What would happen?

[davedave]

I often get random thoughts whilst fishing, most I forget by the time i'm home but for some reason I remembered this one:

 

What would happen if you dug a large hole in the ground, filled it with water and left it for ten years, doing nothing than say once a year cutting some of the overgrowth and weed out.

 

So if you came back after this ten years, would there be fish in there? I know fish can get into places from natural things like birds feet taking eggs from one water to another. But just say it doesn't flood and a load of fish dont wash into it, and that some plonker doesn't chuck in a bucket of fish, would they eventually get in there naturally or would it just be full of frogs and newts?

 

Natural fish containing lakes must have formed somehow, although i'd guess they'd get fish from flooding?

 

Any thoughts?

 

Cheers, dave

[chavender]

nature will find a way ,either by natural or un-natural means

[Ken L]

10 years is a bit short for natural means unless it's on a floodplain. Most of our lakes have been in existence since the last ice age.

[Rich_]

An old stone quarry not far from us which was abandoned during the 1980s and soon filled with water, is full of perch now and has been for some years, as well as some minnows despite there being no obvious streams running into it.

[wotnobivvy]

Put in by the Perch Fairy one dark night ;)

[Andy Macfarlane]

Timescale is a wonderful thing. The eggs Vs. webbed feet debate has been around as long as I can remember and nobody has ever really answered it to any real degree of satisfaction. It's one of those things anglers take for granted however, I do know that sticklebacks are very good at getting about in a very short space of time. I'd hazard they're generally the first species to get in a water but I just don't see any perch fairies or poly-bag stocking specialists moving stickles.

[RUDD]

You would probably find some Goldfish, Orf or Koi and a Terrapin or two that somebodys did not want anymore!!!!

A local nature reserve has never been stocked yet now supports Rudd, Roach and Perch - there is a small pond a few miles away that feeds the reserve some water and this contains Rudd and Roach - I suspect fry washed down the stream at some point in time.