- Identify specific radicals and other reactive species that are photochemically generated in water bodies of the Calumet Watershed
- Quantify the rates of generation of such species
- Relate the rates of active species generation to the water composition
- Develop a general protocol for carrying out such studies
- Develop a predictive model for the observed phenomena
- Identify implications and impacts of the findings
Sea Grant Illinois-Indiana
Results
Contamination of Wetland Sediments Indiana Dunes National Lakeshore: Implications for Wetland Restoration Strategies
- To quantify the current environmental quality, both in terms of metal concentrations and ambient conditions (pH, Eh temperature. groundwater flow directions and velocities), in different subenvironments (defined in terms of hydrologic, ecological and disturbance histories) of the Great Marsh, Indiana Dunes National Lakeshore
- To develop simple models/relationships to explain the spatial distribution of heavy metals across the Great Marsh and with depth within the sediments, and the environment conditions associated with enhanced mobility
- To use these models/relationships to determine the potential for heavy metal release associated with certain changes in hydrology, hydrochemistry and sediment chemistry that may occur during and following wetland restoration at the Great Marsh
Low Frequency Electromagnetism as an Effective Method for the Control of Zebra Mussel Infestation
- Investigate the application of extremely low frequency (ELF) electromagnetic (EM) radiation as an effective method for the control of zebra mussel (Dreissena polymorpha)
- Monitoring the survival of zebra mussels in water which has been irradiated by an ELF EM field via the
efflux of the metal ions Ca2+, Mg2+, Na+ and K+ from zebra mussels exposed to the field - Developing quantitative mathematical models will to interpret the experimental findings
Round Goby and Mottled Sculpin Spawning Interactions
- Determine whether round gobies interfere with mottled sculpin spawning
- Compare spawning shelter requirements of the two species in a effort to find methods of minimizing round goby spawning success while maximizing mottled sculpin spawning success
Dispersal of Exotic Species in the Great Lakes: Crayfish as a Model System for Benthic Species
- Reconstruct the chronology of invasions of Orconectes rusticus and other nonnative crayfishes into the Great Lakes
- Use genetic analyses of the regions in Lake Michigan where O. rusticus is displacing O. propinquus
- Predict the future distribution of O. rusticus in the Great Lakes by comparing the environmental requirements of O. rusticus (especially substrata) with the characteristics of Great Lakes littoral zones
Quantifying pathways of nonindigenous aquatic species
- Determine the importance of the trades in live bait, pets, water gardens, and biological supplies as pathways for the introduction of nonindigenous freshwater species
- Estimate the ecological and economic risks associated with given species in trade
- Reduce the numbers of high risk species in trade and to reduce the likelihood of release of organisms by customers
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