Is aeration necessary with a spillway-syphon system installed?

The one and a half acre pond is one year old – 14 ft deepest point.

The spillway-syphon system drains the oxygen depleted water, and sludge, from the bottom as rainfall fills the pond to drainage level.

The pond is located in N.E. Texas and the area has an average annual rainfall of 44 inches, currently 7.5 inches ahead of schedule for year to date.

I am currently investigating aeration systems.
If aeration is needed, would it be continuous operation – or as needed during the summer months?

Your help appreciated.
Thanks in advance,
george