By Verbuttung one understands the over-strong rise of the number of white fish types in a waters. Particularly in smaller waters are above all inclined Flussbar, Brachsen, red eyes, Schleien and Karau to the Verbuttung.
A consequence of the Verbuttung is, under the food shortage released thereby, the of the verbutteten fish type.
The reason of the Verbuttung often is because of the fact that zuwenige robbery fish are present, and a natural adjustment of the existence by the fact is no longer ensured why in managed waters of the Verbuttung by Abfi (preserving fish) and trimming with larger robbery fish is worked against.
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