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- Hacker News
- Related: Fish were introduced to Crater Lake in the US a little over a hundred years ago, and is generally considered to have been the wrong thing to do.
If you go there, you're free to fish to your heart's content.
by BeetleB - "Someone brought the black bass to this lake from far away, changing the biological distribution of the lake."by EvanAnderson
- Can I offer some further explanations?
* Accidental human seeding. Rather than bringing a full grown fish up to a lake, is it possible that the eggs could have been in waterskins/containers and when the humans refilled them, the eggs washed out?
* What about eels? Eels can travel across land in damp conditions (and Norway is damp much of the time). Could they take other fish eggs with them?
by nephihaha - An alternative vector: "cloud seeding" (https://www.theguardian.com/science/2004/sep/09/science.rese...)
Charles Fort collected numerous data for his famous "The Book of the Damned" https://en.wikipedia.org/wiki/The_Book_of_the_Damned
by fractallyte - hmmm, I have seen big fish in much bigger birds claws, and have seen even bigger birds dive bombing other birds to force them to drop there fish plus a bird can get a fish over ANY lake in minuits, vs an all day random fish carrying hike? so to recap, I have seen many birds with fish, but zero human fish hikersby metalman
- by moebrowne
- Somewhat related, after desert rains you can often see fairy shrimp (think sea monkeys you might have had as a kid) swimming around in the isolated pools that form. I looked this up after wondering how the heck these water creatures could survive dozens of miles from the nearest permanent water source.
The answer is that their eggs are extremely lightweight, so much so that wind can carry them long distances. Their entire life cycle is extremely accelerated. Once water soaks the eggs the critters can hatch, develop, and lay new eggs in a matter of days. The newly laid eggs have a tiny chance of reaching a new seasonal pool area.
by rurp - > That is the only possible explanation for how fish could have populated isolated mountain lakes
isn't that a common question?
"How do fish appear in landlocked lakes/ponds/etc"?
After digging a pond and letting it fill with rainwater/groundwater, fish appear. I don't think its because people carried them there.
(don't really know the common answer though)
by m463