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Probability
of survival through the egg and larval stages
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are low
(99.9% dies)
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The
number of individuals that survives the critical first 5
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months
(0-group) corresponds with numbers that reach
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age
3 years.
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Total
numbers of 3 year olds define the year-class
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strength.
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However;
processes important for larval survival
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and growth
may differ between ecosystems
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