After a 25-acre Lake Erie wetland was reconnected, sonar recorded 3.44 million fish detections

A reconnected 25-acre Lake Erie wetland recorded an influx of aquatic wildlife, with high-resolution sonar detecting 3.44 million fish movements into and out of the restored habitat.

The research found that fish activity varied between daytime and nighttime. Those patterns offer insights into how aquatic species use restored coastal ecosystems.

The findings could help shape management strategies for restoring wetlands across the Great Lakes.