Integration of physical, geochemical and biological analyses as a strategy for coastal lagoon biomonitoring

MARINE POLLUTION BULLETIN

卷:164

Article

Greggio, Nicolas^1,2  Capolupo, Marco^1,2  Donnini, Filippo¹  Birke, Manfred³  Fabbri, Elena^1,2  Dinelli, Enrico^1,2 

[1] Univ Bologna, Interdept Res Ctr Environm Sci CIRSA, Via S Alberto 163, I-48123 Ravenna, Italy

[2] Univ Bologna, Dept Biol Geol & Environm Sci, Piazza S Donato 1, I-40100 Bologna, Italy

[3] Fed Inst Geosci & Nat Resources, Stilleweg 2, D-30655 Hannover, Germany

关键词: Coastal lagoon;    Sediment geochemistry;    Metal bioaccumulation;    Biomarkers;    Biomonitoring;   

DOI  :  10.1016/j.marpolbul.2021.112005

来源: Elsevier

【 摘 要 】

Coastal lagoons are complex environments threatened by natural and anthropogenic stressors. Here, we tested the effectiveness of combining physical, geochemical and chemical measurements with biomarker data obtained in field-exposed marine mussels (Mytilus galloprovincialis) as a biomonitoring strategy for a highly pressured lagoon (Pialassa Baiona, Ravenna, Italy). Data showed a spatial trend of sediment contamination by Hg, Pt, Au, Ag, Mo, Re, Cd, Pd and Zn. Local conditions of high water temperature/low conductivity were detected among selected sites. After a 30-day in situ exposure, Ag and Hg were the most bioaccumulated elements (10 and 5 folds, respectively) in mussels followed by Sb, Al, Ti and Fe. Decreased survival, lysosomal dysfunctions, increased metallothionein content and peroxisome proliferation were observed in mussels in relation to metal spatial distribution and physico-chemical fluctuations. Overall, this study provides a further confirmation of the role of biomonitoring to reliably assess the environmental quality of highly pressured lagoons.

【 授权许可】

Free