The warm water outflow at a power station in Northport, NY aggregates Morone saxatilis (Striped Bass) in winter, which creates unnatural angling opportunities. Substantially more Striped Bass were available to anglers in the winter of 1995–1996 than in the winter of 1996–1997. Although Striped Bass were observed within and around the heated effluent of the plume, tracking using ultrasonic transmitters indicated they were not “trapped” in the area by the colder water surrounding the discharge. However, there also was little evidence of a natural forage base. Tag returns from marked Striped Bass over subsequent years suggest that they displayed similar movement patterns to Striped Bass found in Long Island waters during other seasons. Differences in availability of Striped Bass among years may reflect seasonal changes in temperature, cohort abundance, and other factors.