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Nitrogen emissions per tonne of farmed seafood

Based on a meta-analysis of data from 1690 fish farms. This is given per kilogram of edible weight. Chicken – the lowest-carbon meat – is shown for comparison.

-100 kg-50 kg0 kg50 kg100 kg150 kg200 kgOther marine fish (farmed)234.55 kgChicken204.1 kgTilapia (farmed)199.83 kgOther freshwater fish (farmed)156.05 kgCarp (farmed)147.8 kgMilkfish (farmed)146.54 kgCatfish (farmed)132.88 kgShrimp (farmed)123.04 kgSalmon (farmed)110.56 kgTrout (farmed)98.89 kgSilver/bighead (farmed)43.28 kgSeaweed (farmed)-14.65 kgBivalves (farmed)-129.83 kg

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