Fish inventory studies are conducted by scientist to examine trends in abundance and population variables for key indicator fish species. The inventory focuses on sections of the River in Laos that are adjacent to dam development near tributaries with development within their watershed. An inventory is also conducted on the Clearwater River to provide some perspective on fish communities of a river without development
Fish Species
| No. | Station | Lao Name | Family | Species | Author | Occurrence | Max Length | Remark | Photo | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Jing Hong | ປາສະນາກໃຫຍ່ | Cyprinidae | Aaptosyax grypus | Rainboth, 1991 | native | 130 cm SL male/unsexed | Occurs in the middle Mekong River and lower most course of main tributaries (Ref. 43281). Found in Ban Hang Khone at Don Khone, 3 km below the fall line of the great waterfalls of the Mekong basin at Lee Pee (Ref. 9497). Apparently restricted to the mains |  | |||||
| 2 | Manan | Gobionidae | Abbottina rivularis | (Basilewsky, 1855) | introduced | 18.90 cm TL male/unsexed | Introduced in the Mekong basin. |  | ||||||
| 3 | Chiang Saen | Cobitidae | Acanthopsoides gracilis | Fowler, 1934 | native | 5.40 cm SL male/unsexed | Known from the Mekong basin. Also Ref. 36654. |  | ||||||
| 4 | Luang Prabang | Cobitidae | Acantopsis dialuzona | Van Hasselt, 1823 | native | 25.00 cm SL male/unsexed | Known from the Mekong basin (Ref. 4792). Also Ref. 7050, 36654. |  | ||||||
| 5 | Chiang Khan | Cobitidae | Acantopsis ioa | Boyd & Page, 2017 | native | 13.20 cm SL male/unsexed | Widely distributed in the mainstem Mekong River. Also occurs in Nam Lik, a large tributary of the Mekong (Ref. 116755). |  | ||||||
| 6 | Vientiane | Cobitidae | Acantopsis rungthipae | Boyd, Nithirojpakdee & Page, 2017 | native | 11.97 cm SL male/unsexed | Known from Mekong River basin (Ref. 116755). |  | ||||||
| 7 | Nongkhai | Soleidae | Achiroides leucorhynchos | Bleeker, 1851 | native | 8.00 cm SL male/unsexed |  | |||||||
| 8 | Paksan | Soleidae | Achiroides melanorhynchus | (Bleeker, 1850) | questionable | 14.00 cm SL male/unsexed | Listed as Achiroides cf. melanorhynchus in Ref. 30857; occurrence needs verification. |  | ||||||
| 9 | Nakhon Phanom | Cyprinidae | Acrossocheilus xamensis | Kottelat, 2000 | native | 23.53 cm SL male/unsexed | Known only from the Nam Xam basin. Type locality is Houay Tangoua, small stream entering Nam Xam in Ban Houatangoua, Houaphan Prov. (Ref. 36949). Also Ref. 43281. |  | ||||||
| 10 | Thakhek | Akysidae | Akysis bilustris | Ng, 2011 | native | 2.53 cm SL male/unsexed |  | |||||||
Count Records: 526 | ||||||||||||||