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Estimated numbers of individuals in aquaculture production (FAO) of selected fish species 2017

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Data for African bonytongue (Heterotis niloticus) in 2017
CountryProduction (t)1Estimated
mean weight 2
(EMW) g
EMW id2Estimated Numbers
(millions)3
Nigeria          5,674 Not estimated4
Côte d'Ivoire            450 Not estimated4
Ghana            110 Not estimated4
Burkina Faso             30 Not estimated4
Cameroon              9 Not estimated4
Gambia              1 Not estimated4
Total          6,274 Not estimated

Estimated by A Mood and P Brooke, Sep 2019


Notes
1. Source of production tonnage: FAO FishStat "Aquaculture Production (Quantities and values) 1950-2017 (Release date: 25th March 2019)".
2. Source of estimated mean weights (EMWs) : as for our earlier estimate, see Estimating the Number of Farmed Fish Killed in Global Aquaculture Each Year.
3. The estimated numbers are calculated as the production tonnage divided by estimated mean weight (EMW) where a mean weight has been estimated for the species.
4. The fish numbers for species without an estimated mean weight (EMW) have not been estimated for each individual species or country.