Sustainability
Sustainability and Resource Stewardship
Sustainability in aquaculture is not a separate programme; it is what good farm performance looks like over time. A farm that uses water carefully, converts feed efficiently, manages waste, uses energy wisely and supports its people is both more responsible and more resilient. This page sets out the questions and indicators that connect these themes.
Water
Water is the medium of production and a shared resource. Questions to ask: How much water does the farm withdraw per kilogram produced? Where does it come from and who else depends on it? How is effluent treated before it leaves the farm? Indicators include water use per tonne of harvest, exchange rate, effluent nutrient concentrations and compliance with discharge rules.
Feed
Feed is usually the largest cost and the largest source of waste. Questions: What is the feed conversion ratio achieved over a full cycle? What proportion of the feed comes from fishmeal and fish oil, and from where? Is feed stored to prevent spoilage? Indicators include feed conversion ratio, fish-in fish-out ratio where relevant and feed wastage observed on trays.
Waste
Solids, nutrients and mortalities must go somewhere. Questions: Is sludge captured and reused, for example in agriculture, or discharged? How are mortalities disposed of? Are chemicals and medicines handled safely? Indicators include the proportion of solids captured, sludge destination and records of chemical use.
Energy
Energy underpins oxygen and reliability in intensive systems. Questions: How many kilowatt-hours are used per kilogram produced? What is the source of that energy? What backup exists? Indicators include energy per tonne, share of renewable supply and tested backup capacity.
People
Farms depend on skilled, safe and fairly treated workers. Questions: Are workers trained in water quality, animal handling and electrical safety? Are working conditions safe around water and machinery? Does the farm share knowledge with neighbours? Indicators include training records, safety incidents and participation in local learning networks.
Measuring rather than claiming
This portal does not present measured sustainability values for any farm, because none have been verified. Instead it encourages farmers to record their own indicators over full cycles, compare them across seasons and use them to improve. The pages on animal health, farm economics and the value chain develop each theme.