Physiological impacts of pollution exposure in seabird's progeny nesting in a Mediterranean contaminated area

MARINE POLLUTION BULLETIN

卷:142

Article

Oudi, Abir¹  Chokri, Mohamed Ali¹  Hammouda, Abdessalem¹  Chaabane, Rim²  Badraoui, Riadh³  Besnard, Aurelien⁴  Santos, Raphael^4,5 

[1] Univ Gabes, Fac Sci, Ecol Faune Terrestre UR17ES44, Zrig 6072, Gabes, Tunisia

[2] CHU Hedi Chaker Sfax, Lab Biochem, Sfax 3029, Tunisia

[3] Univ Sfax, Fac Med, Lab Histol Embryol, Sfax 3029, Tunisia

[4] PSL Res Univ, EPHE, CNRS, UM,SupAgro,IRD,INRA,UMR 5175,CEFE, F-34293 Montpellier, France

[5] Univ Appl Sci Western Switzerland, HEPIA, Ecol & Engn Aquat Syst Res Grp, 150 Route Presinge, CH-1254 Jussey, Switzerland

关键词: Biomarker;    Antioxidant;    Marine pollution;    Oxidative stress;    Sterna hirundo;    Genotoxicity;    Gulf of Gabes;    Reproductive impairment;    Chick body mass;   

DOI  :  10.1016/j.marpolbul.2019.02.056

来源: Elsevier

【 摘 要 】

Aquatic wildlife is exposed through trophic transfer of hazardous substances to several threats inducing physiological impairments. We aimed at assessing the impact of contamination in one of the hot spots of pollution along Mediterranean coasts, the gulf of Gabes in Tunisia, on Common tern Sterna hirundo, a piscivorous top predator bird. Firstly, we compared the reproductive effort of breeding adults through clutch size distribution in three sites with different levels of pollution. Then, a battery of genotoxicity and oxidative stress biomarkers was carried out to assess physiological impairments in chicks. While defense mechanisms showed a depletion, lipid peroxidation and genotoxicity increased significantly according to pollution level. The multi-biomarker approach used here, discriminated chicks according to contamination degree of their nesting sites. Increases in genotoxicity and oxidative stress were correlated to a decrease in chick body mass known to lead to long-term impacts on juvenile survival and recruitment in birds.

【 授权许可】

Free