Alewife. Common Name: Alewife. Other Names: Sawbelly. Scientific Name: Alosa Pseudoharengus. Origin: Native. Adult Size: Young of the year, alewives reach a length of 2 to 3 inches by their first fall and are usually 4 to 6 inches long at bdsmxxx.xyz reach sexual maturity at age 2 and females mature at age 3. Identification: Alewives are predominantly silver, except for a grayish green back. Sep 12, · Additionally, alewife (both age-0 and adults) show significant spatial overlap with age-0 rainbow smelt (Osmerus mordax) in Lake Champlain, which could alter population dynamics of both species through competition (between age-0 alewife and smelt) or predation (by adult alewife on age-0 of both species) and limit the availability of these forage fish to larger predators such as lake trout .
Alosa pseudoharengus Alewife spends its adult life in the ocean and returns to coastal streams to spawn. It also lives in landlocked lakes where it has been introduced. In lakes it swims in schools and occupies both deep and shallow waters.