Table 3 Summary statistics (mean ± SE) of δ13C, δ15N, and C/N in the different size groups of black amur bream and potential prey sources in the sampling site.
Group/taxon | Code | N | δ 13C (‰) | δ 15N (‰) | C/N |
|---|---|---|---|---|---|
Small juvenile | Small juvenile | 11 | − 24.67 ± 1.75 | 11.60 ± 2.75 | – |
Large juvenile | Large juvenile | 12 | − 25.53 ± 1.43 | 12.54 ± 2.44 | – |
Sub-adult | Sub-adult | 15 | − 26.10 ± 1.52 | 13.53 ± 2.69 | – |
Adult | Adult | 8 | − 25.58 ± 1.33 | 14.57 ± 3.09 | – |
Zooplankton | Zooplankton | 2 | − 30.25 ± 1.07 | 9.95 ± 2.08 | 6.11 ± 0.66 |
Phytoplankton | Phytoplankton | 2 | − 27.94 ± 0.24 | 8.21 ± 1.13 | 8.40 ± 1.86 |
Riparian C4 plants | C4_P | 4 | − 13.29 ± 0.21 | 4.06 ± 1.44 | 63.89 ± 10.35 |
Potamogeton sp. | Psp | 6 | − 25.29 ± 3.26 | 7.45 ± 2.43 | 10.46 ± 1.26 |
Macrobrachium nipponense | Mni | 9 | − 26.97 ± 0.66 | 15.95 ± 1.32 | 3.30 ± 0.07 |
Anodonta woodiana | Awo | 2 | − 24.72 ± 0.65 | 6.46 ± 0.04 | 3.84 ± 0.06 |
Limnoperna fortunei | Lfo | 1 | − 26.53 | 4.96 | 4.65 |
Semisulcospira cancellata | Sca | 1 | − 24.16 | 9.51 | 3.91 |
Corbicula fluminea | Cfl | 4 | − 30.27 ± 0.26 | 11.99 ± 0.31 | 4.65 ± 0.43 |
Bellamya sp. | Bsp | 4 | − 22.28 ± 0.34 | 4.42 ± 1.02 | 4.14 ± 0.27 |
Benthic detritus | Bde | 2 | − 26.11 ± 1.20 | 7.08 ± 1.50 | 12.57 ± 4.50 |
Sediment | Sediment | 3 | − 25.23 ± 0.39 | 5.85 ± 0.23 | 10.47 ± 1.23 |
