P.S. I was just thinking about fish vision in the discussion above.

While predators certainly have a preferred size of forage, how good are they at measuring?

If I see four BG on video swimming in the same direction, I can easily pick out the largest BG and the smallest BG. (If there is much size differentiation.)

However, how does a bass measure the size of a solitary BG? A 2" BG that is two feet away would look awfully similar to me compared to a 4" BG that is four feet away. Especially in lower light conditions when bass like to hunt.

I would guess bass were pretty opportunistic and would take a BG over a large size variance if that BG wandered into the parameters of a "highly successful hunt" for the bass.

Further, it is difficult to gauge the RW of a BG when viewed only in the profile aspect. Likewise, if you only view a BG from straight in front, it is difficult to accurately assess its length.

Good thing bass are MUCH smarter than I am at catching BG! grin