Restoration work carried out on the Ina and Gowienica rivers (and their tributaries) is a part of the Oder Delta rewilding programme, and can hopefully increase fish migration and populations within the space.
Many streams and smaller rivers on the Baltic Beach bordering Germany and Poland are presently in very poor situation. The reintroduction of species (corresponding to salmon, sturgeon and sea trout) right here implies that aquatic habitats urgently have to be improved. The Rewilding Oder Delta crew and companions are actually working to revive fish populations and fish migration within the Oder Delta Lagoon and related rivers, in collaboration with native communities and state businesses in each nations.
In late October, members of the Society of the Friends of the River Ina and Gowienica (TPRIIG), along with a gaggle of anglers from SMOLT Goleniów, added 9 new gravel beds (as fish spawning grounds) on the River Bącznik (a tributary of the River Ina close to Bolechowo), six new gravel beds on a tributary of the River Gowienica, and two new gravel beds on the Gowienica itself (in addition to supplementing an present spawning floor on the Gowienica). All of those waterways are tributaries of the River Oder.
With unusually heat October climate conducive to outside actions, a complete of 30 individuals participated within the work, together with a big group of youngsters. Their efforts had been aided by a rented excavator, which the crew used so as to add greater than 120 tons of gravel and stone into the rivers. Along with offering areas the place fish can spawn, gravel beds in small mid-forest streams assist to stabilise river circulate and guarantee minimal water ranges throughout dry durations.
The spawning floor restoration work was preceded by a number of months of preparations. Preparations had been made with numerous authorities associated to the forested areas the place the rivers are positioned – the Regional Directorate for Environmental Safety in Szczecin, the native water administrator, the State Water Administration in Poland, the Water Administration Authority in Szczecin, the Water Supervisory physique in Goleniów, and the Forest Inspectorates of Goleniów and the village of Kliniska.
An skilled, Józef Jeleński, helped the restoration crew to pick the optimum dimension of gravel used. He has beforehand educated a number of the different crew members within the choice course of throughout earlier workshops. This coaching allowed the restoration work to be carried out effectively and ensured the performance of the gravel beds in accordance with related rules.
Funds for gravel buy and gear rental got here from the Society of Mates of the Ina and Gowienica rivers, and subsidies from the Baltic Sea Conservation Basis, made out there via the Szczecin-based Inexperienced Federation GAJA.
Fish spawning exercise really came about on a number of the newly laid gravel beds, regardless of the lateness of the season. Whereas there have been maybe extra fish prepared to spawn, the general numbers in 2018 had been low. There are a number of causes for this, from very heat summers and very low water ranges on the spawning grounds to extreme fishing strain downriver.
Through the restoration work it was agreed that comparable efforts might be repeated yearly in several elements of the Ina and Gowienica river basins, as that is the one means to enhance their ecological situation. Comparable efforts additionally came about in 2018 within the Rega and Parsęta river basins (each rivers circulate into the Baltic near the Oder Delta).
- Learn extra about Rewilding Europe’s work within the Oder Delta here.
- Go to the Rewilding Oder Delta Fb web page here.
- View choices for exploring the Oder Delta with the European Safari Firm here.