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Fish growth
Growth of individual organisms within a population is…
Fish growth
Growth of individual organisms within a population is generally characterized by an expression which is representative of individual growth of some ‘average’ animal in the population.
Important of growth
Growth affects yield (i.e., biomass); commercial harvest
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Quantifying growth
Short term
- Absolute increase
- Relative rate of increase
- Instantaneous rate of increase
Quantifying growth
Long term
-Timeline
1.Early life- characterized by rapid growth
2.Late life –slowing growth
What effect growth?
Temperature-affects assimilation, metabolism, and consumption
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Age, size, maturity, sex – growth decreases with age
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Models of growth
- Von Bertalanffy equation, in terms of length
Lt = L∞ (1 – exp [-K (t –t0)])
- Von Bertalanffy equation, in terms of length
Lt = L∞ (1 – exp [-K (t –t0)])
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