Tough to know for sure depending on what kinda structure u have in the pond. Average growth in only 6” in the first year so ud prob be seeing the previous yrs spawn…With bass and other cats in there theyd have a tough
way to go. Im sure some are still making it even in the 1/4 acre pond. Some yrs are better than others also… for example, ive fished the same area for pike for 20+ yrs… some yrs i find 3-6” pike everywhere… other years i dont see even 1. Are “new ones” still there. Probably… just not in abundance like other years.