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Shedd Aquarium


Study reveals impact of sewage overflows on Chicago river ecosystem

A new study reveals that untreated wastewater released into the Chicago River during extreme rain events significantly alters the freshwater ecosystem. Zooplankton populations disappeared or increased dramatically, affecting the entire food web and potentially infusing harmful chemicals into the water.

SourceShedd Aquarium·JournalKnowledge and Management of Aquatic Ecosystems·TypeObservational study·DateMay 20, 2025

Research reveals novel herpesvirus in South American pinnipeds

Scientists detect Otariid gammaherpesvirus 1 (OtGHV1) and a novel virus Otariid gammaherpesvirus 8 (OtGHV8) in South American sea lions and fur seals, highlighting the importance of continued research into animal health and ecosystem dynamics. The discovery underscores the complexity of viral ecology in pinniped populations.

SourceShedd Aquarium·JournalPLOS ONE·DateMar 6, 2024