Inclusion of local, expert, or Indigenous knowledge about wildlife populations and their habitats can inform wildlife research, while also increasing knowledge holder engagement and support for wildlife conservation decisions.
Entrainment and breach caused by barges traversing the barrier are concerns as well because of the water movements they create and how they alter the electrical field. The accumulation of fish that we observed below the barrier, and the persistent challenging behavior, raises concerns about breaches any time the barrier is de-energized for maintenance or during intermittent power outages. Fish that were able to penetrate the farthest into the barrier system were smaller and tended to aggregate at the water surface, near the canal walls. Fish were relatively scarce within the barrier system during the winter and spring. We found that fish were most abundant below the electric barrier during the summer and fall, were observed near areas of peak voltage, and sometimes persistently challenged the barrier. molitrix) to Lake Michigan from the Illinois River. This electric barrier system serves to prevent the upstream migration of bighead carp (Hypophthalmichthys nobilis) and silver carp (H. We evaluated the abundance and behavior of wild fish within the electric barrier system in the Chicago Sanitary and Ship Canal.
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