Quote:
Originally Posted by Sundancefisher
There are still people that buy into the old wives tale that fish are transported by birds. The only thing you can say to them is that if it really was true...than all water would have all fish species. It was mentioned before on another thread that perch are transported as eggs on the feathers of ducks...yet perch are not everywhere...even after millions and millions of years and millions and millions of ducks and other birds flying all over Alberta.
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While I'm certainly not denying the existence of the bucket brigade, all of Alberta except the highest peaks of the Cypress Hills and the Rockies were covered by a couple kilometres of glacial ice until around 10,000 years ago. Somehow after the ice retreated our lakes and rivers became populated by all sorts of fish species, in all sorts of waters. That wasn't done by the bucket brigade, so there is some way that fish can move fairly easily from lake to lake, river to river, and can re-populate a landscape that was under kilometres of ice and devoid of fish to be filled with multiple fish species in most waters, within a fairly short period of time. Birds have to play a role, I can't think what else could do it.