Alewife Cambridge, and Somerville to the Mystic River. The brook gives its name to the Alewife Brook Parkway and the Alewife Brook Reservation. The Red Line (MBTA) of Boston's T ends at the Alewife station, so the name of this fish adorns the front of every northbound Red Line train. In the Southeast US, when sold and used as bait, the fish is often referred to as "LY". Both anadromous and landlocked forms occur. The landlocked form is also called a sawbelly or mooneye (although this latter name is more commonly applied to "Hiodon" spp.). Adult alewives are caught during their
Alewife taxa ("Bythotrephes longimanus", "Leptodiaptomus ashlandi", "Leptodiaptomus minutus", "Leptodiaptomus sicilis", and "Leptodora kindtii"). Alewife populations have seen big declines throughout much of their range. Several threats have most likely contributed to their decline, including loss of habitat due to decreased access to spawning areas from the construction of dams and other impediments to migration, habitat degradation, fishing, and increased predation due to recovering striped bass populations. In response to the declining population trend for alewives, the states of Massachusetts, Rhode Island, Connecticut, Virginia, and North Carolina have instituted moratoria on taking and possession. The alewife is a US National Marine Fisheries