Migratory Fish Restoration
How many miles of main stem freshwater rivers are accessible to river herring in the Piscataqua Region?
As of 2016, 42% of the historical distribution for river herring in the rivers of the Piscataqua Region has been restored. Additionally, removal of the Great Dam in Exeter in July 2016 has improved/enhanced river herring passage on the Exeter River.
For the Exeter, Cocheco, and Winnicut Rivers 100% of freshwater miles historically accessible are once again open for fish passage as of 2017, assuming fish ladders provide limited access. Less than 30% access is open for the remaining main stem rivers. Overall, freshwater access for river herring has been restored to 42% of historical distribution within the main stems of the region’s major rivers (Figure 20.2).