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Family: | Leuciscidae Minnows | ||||||||||
Max. length (Lmax): | cm | ||||||||||
L infinity (Linf): | = cm | ||||||||||
K: |
/year
Ø' =
Median Ø' value with related Linf. and K. |
Growth & mortality data |
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to: | years Estimated from Linf and K. | ||||||||||
Natural mortality (M): |
s.e.
-
/year
Estimated from Linf., K and annual mean temp. = °C |
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Life span (approx.): | years Estimated from Linf., K and to. Max. age & size data | ||||||||||
Generation time: | years Estimated from Lopt, Linf., K and to. | ||||||||||
Age at first maturity (tm): | years Estimated from Lm, Linf., K and to. | ||||||||||
L maturity (Lm): |
s.e.
-
cm
Estimated from Linf. Maturity data |
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L max. yield (Lopt): |
s.e.
-
cm
|
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Length-weight: |
cm
=>
(wet weight)
W = * L ^ |
Length-weight data |
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Nitrogen & protein: |
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Reproductive guild: | nonguarders: open water/substratum egg scatterers Reproduction | ||||||||||
Fecundity: | 11,379 [ 563-230,000 ] Estimated as geometric mean. Fecundity | ||||||||||
Relative Yield per Recruit (Y'/R): |
Estimate Y'/R from M/K, Lc/Linf and E.
Lc= cm E= /year Emsy /year Eopt /year Fmsy /year Fopt /year |
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Exploitation: |
Z= F= E= |
Estimate Z, F, E from Lc, Lmean, Linf, K, M
Lc = cm Lmean = cm |
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Resilience / productivity: |
Vulnerable to extinction if decline in biomass or numbers exceeds threshold over the longer of 10 years or 3 generations. |
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Intrinsic rate of increase (rm): | /year |
Lr = cm
Estimated from Fmsy at Lc = length of recruitment (Lr). |
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Main food: | mainly animals (troph. 2.8 and up) | ||||||||||
Trophic level: | 2.5 +/- s.e. 0.19 Estimated from diet data. Diet | ||||||||||
Food consumption (Q/B): | times the body weight per year |
Enter Winf, temperature, aspect ratio (A), and food type to estimate Q/B Winf = g Temp. = °C A =
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Estimate growth | |||||||||||
Note: The estimates are derived from default values taken from FishBase and will thus not be appropriate for every population. You can change these values and recalculate the life history parameters.
Max. length is null. Enter initial value as 1. |
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Species summary |