Natural Pond Questions! -increase depth, mosquito control

I have a natural pond on my Wyoming property that sits near a creek (it may be part of the old creek channel). The pond is only estimated to be about 3-5 feet deep, maybe 5000 sq ft, and produces an insane number of mosquitoes in the spring.

Some initial thoughts to improve the pond quality are to run a solar pump, continuously (or periodically, depending on how quickly it fills) pumping water from the creek into the pond to keep it closer to a bank-full level.

Along with that, we want to introduce fish to help with mosquito control. Plains killifish were the first to come to mind.

I would love to hear thoughts on these ideas, along with whatever suggestion you guys have to improve on this awesome little pond that we have! Thanks

In Australia I have dams that size.
I have fish that are suitable for the dams and vegetation around the edges to encourage birds and frogs etc.
Have you thought about that style of idea?

From backyard ponds in Wyoming
"wer oxygen levels below that required by fish.
“A pond in crisis smells bad, looks bad, and shows no evidence of management,” says Nye. “So much can be controlled by breaking the aging process cycle.
I use aeration to increase oxygen levels and speed up organic matter breakdown.
 In addition, I use specific bacteria for specific tasks in ponds.
I use them all year long in combination with an aerator.”"

iNaturalist lists 15 types of minnows as occurring in Wyoming. This list ranks them from most common to least common.

Creek Chub, Semotilus atromaculatus

Longnose Dace, Rhinichthys cataractae

Fathead Minnow, Pimephales promelas, does particularly well in ponds.

Redside Shiner, Richardsonius balteatus

Utah Chub, Gila atraria, live near Grand Teton national park. Like ponds.

Sand Shiner, Notropis stramineus

Central Stoneroller, Campostoma anomalum

Common Shiner, Luxilus cornutus

Flathead Chub, Platygobio gracilis

Speckled Dace, Rhinichthys osculus

Brassy Minnow, Hybognathus hankinsoni

Lake Chub, Couesius plumbeus

Red Shiner, Cyprinella lutrensis

Roundtail Chub, Gila robusta

Old World Minnows, Subfamily Leuciscinae

A population of killifish live east and north of Cheyenne.
Green sword-tails live near Jackson.

Also, bats, swallows, and dragonflies devour lots of mosquitoes.

UnI'd start introducing all sorts of wildlife. Visit all ponds and lakes you know around you. If you know which are thé worst invaders, don't add those. Other plants will oxyganize the mosquito predators which hide in the plants you bring.
You'll be boosting microbial and algaelife as well with every bucket you empty.
If it was part of an old streambed as you say it can have fish in it already. Most people love koi. Best of them is their insane coloring gets thèm eaten quickly by birds. They'll eat all your plants and they shit as much as a small dog daily. They'll start upturning the mud. Making for ysmelly water full of fish poo in which plants hardly photosynthesize.Carp same thing.
No wonder every pond shop sells them! Keep those suckers coming back for their sick pond.

Bigger predator fish can keep their numbers down.

I don't know all the nice fishes Joseph is proposing. I'm in Europe, i've got fish in my small pond which eat plants from may-ish only. I never feed them. Water's clean since ten years.
I saw that Sepp Holzer dumped dead trees in his ponds to provide young fish a hiding place in between the finer branches.