Alewife of many native species of fish. In an effort to control them biologically, Pacific salmon were introduced, only partially successfully. As a marine fish, the alewife is a US National Marine Fisheries Service "Species of Concern". Alewives reach a maximum length of about 40 cm (16 in), but have an average length of about 25 cm (10 in). The front of the body is deep and larger than other fish found in the same waters, and its common name is said to come from comparison with a corpulent female tavernkeeper ("ale-wife"). In southwestern Nova Scotia, it is called a kiack
Alewife Brook Reservation constructed a connection from the Alewife area through what is now Davis Square to Somerville Junction. Most of this connection is now the Somerville Community Path and Alewife Linear Park, but at its western end it passed through what is now Alewife Center and met up with the Lexington, after curving past the stub ends of Fairmont and Lafayette Streets. This new connection also had a southerly fork known as the Fitchburg Cutoff, passing just north of the present-day Alewife Station, crossing the now-removed Fitchburg-Lexington connection, and joining the Fitchburg mainline. A map from 1903 shows these railroads criss-crossing the