Fig. 3

Standard ellipse areas (‰) and convex hulls of the predatory fish species in the Pangani estuarine zones. Standard ellipse areas (‰) are corrected for small sample sizes denoted as SEAc in solid line cycles that comprised about 40% of isotopic data, presented as ○ (open points) for Carangoides chrysophrys and ∆ open (triangle points) for Epinephelus malabaricus. Convex hull areas (TA) presented as dotted lines indicate the total niche space occupied by each species, The letters, a, b and c indicate upper, middle and lower estuarine zones respectively