Diets showed considerable temporal variation with benthic non-filamentous
algae representing 86% of the total food consumed during February (wet) and later
reduced to 2% of the diet in September (dry) (Fig. 3). The filamentous algal component
of the diet was almost absent in February yet had increased to 32% in September
(Fig. 3). Detritus in the diet of N. erebi increased from 18% in February to 66% in
May and September (Fig. 3).Schoener’s Dietary Overlap confirmed temporal feeding
variability of N. erebi captured in the Moonie River with dietary differences between
February and May (T = 0.47), and February and September (T = 0.16) sampling
periods. N. erebi diets showed some similarity between May and September
samples (T = 0.68).