Biology Commons^™

The Impact Of Polychlorinated Biphenyls On The Development Of Zebrafish (Danio Rerio), Megan Moma

WWU Graduate School Collection

Polychlorinated biphenyls (PCBs) are a group of 209 highly stable molecules that were used extensively in industry. Although their commercial use ceased in 1979, they are still present in many aquatic ecosystems due to improper disposal, oceanic currents, atmospheric deposition, and hydrophobic nature. PCBs pose a significant and ongoing threat to the development and sustainability of aquatic organisms. Our hypothesis is that PCB concentration will significantly affect development. Zebrafish (Danio rerio) were exposed to a standard PCB mixture (Aroclor 1254) for the first 5 days post fertilization, as there is a gap in knowledge during this important developmental …