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| Vignier, J.; Volety, A. K.; Rolton, A.; Le Goic, N.; Chu, F. -l. E.; Robert, Rene; Soudant, P.. |
| The 2010 Deepwater Horizon (DWH) oil spill released millions of barrels of oil and dispersant into the Gulf of Mexico. The timing of the spill coincided with the spawning season of Crassostrea virginica. Consequently, gametes released in the water were likely exposed to oil and dispersant. This study aimed to (i) evaluate the cellular effects of acute exposure of spermatozoa and oocytes to surface slick oil, dispersed mechanically (HEWAF) and chemically (CEWAF), using flow-cytometric (FCM) analyses, and (ii) determine whether the observed cellular effects relate to impairments of fertilization and embryogenesis of gametes exposed to the same concentrations of CEWAF and HEWAF. Following a 30-min exposure, the number of spermatozoa and their viability were... |
| Tipo: Text |
Palavras-chave: Deepwater Horizon oil spill; Oyster; Spermatozoa; Oocyte; Flow-cytometry. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00377/48851/51168.pdf |
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| Vignier, J.; Rolton, A.; Soudant, Philippe; Chu, F. L. E.; Robert, Rene; Volety, A. K.. |
| The Deepwater Horizon (DWH) disaster released crude oil in the Gulf of Mexico for 87 days, overlapping with the reproductive season and recruitment of the oyster Crassostrea virginica. The pelagic larval life stages of C. virginica are particularly vulnerable to contaminants such as polycyclic aromatic hydrocarbons (PAHs) and oil droplets. Based on their lipophilic properties, PAHs and oil droplets can adsorb onto phytoplankton and filter-feeding C. virginica larvae may be exposed to these contaminants bound to suspended sediment, adsorbed onto algal and other particles, or in solution. This study examined the effects of exposure of C. virginica larvae to algae mixed with DWH oil. In a 14-day laboratory exposure, 5 day-old C. virginica larvae were exposed... |
| Tipo: Text |
Palavras-chave: Deepwater Horizon oil; Droplet; Oyster larvae; Dietary exposure; PAH. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00473/58423/61445.pdf |
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