PA Species by WatershedS
The PA Species by Watersheds Table (PDF) lists most Pennsylvania fishes occurring naturally in or introduced into Pennsylvania’s major watershed systems. Listings denote any known occurrence.
EN - Endangered
TH - Threatened
C - Candidate
EN - Believed extirpated (watershed indications are historical occurrences)
DL - Delisted (removed from the endangered, threatened, or candidate species list due to significant expansion of range and abundance)
I = Introduced N = Native N = Present in drainage, status uncertain at this time