05-21-2011, 01:17 PM
He does mention that they do get a few when they are spawning. His whole argument seems to be that when the trout are adults in the lake that they are not as vulnerable to the pretty birds as some of the other fish as the trout reside deeper. an argument could be made on that alone but his whole thought process is flawed.
If there are 10 fish that go upstream to spawn and in "normal" settings 8 make it. Lets say two are picked off by birds in the stream on the way up to do business. Those 8 make 100 fish each of which of the 8000 there would be 6000 make it back to the lake. Of those 6000 say 3000 make it to adulthood to reside in the lake and wait their turn to go back upstream Birds will pick them off back downstream, and when they live in the shallows before going to deep water, and they will succumb other ways. There will still be 10 to try and make it back upstream as this is "normal".
With the infestation of our feathered friends now only 5 are making it upstream. there are now 5000 babies instead of 8000, which only about 2700 make it back to the lake and only 1300 would make it to adulthood to reside in the lake.
Now instead of 10 trying to make it back upstream there would only be 7 to try and make it back upstream and only 3-4 will make it to do their stuff and so on.
I have no clue what "official" stats would be but any fool should be able to figure out an overrun bird population like that would be extremely harmful to the fish population.
How could an educated person put out such garbage?
(never mind, that opens up another can of worms)
[signature]
If there are 10 fish that go upstream to spawn and in "normal" settings 8 make it. Lets say two are picked off by birds in the stream on the way up to do business. Those 8 make 100 fish each of which of the 8000 there would be 6000 make it back to the lake. Of those 6000 say 3000 make it to adulthood to reside in the lake and wait their turn to go back upstream Birds will pick them off back downstream, and when they live in the shallows before going to deep water, and they will succumb other ways. There will still be 10 to try and make it back upstream as this is "normal".
With the infestation of our feathered friends now only 5 are making it upstream. there are now 5000 babies instead of 8000, which only about 2700 make it back to the lake and only 1300 would make it to adulthood to reside in the lake.
Now instead of 10 trying to make it back upstream there would only be 7 to try and make it back upstream and only 3-4 will make it to do their stuff and so on.
I have no clue what "official" stats would be but any fool should be able to figure out an overrun bird population like that would be extremely harmful to the fish population.
How could an educated person put out such garbage?
(never mind, that opens up another can of worms)
[signature]