Results: Researchers found non-native eastern banded killifish were associated with Lake Michigan and connected waters, rather than isolated kettle lakes, and primarily occurred at clearer sites potentially affected by dreissenid mussel invasions. More research is needed on the causes and consequences of eastern banded killifish invasions in Lake Michigan and adjacent waters, including an emphasis on their risk to the conservation of western banded killifish.

To combat Asian carp population expansion and decrease densities in the Upper Mississippi River the Illinosi River Biological Station is taking additional measures to monitor, control and manage Asian carp while densities are still relatively low using commercial fishers. The results will help determine how effective commercial harvesting can be on reducing Asian carp populations.

Anticipating where harmful invasive species may live outside of their native range is difficult. Scientists should use information from well-studied invasive species to make precautionary predictions of how different of an environment an emerging invasive species can tolerate relative to their native range.

Cordylophora caspia is an invasive hydroid with an expanding range in southern Lake Michigan. Little is known about the distribution and ecological effects of this benthic hydroid, but their predatory feeding behavior on invertebrates raises concern as to their effect on food availability for benthivorous fishes.