| Blyth | |
| Name Etymology: | Arthur Blyth |
| Map Size: | 250 |
| Pushpin Map: | Australia Northern Territory |
| Pushpin Map Size: | 250 |
| Pushpin Map Caption: | Location of the Blyth River mouth in the Northern Territory |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | Territory |
| Subdivision Name2: | Northern Territory |
| Subdivision Type3: | Region |
| Subdivision Name3: | Arnhem Land |
| Length: | 175km (109miles) |
| Discharge1 Avg: | 58.9m3/s |
| Source1 Location: | Arnhem Land, Australia |
| Source1 Elevation: | 194m (636feet) |
| Mouth Location: | Boucaut Bay, Timor Sea, Australia |
| Mouth Coordinates: | -12.1458°N 134.5889°W |
| Mouth Elevation: | 0m (00feet) |
| Basin Size: | 9219km2 |
| Tributaries Left: | Shadforth Creek, Saddlers Creek, Immibar Creek, Cadell River |
| Tributaries Right: | Guyuyu Creek, Rangaburu Creek |
| Extra: | [1] |
The Blyth River is a river in the Northern Territory, Australia.
The headwaters rise east of Shadforth Hills and flows in a northerly direction through mostly uninhabited country, past the small community of Gamardi before discharging into Boucaut Bay.[1]
The catchment occupies an area of 9219km2 and is situated between the Liverpool River catchment to the west, the Goyder River catchment to the east and the Roper River catchment to the south.[2] It has a mean annual outflow of 1860GL,[3]
The Cadell and Blyth Floodplains are located at the lower reaches of the river and occupy an area of 432km2.
The estuary formed at the river mouth is tidal in nature and in near pristine condition.[4]
The river was named by Francis Cadell in 1867 after the Premier of South Australia, Arthur Blyth.[5]
David Lindsay charted the river in 1883 during his expedition of Arnhem Land.
Many species of fish are found in the river including Sailfin Glassfish, Macleay's Glassfish, Barred Grunter, Fly-specked Hardyhead and Pennyfish, Goby, Flathead Goby, Giant Gudgeon, Empire Gudgeon, Threadfin Rainbowfish, Barramundi, Diamond Mullet, Rainbowfish, Western Rainbowfish, Black-banded Rainbowfish, Chequered Rainbowfish, Bony Bream, Black Catfish, Rendahl's Catfish, Seven-spot Archerfish.[6]