Fish species are based on Froese, R. and Pauly, D. (eds). 2008. Threatened species are the number of species classified by the IUCN as endangered, vulnerable, rare, indeterminate, out of danger, or insufficiently known.
| 2018 | |
|---|---|
| Italy | 52 |
| Mongolia | 2 |
| Albania | 44 |
| Andorra | 0 |
| Armenia | 3 |
| Austria | 11 |
| Azerbaijan | 14 |
| Belarus | 2 |
| Belgium | 13 |
| Bosnia and Herzegovina | 36 |
| Bulgaria | 22 |
| Croatia | 64 |
| Cyprus | 24 |
| Czechia | 2 |
| Denmark | 18 |
| Estonia | 5 |
| Finland | 6 |
| France | 53 |
| Georgia | 11 |
| Germany | 24 |
| Greece | 80 |
| Hungary | 9 |
| Iceland | 16 |
| Ireland | 28 |
| Kazakhstan | 14 |
| Kyrgyz Republic | 3 |
| Latvia | 6 |
| Liechtenstein | 0 |
| Lithuania | 6 |
| Luxembourg | 1 |
| North Macedonia | 13 |
| Moldova | 8 |
| Monaco | 15 |
| Montenegro | 32 |
| Netherlands | 15 |
| Norway | 23 |
| Poland | 8 |
| Portugal | 67 |
| Romania | 22 |
| Russian Federation | 39 |
| San Marino | 0 |
| Serbia | 15 |
| Slovak Republic | 5 |
| Slovenia | 33 |
| Spain | 83 |
| Sweden | 15 |
| Switzerland | 9 |
| Tajikistan | 5 |
| Turkiye | 131 |
| Turkmenistan | 13 |
| Ukraine | 24 |
| United Kingdom | 48 |
| Uzbekistan | 7 |
| Malta | 22 |
| Canada | 44 |
| United States | 251 |