“…Comet assay has become one of the most popular tools for detecting DNA stand breaks in aquatic animals (Frenzilli et al, 2009) and has been employed to assess the DNA damage in aquatic vertebrates such as Cyprinus carpio (Arabi, 2004), Carassius auratus (Masuda et al, 2004), Danio rerio (Kosmehl et al, 2008) and Liza aurata (Pereira et al, 2009), and invertebrates such as Limnoperna fortunei (Villela et al, 2007), Dreissena polymorpha (Juhel et al, 2007), Polycelis feline (Horvat et al, 2005), Palaemonetes pugio (Lee et al, 2000(Lee et al, , 2008, Mytilus edulis (Rank and Jensen, 2003;Cheung et al, 2006) and Crassostrea virginica (Bissett et al, 2009). For in vivo studies in aquatic invertebrates such as oysters, mussels, clams and shrimp, cells from haemolymph, embryos, gills and digestive glands were used for Comet assay (Lee and Steinert, 2003).…”