The stable nitrogen isotopes (δ15N) and trophic level (TL) of organisms (mean ± SD, n = 3).
| Species | Common name | Diet compositionsa | δ15N‰ mean ± SD | TL |
|---|---|---|---|---|
| Phytoplankton | — | — | 5.05 ± 0.72 | 1.5 |
| Zooplankton | — | — | 5.09 ± 0.42 | 1.5 |
| Invertebrates | ||||
| Exopalaemon modestus | White shrimp | Zooplankton phytodetritus | 12.24 ± 0.04 | 3.4 |
| Macrobrachium nipponense | Freshwater shrimp | Meiobenthos phytodetritus | 10.75 ± 0.73 | 3.0 |
| Fish | ||||
| Plankivores | ||||
| Hypophthalmichthys molitrix | Sliver carp | Microcystis (>90%) | 13.27 ± 0.02 | 3.7 |
| Aristichthys nobilis | Terch | Microcystis (>90%) | 13.35 ± 0.3 | 3.7 |
| Omnivores | ||||
| Coilia ectenes taihuensis | Anchovy | Zooplankton, phytoplankton | 9.14 ± 0.05 | 2.6 |
| Hemicculter leuciclus | Black carp | Benthic animals | 12.12 ± 0.84 | 3.4 |
| Cyprinus carpio | Common carp | Macrophytes (70%), benthic animals (30%) | 13.67 ± 0.14 | 3.8 |
| Hemisalanx prognathus | Whitebait | Zooplankton (copepod, 70%; cladocera, 30%) | 11.25 ± 0.43 | 3.1 |
a
Diet compositions from Liu.37