Knaus Ulrich

Ricercatore, University of Rostock

13 febbraio

Sessione:
L’ECONOMIA CIRCOLARE DELL’ACQUAPONICA

Relazione:

Classificazione e nomenclatura dell’acquaponica, lezioni dalle sfide passate e future

Ulrich Knaus & H.W. Palm

Aquaponics is receiving increasing attention in the European agricultural sector and urban societies as a sustainable production system from small scale-home producers to large commercial enterprises. The classification of aquaponic systems was recently revised and categorises four main activities: open aquaponics; domestic aquaponics; demonstration aquaponics and commercial aquaponics. A new nomenclature now divides between classical aquaponics in the narrower sense (sensu stricto: s.s.) and aquaponics farming in the broader sense (sensu lato: s.l.) where in both the majority (> 50%) of nutrients sustaining the optimal plant growth derive from waste originating from feeding the aquatic organisms. Classical aquaponics (s.s.) defines soilless plant production by means of hydroponic techniques such as deep water culture, nutrient film technique, ebb and flow, drip and aeroponics.  Aquaponics farming uses the process water from the aquaculture for horticulture and plant cultivation by substrates and soil. First experiments clearly demonstrate benefits through the joint cultivation of fish and plants, e.g. increasing fish welfare. Future challenges include the establishment of aquaponic value chains including local markets as well retailers in order to expose the consumer with more products based on this sustainable agricultural system. Other research areas can be considered the gross yield diversification by the use of several species of fish within the same aquaponic system, or so called POLYPONICS.

 

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