Originally posted by robtcorl
Stocked by fish rain?
Can it rain fish? | Science Questions with Surprising Answers
I agree, it probably was stocked by a person, but stocking only green sunfish doesn't seem likely.
I'm sure they're prolific, and that's why it's the only species you've been catching, but I'm betting there's more of a variety.
If its feeder is a small creek there's a good chance they came in during wet times. Even small creeks have holes of deeper water, enough to sustain fish.
I have heard over the years, that sometimes people will stock their small pond with small fish like sunfish, then on occasion sunfish will multiply until the pond cannot support that many. Then they will bring in a predator....say a few Largemouth Bass, which may eat their way through the pond, than the Bass will start to cannibalize each other.
So it can become a case of where do you go next ? I don't know ff there is a formula that involves factors like type/adult size fish numbers, area of pond, etc.
When I was in my early 20's I did consider setting up a small commercial fish operation on the family grain farm. This was in the early '70's , no internet, but there were a few books on fish farming at the local library. My idea was to get Rainbow trout fingerlings, dump them in the dugouts ( farm ponds) in early May, supplement the natural food (insects, etc.) with commercial fish food and the harvest them early October, before winter came and then try to market trout fillets at local stores.
I didn't have the bucks....costs would include excavating dugouts, filling them with water, possibly having to seal the newly excavated ponds, buying fingerlings, commercial fish food, etc.. Too expensive for a young guy who was always flat broke just paying way through school.