Immune effects of HFO on European sea bass, Dicentrarchus labrax, and Pacific oyster, Crassostrea gigas.
The European sea bass, Dicentrarchus labrax, and the Pacific oyster, Crassostrea gigas, were exposed to a soluble fraction of heavy fuel oil for 5 and 9 days, respectively. The organisms were then transferred to non-contaminated seawater for 1 month. The bioaccumulation and elimination of PAHs in contaminated tissues were dissimilar between species. In fish, acenaphthene and naphthalene were detected and naphthalene was still detectable 30 days after the beginning of the recovery period. In oysters, on the other hand, pyrene and phenanthrene were bioaccumulated and 14 days after exposure no more PAHs were detected. Concerning innate immune parameters, the increase of haemolytic activity of the alternative complement pathway in fish and the reduction of phenoloxidase activity in oysters endured, respectively, 1 and 2 weeks in contaminated organisms. This indicates that these two enzymatic cascades could be quite useful for monitoring pollution by oil.
Bado-Nilles
Anne
A
LIENSs Littoral Environnement et Sociétés UMR 6250 CNRS Université de La Rochelle, La Rochelle, France. Anne.Bado.Nilles@cedre.fra
Quentel
Claire
C
Auffret
Michel
M
Le Floch
Stéphane
S
Gagnaire
Béatrice
B
Renault
Tristan
T
Thomas-Guyon
Hélène
H
D000818:Animals; D000917:Antibody Formation / Q000187:drug effects; D001492:Bass / Q000276:immunology* / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D001822:Body Burden; D016923:Cell Death; D003170:Complement Pathway, Alternative / Q000187:drug effects; D049896:Crassostrea / Q000187:drug effects* / Q000276:immunology / Q000378:metabolism; D004784:Environmental Monitoring / Q000379:methods; D029941:Fish Proteins / Q000378:metabolism; D005648:Fuel Oils / Q000633:toxicity*; D006461:Hemolysis / Q000187:drug effects; D007107:Immune System / Q000187:drug effects*; D007113:Immunity, Innate / Q000187:drug effects; D014442:Monophenol Monooxygenase / Q000378:metabolism; D010125:Ostreidae / Q000187:drug effects* / Q000276:immunology / Q000378:metabolism; D010587:Phagocytosis / Q000187:drug effects; D010865:Pilot Projects; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism / Q000633:toxicity*; D015203:Reproducibility of Results; D012623:Seawater / Q000737:chemistry; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000378:metabolism / Q000633:toxicity*
D015415:Biomarkers; D029941:Fish Proteins; D005648:Fuel Oils; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D014442:Monophenol Monooxygenase