Food Items Numerical Method   Occurrence Method  
Number % Number %
Algae        
Clostridium strigosum 164 1.1 36 5.0
Tetraspora gelatinosa 1368 8.9 44 6.1
Anabaena flos-aquae 1354 8.8 50 6.9
Diatoms        
Cyclotella sp 756 4.9 40 5.5
Syndera fasciculata 1824 11.8 72 9.9
Tabellaria fenestrata 408 2.6 30 4.1
Surirella robusta 150 1.0 22 3.0
Nitzchia closterium 1690 10.9 40 5.5
Protozoa        
Vorticella sp 72 0.5 26 3.6
Rotifera        
Trichocerca sp 124 0.8 22 3.0
Insecta        
Dixa sp 44 0.3 28 3.9
Polycentropus sp 72 0.5 24 3.3
Chimarra obscura 204 1.3 22 3.0
Plant materials 7218 46.7 246 33.9
Unidentified mass - - 126 17.4
Table 10: Summary of stomach contents of M. vollenhovenii from Lagos Lagoon.