleri, et al.. Common and inter-specific toxic effects in three wild fish species after chronic gamma irradiation of early stages. Journal of Environmental Radioactivity, 2024, 277, pp.107459. ⟨10.1016/j.jenvrad.2024.107459⟩. ⟨irsn-04604557⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More