In 2005, the number of smallmouth bass in Pennsylvania's Susquehanna and Juniata rivers decreased dramatically. And for a long time, the reason why was a mystery. Photo: NFWS

Virus Linked to Smallmouth Bass Deaths in Susquehanna

Marie Cusick·
WaterWildlife

Researchers have found a critical piece of evidence in solving the unexplained die-offs of smallmouth bass in the Susquehanna River— a largemouth bass virus.

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This story is produced in partnership with StateImpact Pennsylvania, a collaboration among The Allegheny Front, WPSU, WITF and WHYY to cover the commonwealth's energy economy.