 ISSN 0235-7224 ISSN 2029-0586 (online) |
2010 m. Nr. 3-4 Environmental genotoxicity and cytotoxicity studies in mussels and fish inhabiting northern Atlantic zones impacted by aluminum industry
Micronuclei (MN), nuclear buds (NB), fragmented-apoptotic (FA) and bi-nucleated (BN) cells were analyzed in Mytilus edulis gills and in kidney erythrocytes of Atlantic cod Gadus morhua collected from three boreal locations in the North Atlantic, representing the pollution gradient originating from aluminium smelter industry (Mosjøen, Norway). The highest MN, NB, FA and BN values were measured in mussels from the most polluted site, Halsøy, which is located close to the aluminium smelter works. In Halsøy, a 5.2-fold increase (p < 0.0001) in MN, a 3.4-fold increase in fragmented-apoptotic cells (p = 0.0001), a 1.8-fold increase in nuclear buds (p = 0.0002) and a 1.7-fold increase in bi-nucleated cells (p = 0.0524) was found as compared to the reference site. A difference in the incidence of MN (p = 0.0052) and FA (p = 0.0003) were found in mussels from the reference and an intermediate contaminated site (Hundålbukta). A significant difference in MN (p = 0.0087) and NB (p = 0.0186) frequencies were observed in fish kidney immature erythrocytes from Halsøy and Hundålbukta sites. Keywords: genotoxicity, cytotoxicity, micronuclei, mussels, cod, North Atlantic, aluminum industry |
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