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

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Summary for Malawi (2017)
TotalProduction (t)Percent of total
fish production %
Estimated Numbers
(millions)
All species with an EMW
(Estimated mean weight)
          4,31335 5 - 12
All species without an EMW          7,90465Not estimated
Total fish production         12,217100
out of total aquaculture production         12,217

   

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Data for Malawi (2017)
SpeciesProduction (t)1Estimated
mean weight2
(EMW) g
EMW id2Estimated
Numbers
(millions)3
Tilapia shiranus          5,311 Not estimated4
Redbreast tilapia          2,593 Not estimated4
Mozambique tilapia          1,822500-800123 2 - 4
Tilapias nei          1,491250-800215 2 - 6
North African catfish            900500-1,500132 1 - 2
Rainbow trout             56210-5,000155 <1
Common carp             44500-2,50057 <1
 
Totals by estimate type:
Production (t)Percent of
total fish
production %
Estimated Numbers
(millions)
   Single species with an EMW           2,82223 3 - 6
   Multi species with an EMW           1,49112 2 - 6
Totals for species with an EMW          4,31335 5 - 12
Totals for species without EMW          7,90465 Not estimated4
Total fish production         12,217100
out of total aquaculture production         12,217

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.