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precedente: S1.4
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livello superiore: S1
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seguente: S1.6
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S1.5 - New Biondicators for ecotoxicological assessment of Mediterranean
off-shore extraction: barnacles (Balanus trigonus and Balanus
perforatus)
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Mori Gabriele (1)*,
Ferraro Maria (2),
Fossi Maria Cristina (1),
Casini Silvia (1),
Marsili Letizia (1),
Stefanini Giacomo (1),
Porcelloni Serena (1),
Caliani Ilaria (1),
Bianchi Nicola (1),
Maltese Silvia (1),
Alberti di Catenaia Cesare (2)
| (1) |
Dipart. di Scienze Ambientali 'G.Sarfatti', Università degli
Studi di Siena, Via Mattioli 4, 53100 Siena, Italia |
| (2) |
Eni Division Exploration and Production, Via Emilia 1, 20097 S.
Donato Milanese (MI), Italia |
| * |
mori22@unisi.it |
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The aim of this study is to validate a methodology based on biomarker
responses in the barnacles (Balanus trigonus and Balanus
perforatus) to assess ecotoxicological effects associated with off-shore
extraction. This study is a part of the Biomare project, between the
Biomarkers Laboratory (Department of Environmental Science, Siena University)
and ENI Exploration and Production Division. During laboratory phase (I)
biomarker responses in barnacles exposed to gasoline (10, 100, 1,000 ppm) and
produced waters were investigated. In phase (II) biomarkers were validated
during a biomonitoring program in the Mediterranean Sea. The selected platform
was 'Cervia B' in the northern Adriatic; the 'Paguro' platform, sunk in 1965,
was chosen as a comparison site. Several biomarkers (MFO activities (BPMO,
Reductases), AChE, antioxidant enzymes, porphyrins) and contaminants
(PAHs and trace metals) were measured. Laboratory and field studies
showed high sensitivity of response in both species for all biomarkers tested,
particularly MFO and esterases, and high bioaccumulation capacity. In
conclusion, this study provided innovative results for the use of the selected
bioindicators and for the responses generated after chronic and acute exposure
to petroleum derivatives. These results suggest that barnacles could be used
in future biomonitoring programs to evaluate both the effects of petroleum
derived contamination, and the level of contamination itself.
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consulta l' Indice analitico (alfabetico per autore) |
sfoglia l' Indice delle sessioni del Congresso |
a cura di Comoglio, Comino, e Bona
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