• Evaluate the polyculture of yellow perch in cages with freshwater prawns in ponds.
• Evaluate the effect of culture temperature on growth and survival of yellow perch.

The goal of this research is to purify and identify cell growth-promoting activity found in fish embryo extract.

The objective of this research is to quantify differences molecular level genetic damage to bullhead catfish in the heavily contaminated Lake George reservoir versus levels of damage in bullhead catfish from the virtually uncontaminated Jasper Pulaski reservoir using the alkaline DNA unwinding method.

The objectives of this study are to:

• Study the sources and contamination levels of enteric bacteria and viruses in Burns Ditch, one of the most polluted streams that flow into Lake Michigan in Northwest Indiana.
• Determine the impact of the pollution of Burns Ditch on the microbial quality of lake front water off West Beach, located three kilometers west of the water outfall.
• Use a molecular approach to detect viruses in stream and lake waters.
• Use a computer-based image analysis system to determine the quantity of viruses in water samples.

The objectives of this project are to:

• Describe the longitudinal distribution of adult and larval zebra mussels in streams owing from colonized lakes.
• Test mechanisms contributing to the apparent “settlement bottleneck” for zebra mussels in streams.
• Test whether predators may influence the invasibility of streams by zebra mussels.
• Measure responses of other aquatic biota to the presence of zebra mussels in lake-outflow environments.

Our three major objectives are to determine:

• The potential competitive interactions between exotic
  Eurasian ruffe and native yellow perch in Lake Michigan and throughout the Great Lakes, through new knowledge of their preferences for prey and habitat.
• How predators (e.g., pike) and another exotic animal, zebra mussels, might affect the success of ruffe and their interactions with yellow perch in the Great Lakes.
• The current composition of benthic macroinvertebrates in Lake Michigan to generate a baseline prior to the anticipated invasion by ruffe.