Fish Counts

Anadromous fish passing upstream through the Holyoke Fish lift are identified and counted during the spring and early summer migration season.  Continuous counts are collected and can be found here during the season.  Please note, weekly fish counts are subject to change as quality control checks are completed throughout the season. Also, see historical fish counts from the Fishway.

For updates on fish counts visit US Fish & Wildlife Service.

2023 Upstream Fish Passage Counts

Fish Counts
Species Total
American Shad 277,367
Blueback Herring 2,211
Gizzard Shad 60
Striped Bass 116
Sea Lamprey 21,168