Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Blueback herring and alewife (river herring) are two species of anadromous fish that are important in Northeast coastal rivers.
Public Domain.
USGS, Massachusetts Cooperative Fish and Wildlife Research Unit
