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Blue food demand across geographic and temporal scales.
- Source :
-
Nature communications [Nat Commun] 2021 Sep 15; Vol. 12 (1), pp. 5413. Date of Electronic Publication: 2021 Sep 15. - Publication Year :
- 2021
-
Abstract
- Numerous studies have focused on the need to expand production of 'blue foods', defined as aquatic foods captured or cultivated in marine and freshwater systems, to meet rising population- and income-driven demand. Here we analyze the roles of economic, demographic, and geographic factors and preferences in shaping blue food demand, using secondary data from FAO and The World Bank, parameters from published models, and case studies at national to sub-national scales. Our results show a weak cross-sectional relationship between per capita income and consumption globally when using an aggregate fish metric. Disaggregation by fish species group reveals distinct geographic patterns; for example, high consumption of freshwater fish in China and pelagic fish in Ghana and Peru where these fish are widely available, affordable, and traditionally eaten. We project a near doubling of global fish demand by mid-century assuming continued growth in aquaculture production and constant real prices for fish. Our study concludes that nutritional and environmental consequences of rising demand will depend on substitution among fish groups and other animal source foods in national diets.<br /> (© 2021. The Author(s).)
- Subjects :
- Africa
Animals
Aquaculture methods
Asia
Europe
Food Supply methods
Fresh Water
Geography
Global Health
Humans
Models, Theoretical
North America
Seafood supply & distribution
South America
Fishes growth & development
Food
Food Supply statistics & numerical data
Income statistics & numerical data
Seafood statistics & numerical data
Subjects
Details
- Language :
- English
- ISSN :
- 2041-1723
- Volume :
- 12
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nature communications
- Publication Type :
- Academic Journal
- Accession number :
- 34526495
- Full Text :
- https://doi.org/10.1038/s41467-021-25516-4