Abstract:
:Global aquaculture makes an important contribution to food security directly (by increasing food availability and accessibility) and indirectly (as a driver of economic development). In order to enable sustainable expansion of aquaculture, we need to understand aquaculture's contribution to global greenhouse gas (GHG) emissions and how it can be mitigated. This study quantifies the global GHG emissions from aquaculture (excluding the farming of aquatic plants), with a focus on using modern, commercial feed formulations for the main species groups and geographic regions. Here we show that global aquaculture accounted for approximately 0.49% of anthropogenic GHG emissions in 2017, which is similar in magnitude to the emissions from sheep production. The modest emissions reflect the low emissions intensity of aquaculture, compared to terrestrial livestock (in particular cattle, sheep and goats), which is due largely to the absence of enteric CH4 in aquaculture, combined with the high fertility and low feed conversion ratios of finfish and shellfish.
journal_name
Sci Repjournal_title
Scientific reportsauthors
MacLeod MJ,Hasan MR,Robb DHF,Mamun-Ur-Rashid Mdoi
10.1038/s41598-020-68231-8subject
Has Abstractpub_date
2020-07-15 00:00:00pages
11679issue
1issn
2045-2322pii
10.1038/s41598-020-68231-8journal_volume
10pub_type
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