In January 1993, The Waterworks Group initiated the Bay Scallop Restoration Project as an attempt to restore the once prolific bay scallop within the Westport River Estuary in Massachusetts. This project is a multi-phased endeavor aimed at better understanding recruitment failures of both natural stocks and introduced seed of Argopecten irradians. The main objective of this project is to assesss juvenile recruitment (survival to > 4mm) to artificial spat collectors placed in historically productive scallop beds and within close proximity to adult spawner rafts. Spat collectors (2 to 4mm plastic mesh bags) containing monofilament were suspended on 28 to 35-meter floating long lines at 9 locations in the Westport River. A total of 1400 spat collectors were sequentially deployed on 89 long lines from June to August 1993 to determine the timing and peak recruitment at each study site. The 1999 harvest yielded 4000 scallops of varying shell lengths ranging from 4 to 60mm, with an overall mean of 36.9mm. The variability in shell height was related to soaking time of the spat collectors which ranged from 68 to 152 days. The most productive long lines were located in the vicinity of Corey's Island, Horseneck Channel and Canoe Rock. The greatest recruitment was observed at Corey's Island which yielded 1882 scallops averaging 6.1 scallops per collector, with individual long lines harvesting 18.2 scallops per collecor. This study indicates that A. irradians will settle on artificial spat collectors containing monofilament, which may offer an alternative tool for resource management and stock enhancement. Full document at: http://nepis.epa.gov/Exe/ZyNET.exe/200051BD.txt