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Family: | Carcharhinidae Requiem sharks | ||||||||||
L infinity (Linf): | = | ||||||||||
L maturity (Lm): |
s.e.
-
cm
Estimated from Linf. Maturity data |
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L max. yield (Lopt): |
s.e.
-
cm
Estimated from Linf. |
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K: |
Warning: Division by zero in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2370 Warning: Division by zero in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2375 Warning: A non-numeric value encountered in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2375 /year Lm = cm tm = years Estimated from Linf, Lm, to and tm. |
Growth & mortality data |
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to: |
Warning: number_format() expects parameter 1 to be float, string given in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2422 years Estimated from Linf and K. |
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Natural mortality (M): |
Warning: log10() expects parameter 1 to be float, string given in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2447 Warning: log10() expects parameter 1 to be float, string given in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2458 Warning: log10() expects parameter 1 to be float, string given in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2459 s.e. - /year Estimated from Linf., K and annual mean temp. = °C |
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Life span (approx.): |
Warning: Division by zero in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2520 Warning: Division by zero in /var/www/html/popdyn/KeyfactsSummary_3.php on line 2521 s.e. - years Estimated from Linf., K and to. Max. age & size data |
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Generation time: | Estimated from Lopt, Linf., K and to. | ||||||||||
Age at first maturity (tm): | s.e. - years Estimated from Lm, Linf., K and to. | ||||||||||
Length-weight: |
cm
=>
(wet weight)
W = * L ^ |
Length-weight data |
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Nitrogen & protein: |
|
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Reproductive guild: | bearers: internal live bearers Reproduction | ||||||||||
Fecundity: | 8 [4-17] Estimated as geometric mean. Spawning | ||||||||||
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): |
Warning: Division by zero in /var/www/html/popdyn/KeyfactsSummary_3.php on line 3173 /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: | 4.3 +/- s.e. 0.50 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. |
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Species summary |