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A Aalreuse is fall-like equipment to the catch of Flussaalen. There are different designs.
A Aalreuse mostly consists of several rings of stronger Weidenruten, plastics or metal (Nirostastahl), from which from in each case tapering nets run themselves to the rear. The narrow rear openings form a back swimming barrier. From them a disk-shaped net goes outward to the next ring. Thus a Aalreuse consists of several chambers. Into the rear chamber seals become (e.g. Naked snails with Pfefferminz, rope worms or shell meat) put. If now a Aal in-swims into the staggered array, in order to get itself the seal. thus he does not find by the narrow openings again outside. Similar staggered arrays are used also for the catch by cancers.
Aalreusen are usually fastened with a line to the bank and held by weights as well as a float in the current. With the sea-fishery the staggered arrays are fastened to bars, so-called Staken.
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