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Table 4 Averages, standard deviation (SD) of δ13C and δ15N ratios for all consumer taxa at the midstream site (Huanghua) in Three Gorges Reservoir. Data were pooled from the wet and dry periods between 2004 and 2005

From: Initial response of fish trophic niche to hydrological alteration in the upstream of Three Gorges Dam

Species δ13C δ15N Trophic level
Ctenopharyngodon idellus −23.3 ± 0.4 7.2 ± 0.3 2.0 ± 0.1
Megalobrama amblycephala −23.3 ± 0.3 8.8 ± 0.4 2.0 ± 0.1
Hypophthalmichthys molitrix −21.7 ± 0.6 7.7 ± 0.3 1.8 ± 0.1
Cyprinus carpio −22.1 ± 0.6 8.1 ± 0.6 1.9 ± 0.2
Carassius auratus −21.3 ± 0.8 10.4 ± 0.4 2.7 ± 0.1
Coreius guichenoti −21.5 ± 0.5 9.5 ± 0.3 2.4 ± 0.1
Hemibarbus maculatus −22.5 ± 0.7 9.8 ± 0.3 2.5 ± 0.1
Pelteobagrus fulvidraco −21.2 ± 1.2 10.6 ± 1.4 2.8 ± 0.4
Distoechodon tumirostris −22.0 ± 0.2 11.6 ± 0.3 3.1 ± 0.2
Hemiculterella sauvagei −22.5 ± 0.6 9.1 ± 0.3 2.2 ± 0.1
Silurus asotus −21.4 ± 0.6 12.7 ± 0.9 3.4 ± 0.2
Siniperca chuatsi −23.5 ± 0.9 12.7 ± 0.7 3.4 ± 0.2