In this project a feasibility study of polyculture of Astacus Astacus (European crayfish) with Coregonus wartmanni (whitefish) was conducted. In the preparatory phase were collected and selected the water by suitable research partners, which are responsible for the study of polyculture in the feasibility phase. In the exploratory phase has been defined (objectives, indicators, research priorities, etc.) for the planned stages of feasibility of the study (mentioned below as a main project). In feasibility stage will be examined whether is possible one polyculture with Astacus astacus and Coregonus in different intensity stages in pond and circular economy and can be sensible economically operated.

Project Partners:

• Steinbeis Innovation gGmbH Institut für nachhaltige Ressourcennutzung
• Institut für Umweltwissenschaften der Universität Koblenz-Landau
• Zoologisches Institut der CAU zu Kiel Arbeitsgruppe Prof. Dr. Brendelberger
• Senect GmbH & Co .KG Dr. Andreas Mäck
• Krebszucht Oeversee – Helmut Jeske

Project aim – Product

In the planned feasibility phase in a pilot installation will be tested the possibility to generate the Astacus in association with Coregonus as co-product of aquaculture. It could be first successful 2 top products of aquaculture under utilization of synergy effects in parallel in the same waters. The demands on habitat and food, and the expected behavior towards each other can expect a successful cooperation. One problem with fish farming, namely with the accumulation of unaccepted fish feed on the pond floor, it´s connected with flush debris and appropriate cleaning effort should be mitigated considerably because just there the Astacus staying for feed intake. In the farms is possible again rationally to use unneeded water treatment facilities of the old ponds that in abundance. In the process it should be checked different degrees of eco-friendly extensive farming, in which part of the economic use it’s possible.

For the feasibility phase were stated the following objectives: