Growth parameters for Polyodon spathula
 
Maximum Length 221cm TL
n = 6
Note that studies where Loo is very different (+/- 1/3) from Lmax are doubtful.
M vs K graph [n = 3]
M vs Linf graph [n = 3]
Longevity vs 3/K graph [n = 1]
ø = 3.49
L inf = 110.0 cm FL
K = 0.3
Median record no. 4
5734Ref. 5734
Loo
(cm)
Length Type K
(1/y)
t0
(years)
Sex M
(1/y)
Temp° C Lm Ø' Country Locality Questionable Captive
84.9 FL 0.133 M 14.0 2.98 USA Missouri River, South Dakota-Nebraska Yes No
90.3 FL 0.173 F 14.0 3.15 USA Missouri River, South Dakota-Nebraska Yes No
103.0 FL 0.303 -0.73 0.65 20.0 3.51 USA Lake Henderson, Louisiana Yes No
110.0 FL 0.254 -1.02 0.57 20.0 3.49 USA Atchafalaya River, Louisiana Yes No
113.0 TL 0.581 20.0 3.87 USA Mississipi River Yes No
120.0 FL 0.276 -0.71 0.30 3.60 USA Lake Pontchartrain, Louisiana Yes No
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