Growth parameters for Ictalurus punctatus
 
Maximum Length 132cm TL
n = 16
Note that studies where Loo is very different (+/- 1/3) from Lmax are doubtful.
Lm vs Linf graph [n = 1]
Reproductive graph [n = 1]
M vs K graph [n = 4]
M vs Linf graph [n = 4]
Longevity vs 3/K graph [n = 7]
ø = 2.91
L inf = 63.9 cm TL
K = 0.2
Median record no. 9
120747Ref. 120747
Loo
(cm)
Length Type K
(1/y)
t0
(years)
Sex M
(1/y)
Temp° C Lm Ø' Country Locality Questionable Captive
37.6 FL 0.400 0.02 2.75 USA Three tributaries of the Chesapeake Bay, Virginia Yes No
40.0 FL 0.540 0.27 2.94 USA York System, Virginia Yes No
45.2 FL 0.230 -0.39 2.67 USA James River, Virginia Yes No
45.7 FL 0.120 -1.96 2.40 USA Rappahannock River, Virginia Yes No
51.4 TL 0.163 -0.62 2.63 USA Ft. Loudoun Lake Yes No
54.4 TL 0.227 -0.62 2.83 USA Chickamauga Lake Yes No
54.7 TL 0.271 -0.88 F 2.91 USA Lake Wilson, Alabama No No
56.4 TL 0.202 -0.50 0.21 2.81 USA Monongahela River, West Virginia Yes No
63.9 TL 0.201 -0.82 M 2.91 USA Lake Wilson, Alabama Yes No
65.1 TL 0.170 -1.68 2.86 USA Potomac River, West Virginia Yes No
75.9 TL 0.135 -0.62 2.89 USA Kentucky Lake No No
83.4 TL 0.056 -1.92 2.59 St. Laurent River No No
105.0 SL 0.125 0.18 3.14 North America No No
111.5 TL 0.066 -0.89 0.21 2.91 USA James River No No
119.0 TL 0.060 8.0 36.0 2.93 USA Mississippi River, Lansing, Iowa Yes No
138.6 TL 0.111 0.16 3.33 Canada Ontario No No
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