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haha
What? Don't be ridiculous. There were different pars of Da Flud with different saltiness. The fishes swimmed into those parts to hang out until Da Flud was over. Duh.
That's pretty awesome, except for the last part about the waters 'diffusing' into each other. The real answer for this is a density stratified water column, wherein the saltiest water was at the bottom and the fresh water was at the top. This is why the higher elevation lakes are all fresh.
So how did it work out when the evenly distributed layered water went down again? More over, what about fresh water organisms that would stay at the bottom of what is normally fresh water?
It worked just as Skaloop said, wherein the fresh water at the top of the water column filled in depressions on the continental land mass, with the excess draining into the oceanic basins. This is how rivers formed, no doubt.
Well, tall mountains no doubt spanned several salinity strata and protruded into the base of the fresh water stratum, providing bottom-dwelling organisms with a substrate upon which they could live.
1. That would salt all the land with the evaporated sea water, causing hostile growing conditions.
You should look at the post above. ^ Anyway, how would you do without light for 40 days? (no synthetic light) And besides that, many would die from pressure, or (because their air sacks are adjusted to) float into the fresh water zone...
As sea level dropped, the saline water would have run off, then the fresh water came into contact with the cratonic surface, where it too ran off (save the part that filled up the lakes). The only water left to evaporate on the continents was fresh.
They wouldn't have to move very fast, just fast enough to keep up with a rising sea.
Corrosion of what, by what? What type of mineral deposits would you expect to see? Where? Why?
They need not. The plants on earth were being consumed by herbivores. This means that the seeds of the plants were in the guts of the animals that died in the flood. When animals die, they often fill with gas, which makes them float. All that would be necessary for the seeds to survive is for the decomposition of the animal's carcass to take longer than the duration of the flood event. The plants grow from the ingested seeds where the animals were deposited after the flood.
Why would there be craters? Are there craters in deserts today? When the sand was 'carried away', it had to be deposited somewhere, right? Those would be the sand dunes of today.
There wasn't any ruined topsoil. As sea level rose, the fresh water at the top of the water column came into contact with continental soils first, such that the soils were saturated with fresh water. Once the flood receded, the fresh water in the soil was evacuated via evaporation and capillary forces, providing a well-preserved, dry soil profile.
Luckily none of these 'issues' that you've pointed out are actually a problem. YAY!
Probably not too well, but then, I'm not a fish. Also, you make the assumption that light would not penetrate very far into the water column. If there was very low turbidity, photic attenuation could be quite low.
I don't understand why this would be the case. Could you explain? Sorry, I'm not a ichthyologist, I am but a simple geologist.
