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

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Summary for Algeria (2017)
Total Production (t) Percent of total
fish production % Estimated Numbers
(millions)
All species with an EMW
(Estimated mean weight)             415 29 1

All species without an EMW             993 71 Not estimated

Total fish production           1,408 100

out of total aquaculture production           1,416

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Data for Algeria (2017)
Species Production (t)¹ Estimated
mean weight²
(EMW) g EMW id² Estimated
Numbers
(millions)³
Barbel             130 Not estimated⁴

Cyprinids nei             790 Not estimated⁴

European seabass              90 400-500 72 <1

Freshwater fishes nei              60 Not estimated⁴

Gilthead seabream             270 300-400 81 1

Largemouth black bass               5 680 110 <1

Meagre               2 Not estimated⁴

Mullets nei               1 Not estimated⁴

North African catfish              15 500-1,500 132 <1

Pike-perch              10 Not estimated⁴

Tilapias nei              35 250-800 215 <1

Totals by estimate type:

Production (t) Percent of
total fish
production % Estimated Numbers
(millions)

   Single species with an EMW             380 27 1

   Multi species with an EMW              35 2 <1

Totals for species with an EMW             415 29 1

Totals for species without EMW             993 71 Not estimated⁴

Total fish production           1,408 100

out of total aquaculture production           1,416

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.

Species	Production (t)¹	Estimated mean weight² (EMW) g	EMW id²	Estimated Numbers (millions)³
Barbel	130			Not estimated⁴
Cyprinids nei	790			Not estimated⁴
European seabass	90	400-500	72	<1
Freshwater fishes nei	60			Not estimated⁴
Gilthead seabream	270	300-400	81	1
Largemouth black bass	5	680	110	<1
Meagre	2			Not estimated⁴
Mullets nei	1			Not estimated⁴
North African catfish	15	500-1,500	132	<1
Pike-perch	10			Not estimated⁴
Tilapias nei	35	250-800	215	<1

Totals by estimate type:
	Production (t)	Percent of total fish production %		Estimated Numbers (millions)
Single species with an EMW	380	27		1
Multi species with an EMW	35	2		<1
Totals for species with an EMW	415	29		1
Totals for species without EMW	993	71		Not estimated⁴
Total fish production	1,408	100
out of total aquaculture production	1,416