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Table 2 Biometric data and gonadosomatic index of S. herzbergii caught in São Marcos Bay, Maranhão, Brazil

From: A histopathological and biometric comparison between catfish (Pisces, Ariidae) from a harbor and a protected area, Brazil

Sites Gender L t(cm) L f(cm) W t(g) W g(g) GSI
Reference (A1) Female 29.85 ± 2.72* 26.29 ± 2.98* 283.45 ± 57.34* 7.936 ± 0.361 2.68 ± 0.26*
  Male 28.85 ± 2.81* 27.29 ± 2.21* 281.25 ± 37.54* 5.434 ± 0.251 1.58 ± 0.12*
Harbor (A2) Female 20.88 ± 3.22 19.45 ± 2.74 108.50 ± 77.90 0.629 ± 0.447 0.08 ± 0.063
  Male 18.28 ± 8.72 16.25 ± 2.92 105.31 ± 55.60 0.129 ± 0.047 0.02 ± 0.013
  1. *Indicates significant difference between sites (P < 0.05). Total number of catfish = 60. Number of female catfish in: A1 = 15; A2 = 15. Number of male catfish in: A1 = 15; A2 = 15. Biometric data: Lt (total length); Lf (fork length); Wg (gonad weight), and GSI (gonadosomatic index). cm (centimeter); g (gram).