Comments by "" (@thomasneal9291) on "VICE"
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"Either spread far and wide by availability of man made food sources where before there had been no natural source of food for the sharks, but usually heavily concentrated in one area where fishing is popular so they can scavenge off of our hard work! "
no.
what has happened is that the sharks were always there, always taking a certain portion of food fishes. It's just that with SOOO much less food fishes (most populations are down by 80% or more!), YOU notice the sharks taking what is left much more than before.
it's simple math.
say you start off with 5 sharks, 5 fisherman, and 200 fish. say the fish reproduce at 5 fish per year.
Say the sharks take one fish each, and the fisherman take 2 each, per year.
at the end of the first year, there are then 190 fish.
at first, you don't notice the sharks taking 5 fish out of 200, just like you don't notice that there are overall 10 fewer fish than there were in the previous year, since likely it would take you about the same amount of time to catch those 2 fish as it did for you the previous year, and the chances a shark would try to take one of the specific fish you were trying to catch is remote (5/190)
but after 10 years, now there are only 100 fish, and not only does it take longer to catch them, but there is a much higher chance now that a shark will try and take the same fish as you.
another 7 years, now only 30 fish left, and you're nearly in a one on one competition with the sharks.
blaming the sharks? not the issue. The sharks have not changed. You've just become more aware of them because of the impact YOU have had.
it's that simple.
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