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Trawler Fuel & CO₂

Bottom and pelagic trawlers. Outside CII scope; benchmarked per kg of landed catch - fuel-intensive fisheries (prawn, demersal) sit 3–5 kg CO₂/kg catch; pelagic fisheries 0.5–1.5 kg/kg.

Ship typeFishingTrawler
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Formula, assumptions, and limits

CO2year=jFjCf,j\text{CO}_2^\text{year} = \sum_j F_j \cdot C_{f,j}
SymbolMeaningUnit
FjF_jMass of fuel jjt
Cf,jC_{f,j}CO₂ factort CO₂ / t fuel
Bench(Annualcatch)Bench (Annual catch)operational benchmarkt
dopd_\text{op}Operating daysd

Source: FAO - Fuel use in the fishing fleet; IMO MEPC.364(79) - Cf conversion factors