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

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Data for Bastard halibut (Paralichthys olivaceus) in 2017
Country Production (t)¹ Estimated
mean weight²
(EMW) g EMW id² Estimated Numbers
(millions)³
Japan           2,300 800-1,500 26 2 - 3

Korea, Republic of          41,207 800-1,500 26 27 - 52

Total          43,507 29 - 54

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.

Country	Production (t)¹	Estimated mean weight² (EMW) g	EMW id²	Estimated Numbers (millions)³
Japan	2,300	800-1,500	26	2 - 3
Korea, Republic of	41,207	800-1,500	26	27 - 52
Total	43,507			29 - 54