Observing smallmouth bass gills for abnormalities

Nonlethal smallmouth bass sampling is being done to address health concerns and population declines that may be associated with polyfluoroalkyl substances (PFAS) in the upper Potomac River.  As part of our nonlethal sampling methods, a health assessment index (including gill abnormalities) in addition to blood/plasma analysis for PFAS will help us better understand the health effects of PFAS on smallmouth bass.  PFAS is a known carcinogen and thyroid, immune, and endocrine disruptor.  To learn more, please check out our latest manuscript on PFAS bioaccumulation in the plasma of smallmouth bass at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8198932/pdf/ijerph-18-0588….