Table 1.
Sequence numbers of fish detected by eDNA and caught by ground cages at 10 sites in Beijing.
| Order | Species | eDNA (sequence) | Traditional (Number) | ||||
|---|---|---|---|---|---|---|---|
| Chaobai | Beiyun | Total | Chaobai | Beiyun | Total | ||
| Beloniformes | Oryzias latipes | 1073 | 3008 | 4081 | 0 | 0 | 0 |
| Cypriniformes | Abbottina rivularis | 924 | 2301 | 3225 | 19 | 6 | 25 |
| Acheilognathus macropterus | 46 | 874 | 920 | 4 | 2 | 6 | |
| Carassius auratus | 26,614 | 165,549 | 192,163 | 0 | 0 | 0 | |
| Chanodichthys erythropterus | 84 | 39 | 123 | 3 | 0 | 3 | |
| Cobitis melanoleuca | 1726 | 0 | 1726 | 0 | 0 | 0 | |
| Cyprinus carpio | 9189 | 3151 | 12,340 | 0 | 0 | 0 | |
| Gnathopogon strigatus | 140 | 0 | 140 | 0 | 0 | 0 | |
| Hypophthalmichthys molitrix | 640 | 0 | 640 | 0 | 0 | 0 | |
| Squalidus wolterstorffi | 0 | 0 | 0 | 5 | 0 | 5 | |
| Hypophthalmichthys nobilis | 21,193 | 357 | 21,550 | 0 | 0 | 0 | |
| Misgurnus anguillicaudatus | 762 | 42,882 | 43,644 | 4 | 15 | 19 | |
| Cobitis granoci | 1393 | 2415 | 3808 | 1 | 0 | 1 | |
| Saurogobio dabryi | 0 | 0 | 0 | 4 | 0 | 0 | |
| Opsariichthys uncirostris | 2440 | 39 | 2479 | 1 | 0 | 1 | |
| Paramisgurnus dabryanus | 3399 | 643 | 4042 | 99 | 3 | 102 | |
| Pseudorasbora parva | 5265 | 42,561 | 47,826 | 36 | 158 | 194 | |
| Rhodeus ocellatus | 758 | 14,452 | 15,210 | 1 | 17 | 18 | |
| Rhynchocypris lagowskii | 24,493 | 177 | 24,670 | 11 | 0 | 11 | |
| Sarcocheilichthys soldatovi | 2890 | 393 | 3283 | 5 | 0 | 5 | |
| Ctenopharyngodon idella | 299 | 332 | 631 | 0 | 0 | 0 | |
| Zacco platypus | 31,034 | 1243 | 32,277 | 0 | 0 | 0 | |
| Hemiculter leucisculus | 618 | 1145 | 1763 | 289 | 0 | 289 | |
| Perciformes | Micropterus salmoides | 0 | 219 | 219 | 0 | 0 | 0 |
| Rhinogobius cliffordpopei | 0 | 176 | 176 | 0 | 0 | 0 | |
| Channa argus | 4962 | 20,092 | 25,054 | 2 | 0 | 2 | |
| Lateolabrax maculatus | 0 | 32 | 32 | 0 | 0 | 0 | |
| Macropodus chinensis | 366 | 505 | 871 | 5 | 0 | 5 | |
| Micropercops swinhonis | 7263 | 61,546 | 68,809 | 9 | 0 | 9 | |
| Odontobutis potamophila | 90 | 5620 | 5710 | 0 | 8 | 0 | |
| Rhinogobius brunneus | 1365 | 424 | 1789 | 3 | 1 | 4 | |
| Rhinogobius similis | 3012 | 1037 | 4049 | 0 | 0 | 0 | |
| Siniperca chuatsi | 770 | 204 | 2773 | 0 | 0 | 0 | |
| Salmoniformes | Hypomesus olidus | 260 | 0 | 260 | 0 | 0 | 0 |
| Oncorhynchus mykiss | 1647 | 0 | 1647 | 0 | 0 | 0 | |
| Siluriformes | Ictalurus punctatus | 0 | 85 | 85 | 0 | 0 | 0 |
| Silurus asotus | 6842 | 514 | 7356 | 0 | 0 | 0 | |
| Tachysurus fulvidraco | 3552 | 3871 | 7423 | 0 | 0 | 0 | |
| Tachysurus ussuriensis | 1393 | 32 | 1425 | 0 | 0 | 0 | |
| Synbranchiformes | Monopterus albus | 259 | 136 | 395 | 0 | 0 | 0 |