environment
The Tyrolean Fishing Association is starting a project to revitalize the Sill with grayling and spawning fish from the Inn. Fish eggs are either buried in incubators or sunk into the bottom of the water via a pipe. Structural measures were also taken.
In the cocooning method, according to a statement from the Tyrolean Fishing Association, fertilized eggs are placed in incubators and buried in suitable places on the bottom of the water. When the larvae have hatched and reached a certain stage of growth, they leave or are retrieved from the boxes and released into the water.
With artificial nests, the eggs are sunk directly, without an incubator, through a pipe into the bottom of the water. According to the fishing association, attempts are being made to imitate the natural reproduction of grayling and trout as best as possible. The advantage of both methods: The fish are born in their natural environment and grow up there. This ensures a significantly better adaptation to the natural conditions of wild waters than is the case with bred stocking fish.
Sill becomes passable for fish once more
Through various measures such as the removal of weirs or barriers and the increase in residual water volumes in certain sections, more than 20 kilometers of the Sill river from the Inn should be accessible for spawning fish. According to the fishing association, this should also apply to the Ruetz from 2027.
With cocooning and artificial nests, the fisheries association, together with the Innsbruck district committee, is trying to establish a sustainable spawning stock of grayling. If the conditions are right, such as enough residual water, natural grayling will gradually multiply in the sill. The survival of the grayling is difficult, everywhere the stocks are currently broken.