Table 3 Summary of the GHG categories included in the calculations.
From: Quantifying greenhouse gas emissions from global aquaculture
Name | Description |
|---|---|
Feed: fertilizer production | Emissions arising from the production of synthetic fertilizers applied to crops |
Feed: crop N2O | Direct and indirect nitrous oxide from the application of N (synthetic and organic) to crops and crop residue management |
Feed: crop energy use | CO2 from energy use in field operations, feed transport and processing |
Feed: crop LUC | CO2 from land use change arising from soybean cultivation |
Feed: rice CH4 | Methane arising from flooded rice cultivation |
Feed: fishmeal | CO2 from energy use in the production of fishmeal |
Feed: other materials | Emissions from the production of a small number of "other" feeds (including animal by-products, lime and synthetic amino acids) |
Feed: blending and transport | CO2 from energy use in the production and distribution of compound feed |
Pond fertilizer production | Emissions arising from the production of synthetic fertilizers applied to increase aquatic primary productivity |
On-farm energy use | Emissions arising from the use of electricity and fuels on fish farm |
Aquatic N2O | N2O from the microbial transformation of nitrogenous materials (fertilizers, excreted N and uneaten feed) in the fish farm water body |
