I would think that the LakeMaster mapping surveyors take note of any fish attractor buoys while they physically survey a lake for contour depths ... and those fish attractor buoys would then be included during the data entry for making LakeMaster map products ...
In my state fish attractor buoys denote artificial structure placed by Fish and Wildlife ...
I would assume most other states have similar tasks performed by their state Fisheries department ...
Rickie