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| Volume of the water body m3 | Ouémé River: 9,200,000; L. Nokoué: 250,000,000 ; P. Novo Lagoon: 53,400,000 | |||
| Fish production estimated in tonnes (based model from [36] ) | Ouémé River: 192 tonnes; L. Nokoué: 12,920 tonnes; P. Novo Lagoon: 2380 tonnes | |||
| Information on 2010 flood | Has caused the rise of water between 25 and 60 cm. More than 210 km2 of flooded land. Impact estimated at 262 million USD. Flood damage valuation per m2 was estimated to 1.21 USD | |||
| Volume of sand extracted in m3 per year |
| 2013 | 2015 | 2016 |
| Ouémé River | 50,695 | 51,074 | 54,074 | |
| P. Novo Lagoon | 43,442 | 42,511 | 43,963 | |
| L. Nokoué | - | 28,576 | 29,781 | |
| Market price of lagoon sand in USD/m3 |
| 15.7 | 16.8 | 17.0 |
| Average price of fish in USD/kg |
| 2.4 | 2.6 | 3.0 |
| Market price of land for terrestrial sand mining USD/m2 |
| 25 | 25 | 25 |