Food items Numerical method Frequency of occurrence
Number % frequency Number % frequency
Plant materials 8,786 39.5 302 78.03
crustaceans 2,857 12.9 95 25.00
Fish fragments (bones and scales) 750 3.4 83 21.44
Sand grains - - 287 74.16
Unidentified masses - - 245 63.31
Total 22,225 100  
       
Table 4: Stomach Food Content of Cardiosoma guanhumi from the Lagos Lagoon mangrove swamps (February- July, 2012).