Teriberka river of the Barents Sea
The total length of Teriberka is 127 km. On its way, the river passes through 18 lakes of varying sizes. The basin area is 2227 km².
The source of the river is located at the exit from Lake Repyavr, flowing into the Teriber Bay of the Barents Sea. Threshold. The food is mainly snow. The largest tributaries are Muchka, Kolyok, Narisyavryok and Altyavryok. Passes through Lake Poirenthiavre. A cascade of two hydroelectric power stations was built on the river in 1976-1990, forming the Upper Teriber and Lower Teriber reservoirs. At the mouth of the river is the village of Teriberka. Above Lake Repyavr (Kuropachye) the river is relatively calm, and below it a chain of difficult sections begins, interrupted only by lakes. Most of the rapids stretch for 200–300 m, the riverbed is littered with stones, and there is often no through passage for ships. Over a distance of 65 km there are about 30 rapids. Only in the area where the Kola-Golitsyno road (Voronya River) crosses the river does Teriberka become wide (up to 100 m) and shallow (less than 0.5 m).
The river flows calmly for a little more than 10 km, and then there are rapids again. Behind the fourth lake after the Kola-Golitsyno road, the most difficult and interesting section of Teriberka begins. The banks are mostly high; In some places, the stormy, as if boiling, river is squeezed by vertical stone walls. There are five waterfalls in this area: the first three are 2–3 m high, and the fourth and fifth are 8–10 m high. Teriberka is the most beautiful below Lake Lopyavr, where, cutting through the rocks, it forms a multi-cascade waterfall. The water quality of the Teribirka River is affected by polluted runoff from the Murmansk-Tumanny highway. Increased concentrations of metals and petroleum products are observed. The average annual concentration of copper is 2 MPC, zinc is 6 MPC, iron, manganese and nickel are at the MPC level.
The river bed is very winding, with a large number of rapids. The soil of the river bed is rocky and boulder, periodically turning into pebble and sand.
A cascade of two Teriberka hydroelectric power stations was built on the Teriberka River. Type of reservoirs: channel type.
The dam of the Verkhne-Teribersky hydroelectric complex was put into operation at the end of 1984 and is located 12.4 km from the river mouth. The mirror area is 31.1 km2, maximum depth is 50.0 m, average depth is 16.0 m, maximum width is 4 km.
The dam of the Nizhne-Teribersky hydroelectric complex was put into operation in 1987. The surface area is 1.42 km2, the maximum depth is 20.0 m, the average depth is 10.0 m, the maximum width is 0.5 km.
Ichthyofauna
Before the construction of the Lower Teriber dam, the lower reaches of the river were the spawning grounds for salmon and pink salmon. The spawning grounds were located between two waterfalls: the first waterfall was located 4 km from the river mouth, the second at 16 km. After the construction of the Cascade of Teribersky hydroelectric power stations, these spawning grounds were partially flooded.
The ichthyofauna of the Teriberka River, reservoirs and lakes is represented by the following fish species:
- – brown trout (Salmo trutta L.),
- – whitefish (Coregonus lavaretus L.),
- – brook trout (Salmo trutta morfa fario L.),
- – pike (Esox lusius),
- – burbot (Lota lota L.),
- – perch (Perca fluviatilis L.),
- – minnow (Phoxinus phoxinus L.).
The river has spawning and feeding areas for the spawning of valuable fish species.
Salmon enters the estuarine zone of the Teriberka River and rises to a tributary of the river to spawn. Muchka.