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Water chestnut (Trapa natans)
Photo credit:  © Robert Aguilar, Smithsonian Environmental Research Center


(Alosa pseudoharengus)

Report this Species!

If you believe you have found this species in its invasive range in Pennsylvania, please report your findings to iMapInvasives by submitting an observation record.

Species at a Glance

Learn more about the Alewife and its impacts by viewing information available in our Gallery of Invaders.

Range Information

The map below depicts both the native and invasive ranges of Alewife in Pennsylvania, displayed using a HUC 12 watershed layer.

Data used to create this map was provided by Pennsylvania's Field Guide to Aquatic Invasive Species (2015).

Native range

Invasive range

Pennsylvania iMapInvasives, invasive here but not there, Alewife, Alosa pseudoharengus
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