About The Species

Alewife are an anadromous species (can live in both fresh and salt water). Some alewife stay in fresh water all their lives. Others migrate to the ocean and return to freshwater to spawn. Alewife populations have seen big declines throughout much of their range. They are vulnerable to many stressors and threats including blocked access to spawning grounds and habitat degradation caused by dams and culverts.

Alewife is listed as a candidate to be listed under the Endangered Species Act.

Learn more about alewife

Status

ESA Candidate

throughout its range

Scientific Classification

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Clupeiformes
Family
Clupeidae
Genus
Alosa
Species
pseudoharengus