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

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Summary for Romania (2017)
TotalProduction (t)Percent of total
fish production %
Estimated Numbers
All species with an EMW
(Estimated mean weight)
         11,95693 7 - 35
All species without an EMW            8427Not estimated
Total fish production         12,797100
out of total aquaculture production         12,798


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Data for Romania (2017)
SpeciesProduction (t)1Estimated
mean weight2
(EMW) g
EMW id2Estimated
Common carp          4,539500-2,50057 2 - 9
Bighead carp          2,771500-1,50029 2 - 6
Silver carp          1,854300-1,500182 1 - 6
Rainbow trout          1,840210-5,000155 <1 - 9
Carassius spp            862150-400535 2 - 6
Sturgeons nei            252 Not estimated4
Brook trout            230 Not estimated4
Pike-perch            124 Not estimated4
Freshwater fishes nei            114 Not estimated4
Grass carp(=White amur)             89500-2,50087 <1
Wels(=Som) catfish             46 Not estimated4
Freshwater bream             27 Not estimated4
Northern pike             20 Not estimated4
Roaches nei             17 Not estimated4
Sea trout              8 Not estimated4
European perch              2 Not estimated4
Totals by estimate type:
Production (t)Percent of
total fish
production %
Estimated Numbers
   Single species with an EMW          11,95693 7 - 35
Totals for species with an EMW         11,95693 7 - 35
Totals for species without EMW            8427 Not estimated4
Total fish production         12,797100
out of total aquaculture production         12,798

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.