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).