I've always wondered this, over the years, what fish are alive and well in the sewer systems, even if they are not breeding. At least a few times I can think of, a live fish has accidentally flipped into the drain of my fish room sink, not to mention invertebrates and plant clippings.
So I ask you, depending on the climate, lets assume a temperate North American climate, could large numbers (relatively speaking) of tropical fish be living in sewer systems across North America? Feeding on whatever they come across? Perhaps kept alive by hot water pipes, broken or running parallel to sewer channels, or in subterranean ancient (early turn of the century) aquifers. Perhaps long forgotten subway tunnels, flooded and kept warm by a bustling metropolis above?
I've always wondered this. I'm almost certain this happens in the lower states, but I cant be sure.
Is there something that would prevent the survival of at least the hardiest of fish, perhaps labyrinth breathers or the like?
Do the sewers all lead to instant death? Or is there a world beneath us, in some places teeming with life that never meant to be there in the first place?
Do they breed? Have they mutated? Could a Gourami accidentally flushed end up living out a full life cycle near a warm water break in a subterranean world, eating small insects as they fall from the roof of a flooded maintenance shaft, light rays penetrating from a manhole above, causing a discarded piece of Java fern to take root in the broken brick wall?
Thoughts?
So I ask you, depending on the climate, lets assume a temperate North American climate, could large numbers (relatively speaking) of tropical fish be living in sewer systems across North America? Feeding on whatever they come across? Perhaps kept alive by hot water pipes, broken or running parallel to sewer channels, or in subterranean ancient (early turn of the century) aquifers. Perhaps long forgotten subway tunnels, flooded and kept warm by a bustling metropolis above?
I've always wondered this. I'm almost certain this happens in the lower states, but I cant be sure.
Is there something that would prevent the survival of at least the hardiest of fish, perhaps labyrinth breathers or the like?
Do the sewers all lead to instant death? Or is there a world beneath us, in some places teeming with life that never meant to be there in the first place?
Do they breed? Have they mutated? Could a Gourami accidentally flushed end up living out a full life cycle near a warm water break in a subterranean world, eating small insects as they fall from the roof of a flooded maintenance shaft, light rays penetrating from a manhole above, causing a discarded piece of Java fern to take root in the broken brick wall?
Thoughts?
