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

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Summary for Nigeria (2017)
TotalProduction (t)Percent of total
fish production %
Estimated Numbers
All species with an EMW
(Estimated mean weight)
        177,85960 132 - 401
All species without an EMW        118,21240Not estimated
Total fish production        296,071100
out of total aquaculture production        296,191


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Data for Nigeria (2017)
SpeciesProduction (t)1Estimated
mean weight2
(EMW) g
EMW id2Estimated
Aba          6,632 Not estimated4
African bonytongue          5,674 Not estimated4
Characins nei          4,795 Not estimated4
Citharinus nei          4,872 Not estimated4
Cyprinids nei         25,227 Not estimated4
Freshwater fishes nei            750 Not estimated4
Grass-eaters nei          4,359 Not estimated4
Kafue pike          3,889 Not estimated4
Nile perch         16,470 Not estimated4
North African catfish        155,325500-1,500132 104 - 311
Parachanna snakeheads nei          2,612 Not estimated4
Reticulate knifefish          7,432 Not estimated4
Tilapias nei         22,534250-800215 28 - 90
Torpedo-shaped catfishes nei         30,650 Not estimated4
Upsidedown catfishes          4,850 Not estimated4
Totals by estimate type:
Production (t)Percent of
total fish
production %
Estimated Numbers
   Single species with an EMW         155,32552 104 - 311
   Multi species with an EMW          22,5348 28 - 90
Totals for species with an EMW        177,85960 132 - 401
Totals for species without EMW        118,21240 Not estimated4
Total fish production        296,071100
out of total aquaculture production        296,191

Estimated by A Mood and P Brooke, Sep 2019

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.