LEAD Group Presentation

Let me begin today by offering my congratulations to each of you who is a member of this new LEAD class. You are embarking upon a truly exciting, rewarding opportunity, important to both you and Nebraska. Our state needs good leaders, people dedicated to keeping our organizations, communities, and Nebraska strong, and moving forward. We need leaders of courage and compassion, able to think clearly, assess information, formulate a plan, and adjust that plan as needed. We need leaders who work toward a common good.

Photo-induced toxicity of anthracene in the Antarctic shallow water amphipod, Gondogeneia antarctica

The photo-induced toxicity of anthracene was investigated as the mortality in Antarctic shallow water amphipod, Gondogeneia antarctica, at different concentrations of anthracene and different periods of exposure to natural sunlight and artificial UVA and UVB radiations. When exposed to natural sunlight, animals contaminated in the dark and placed in clean water or in anthracene solutions showed different degrees of mortality, dose-time dependent. Effects were even more evident when these animals were exposed to artificial UVA or UVB radiations. Depuration seemed to be a slow process. The effects of UV radiation and anthracene alone and the effects of the interactions of these two stressors implied that solar radiation is an important parameter that deserves consideration in the environmental assessment of polycyclic aromatic hydrocarbons in Antarctic coastal waters. G. antarctica proved to be a good bioindicator for the phototoxicity of anthracene in Antarctic shallow waters.