A research paper authored by a researcher at Shedd Aquarium and published in Journal of Great Lakes Research assesses the fish species that spawn in the Chicago River to sustain and support resilient, biodiverse fish populations. Utilizing light traps at 10 locations in the Chicago River between the years 2020 and 2022, over 2,000 larval fish were collected, and their DNA revealed 24 different fish species present.
An incredible comeback: Chicago River fish populations show signs of recovery as 24 species spawn
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