The potential of aquaponics systems to increase the nutrient use efficiencies of aquaculture.

Dr. Simon Goddek

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Personal Background

Simon

PhD in Iceland => Later Wageningen, The Netherlands

Focus on Causal Loop Relationships in Aquaponics Systems

System engineering approach

System optimization

Nutrient and Water Use efficiency

Wageningen University & UNESP

About me

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Why Aquaponics?

Environmental Impact #1

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Environmental Impact #2

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One-Loop Systems

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One-Loop Systems

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Optimal Conditions

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Aquaponics 2.0

Two-Loop Systems

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Growth Rate

(Delaide et al. 2016)

Multi-Loop Systems

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Decoupled Multi-Loop AP System

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Environmental Impact #3

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Planetary Boundaries

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Coupled vs. Decoupled

Major Drawbacks:

Growth conditions (temperature, pH, etc.) for both plants and fish are not optimal.

Lower yields compared to stand-alone hydroponic and aquaculture systems.

Fish sludge (poop) is not used => nutrient loss!

One-Loop Systems

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Advantages:

Optimal conditions for fish and plant

Remineralization of fish poop in anaerobic reactors; i.e. creation of bio fertilizers for the plants

Main water loss only via evapotranspiration; i.e. ETc dependency

Increased Yields

Control the concentration of the hydroponic nutrient solution.

Disadvantage:

Measurement and Control

Complexity (HRM!)

Multi-Loop Aquaponic Systems

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Projects

Project #1: Desert Fresh Food (Namibia)

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Namibia

Namibia Weather Conditions (2016)

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Namibia Sizing

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Concept Namibia

Project #2: Smarthoods & System Dynamics

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Project #3: Mushroom Integration

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Aquaponics Food Production System

Open Access

Approx. 500.000 Downloads since June

Aquaculture International

Editor for Aquaponics Section

Aquaponics Book + AQUI

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Time for a smile!