Food items Numerical method Frequency of occurrence Food items Numerical method
  Number % frequency Number % frequency
Plant material 9,945 64.8 320 90.00
Crustaceans 2,390 15.6 110 31.25
Fish fragment (bones and scales) 789 5.1 90 25.5
Sand grains - - 305 86.7
Unidentified masses - - 290 82.4
Total 15,356 100    
Table 1: Stomach Food Content of Cardiosoma armatum from the Lagos Lagoon mangrove Swamps.