How long does it take for a bass grow to trophy size? What's the expected annual mortality of the first bass stockers in a new pond? I don't know. I could guess, but my guesses are no better than anyone else's and not half as good as someone's experience (and there's a LOT of big bass experience at this forum - see the above poster).

But I can do Math. Yearly survival rate = (1 - annual mortality) to the Nth power, where N = year number. So take your best numbers or make your best guesses, and you can get an rough idea what % of fish live how long:

40% annual mortality:
4th year survival = 13.0%
5th year survival = 7.8%
6th year survival = 4.7%
7th year survival = 2.8%
8th year survival = 1.7%
9th year survival = 1.0%
10th year survival = 0.6%

30% annual mortality:
4th year survival = 24.0%
5th year survival = 16.8%
6th year survival = 11.8%
7th year survival = 8.2%
8th year survival = 5.8%
9th year survival = 4.0%
10th year survival = 2.8%

20% annual mortality:
4th year survival = 40.1%
5th year survival = 32.8%
6th year survival = 26.2%
7th year survival = 20.9%
8th year survival = 16.8%
9th year survival = 13.4%
10th year survival = 10.7%

10% annual mortality:
4th year survival = 65.6%
5th year survival = 59.0%
6th year survival = 53.1%
7th year survival = 47.8%
8th year survival = 43.0%
9th year survival = 38.7%
10th year survival = 34.9%

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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