Globalization of wild capture and farmed aquatic foods

Overview

This archive includes all input data and code to reproduce all results in Gephart et al. (2024) Globalization of wild capture and farmed aquatic foods, Nature Communications. The full Aquatic Resource Trade in Species (ARTIS) database, which underlies the figure and results data files in this archive, is available on KNB (doi:10.5063/F1CZ35N7). The input data and code base underlying ARTIS is also available on KNB (doi:10.5063/F1862DXT).

Description of file structure:

All data files to reproduce the figures and results are located in the “manuscript_inputs” folder. All files starting with “fig” or “si_fig” in their filename refer to input data files for the figures created in the manuscript, for example “fig1a_data.csv” refers to the data file used to create figure 1a in the manuscript. All other files refer to input files used to create the data summaries that appear in the results text of the manuscript.

Note: For table descriptions for the results please refer to the markdown files located in the linked GitHub repository.

Table Descriptions:

Figure 1 tables: Increases in global export of aquatic foods.

a) Exports of global marine and freshwater aquaculture and fishery products (in million t, live weight equivalent) from 1996-2020.

• Year: 1996-2020

• Habitat_method: Production habitat and method of the exported goods

• Live_weight_t: Seafood exports, live weight equivalents (tonnes)

b) Percent of global marine and freshwater aquaculture and fishery production exported, excluding re-exports.

• Year: (1996-2020)

• Habitat_method: Production habitat and method of the exported goods

• Environment: Production habitat of exported goods

• Dom_live_weight_t: Total global domestic exports, live weight equivalent (tonnes)

• Production_t: Total global production, live weight equivalent (tonnes)

• Percent_export: Percent of production that was domestically exported (%)

c) Average number of export partners (in degree) by production method and environment, with the grey bands representing the 95% confidence interval.

• Year: (1996-2020)

• Iso3c: ISO3 code of exporting country

• Habitat_method: Production habitat and method of seafood exports

• All_out_degree: number of import partners a given exporter has

• All_in_degree: number of export partners a given importer has

d) Number of countries comprising 75% of global exports by production method and environment (generated by fig_1d_habitat_method.csv) with the global total in the black line (generated by fig_1d_totals.csv).

• Year: (1996-2020)

• Habitat_method: Production method of habitat

• N: number of countries necessary to comprise 75% of global exports

e) Number of countries comprising 75% of global imports by production method and environment (generated by fig_1e_habitat_method.csv) with the global total in the black line (generated by fig_1e_totals.csv).

• Year: (1996-2020)

• Habitat_method: Production method of habitat

• N: number of countries necessary to comprise 75% of global imports 

Figure 2 tables:

Maps of national aquatic food consumption (in million tonnes, live weight equivalent) represented by fill color for marine capture, marine aquaculture, inland capture, and inland aquaculture, along with the top 10 trade flows, with the arrow color indicating export volume. Accompanying each map is a ranked bar chart of the top 5 traded scientific names by group, each with two stacked bars to indicate the producing and consuming regions.

Top Species/species group tables:

• Common_name: Common name of species/species group

• Habitat_method: Production habitat and method

• Consumption_live_t: Foreign consumption of species/ species groups produced through the habitat method specified

• Flow: Identifies producers and consumers of flow of seafood

• Region: identifies region of producer/consumer

• Total: total foreign consumption of species/species group produced through production habitat and method

Flow of seafood from producers to consumers by production method tables:

• Consumer_iso3c: ISO3 code of consuming country

• Source_country_iso3c: ISO3 code of country produced by specific production habitat and method

• Consumption_live_t: foreign consumption of seafood produced by specific production habitat and method

Figure 3: Regional trade flows by production source (habitat and method)

• Year: year (1996-2020)

• Exporter_region: Exporting region

• Importer_region: importing region

• Habitat_method: Production habitat and method used to produce seafood goods

• live_weight_t: Seafood traded from exporter_region to importer_region (live weight equivalent, tonnes)

• Exporter_importer: Column describing flow from exporter_region to importer_region

Figure 4: Aquatic food apparent consumption (supply) trends and regional patterns

Figure 4a table:

• Year: year (1996-2020)

• Habitat_method: Production habitat and method

• Supply: global consumption of seafood produced by the specific production habitat and method

• Year_global_pop: Global population for a given year

• Supply_per_cap: global consumption per capita (kg)

Figure 4b table:

• Year: year (1996-2020)

• Region: region consuming seafood

• Habitat_method: Production habitat and method

• Supply: regional consumption of seafood produced by the specific production habitat and method

• pop: Regional population for a given year

• Supply_per_cap: regional consumption per capita (kg)

Figure 4c table: Global consumption sources

• Year: year (1996-2020)

• Supply_source: Consumption source (domestic means consumption was sourced from domestic production of seafood, foreign means consumption was sourced from imports)

• Supply_percent: percent of consumption that was sourced domestically vs foreign

Figure 4d table: Regional consumption sources

• Region: region consuming seafood

• Year: year (1996-2020)

• Supply_source: Consumption source (domestic means consumption was sourced from domestic production of seafood, foreign means consumption was sourced from imports)

• Supply_percent: percent of consumption that was sourced domestically vs foreign

SI Figure 1: Regional trade networks for 2019

• Exporter_region: Region exporting seafood to importer_region

• Importer_region: Region importing seafood from exporter_region

• Habitat: Production habitat

• Method: Production method

• Year: year (1996-2020)

• Live_weight_t: Seafood exported from exporter_region to importer_region disaggregated by production habitat and method (live weight equivalent, tonnes)

SI Figure 2: Top exporters from 1996 - 2000 and 2016-2020 by habitat and production method. Trade volumes represent the average annual trade volumes over that period in live weight equivalent, further broken down by export source (domestic/foreign/error).

Note: the tables with “old” in the title summarize this data from 1996-2020, the tables with “recent” in the title summarize this data from 2016-2020).

• Exporter_iso3c: ISO3 code of exporting country

• Habitat_method: Production habitat and method

• Foreign: Seafood Exported sourced from imports (live weight equivalent, tonnes)

• Domestic: seafood exported sourced from domestic production (live weight equivalent, tonnes)

• Live_weight_t: Total seafood exported by exporter_iso3c (live weight equivalent, tonnes)

• Ranking: top 10 exporters rankings by production habitat and method

SI Figure 2: Top importers from 1996 - 2000 and 2016-2020 by habitat and production method. Trade volumes represent the average annual trade volumes over that period in live weight equivalent, further broken down by export source (domestic/foreign/error).

Note: the tables with “old” in the title summarize this data from 1996-2020, the tables with “recent” in the title summarize this data from 2016-2020).

• Importer_iso3c: ISO3 code of importing country

• Habitat_method: Production habitat and method

• Foreign: Seafood imported sourced from imports (live weight equivalent, tonnes)

• Domestic: seafood imported sourced from domestic production (live weight equivalent, tonnes)

• Live_weight_t: Total seafood imported by importer_iso3c (live weight equivalent, tonnes)

• Ranking: top 10 importers rankings by production habitat and method 

SI Figure 4: Changes in interregional export (1000 live weight tonnes) flows from 1996 to 2020. Color indicates flows within a region (orange) versus between different regions (blue)

• Exporter_region: Exporting region

• Importer_region: Importing region

• Exporter_importer: describes trade flow from exporter_region to importer_region

• Slope: average annual change in exports

• Intraregion: specifies whether trade was intra vs inter-regional trade

SI Figure 5: Time series of blue food exports from 1996 - 2020

• Dom_source: Defines whether exports were sourced from domestic production (domestic) vs from imports (foreign)

• Year: year (1996-2020)

• Habitat_method: Production habitat and method (when this column is specified live_weight_t is disaggregated by production habitat and method, otherwise it describes aggregated global seafood exports)

• Live_weight_t: Global exports of seafood (live weight equivalent, tonnes)

SI Figure 6: Net exports from least developed countries, as defined by the United Nations, with lines colored by the production type and habitat. The grey line indicates the total net export

• Year (1996-2020)

• Habitat_method: Production habitat and method

• Ldc_import: imports by least developed countries

• Ldc_export: exports by least developed countries

• Net_import: ldc_import - ldc_export

• Net_export: ldc_export - ldc_import

SI Figure 7: Total product weight exports (tonnes) from 1996 - 2020, by HS Version. Each colored dotted line represents the total export product weight (tonnes) according to each HS version. The black line represents the ARTIS total exported product weight where a specific HS version was selected for a specific year

• Year: year (1996-2020)

• Hs_version: HS version used to calculate total seafood exports (when “Custom ARTIS time series” is specified,this denotes the custom HS version and year pairing used for all figures and results)

• Product_weight_t: Global seafood exports (product weight equivalent, tonnes)