Studies are designed to assess the biological effects of exposure to previously contaminated sediment, water, soil and natural food (diet) as well as in spiked samples of these matrices.

Our location and computer-interface exposure systems provide us with unique capabilities in aquatic and sediment toxicity to conduct exposures in natural full-strength seawater as well as in freshwater. The laboratory contains a salinity control system to automatically produce a range of salinities for estuarine studies based upon study needs.

The unique feature of our flow-through water systems is that chemical dosing, photoperiod and temperature in both acute and chronic exposure studies are automatically controlled and monitored via computer-interface systems. Sediment toxicity exposure systems are also automated to deliver and control overlying water volumes and different cycle times.

The toxicant exposure systems in the laboratory are used to evaluate the effects of short-term (acute) and long-term (chronic) exposures to chemicals in soil, sediment, water and diet to determine effects on survival, growth, development and reproduction of organisms. We can also monitor swimming behavior and respiration to measure attraction-avoidance responses, swimming speeds, locomotor patterns and  metabolism.


Single-species as well as multi-species outdoor microcosm studies are conducted. Freshwater, estuarine and full-strength

Flow-Through Systems

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