produced. They used more than 1 kg of other products per
ton fish produced (see next section).
LCI data for fish seed and fingerling production are not
reported in this paper as these are negligible compared with
grow-out farming and because data were not available on
the nutrient content of the effluent water. Note that fish
densities in the hatcheries and fingerling nurseries were low
and overall this process in the production system used less
than 0.5% of the biomass input used in the grow-out farms.