Abstract:
:This study was conducted to evaluate the use of biochemical biomarkers and microbiological analysis to identify levels of oyster contamination at different ports in São Luís Island (Maranhão), Brazil. Oysters were analyzed for total coliforms, thermotolerant coliforms, Escherichia coli and Aeromonas spp. In addition, tissue was removed from the digestive gland to determine the glutathione-S-transferase (GST) and catalase (CAT) activity. The highest percentage of microbiological contamination of oyster samples occurred during the rainy season. The activity of GST and catalase in oysters was also higher in the rainy season, coinciding with the greatest abundance of total and thermotolerant coliforms. Among the prospective biomarkers, GST showed the best results for identification of areas with higher levels of contamination.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Ribeiro EB,Bastos LS,Galeno LS,Mendes RS,Garino F Jr,Carvalho-Neta RN,Costa FNdoi
10.1016/j.marpolbul.2016.09.013subject
Has Abstractpub_date
2016-12-15 00:00:00pages
182-186issue
1-2eissn
0025-326Xissn
1879-3363pii
S0025-326X(16)30734-2journal_volume
113pub_type
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journal_title:Marine pollution bulletin
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