| Genus | Species | Introduced to | Introduced from | Year | Reason 1 | Reason 2 | Reason 3 | Introducer | Established in the wild | Established through | As aquaculture species | Ecological effects | Type of ecological effects | Socio- economic effects | Type of socio- economic effects |
| Abramis | ballerus | Former USSR | unknown | 1957 | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Abramis | bjoerkna | Cyprus | UK | 1972 | accidental | unknown | yes | natural reproduction | unknown | unknown | |||||
| Abramis | bjoerkna | Italy | unknown | 1993 | unknown | unknown | probably yes | natural reproduction | unknown | unknown | |||||
| Abramis | brama | Former USSR | unknown | 1932 | unknown | unknown | probably no | unknown | unknown | ||||||
| Abramis | brama | Ireland | England | 17th-18th century | angling/sport | individual | yes | natural reproduction | unknown | probably no | |||||
| Abramis | brama | Italy | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Abramis | brama | Spain | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Abramis | brama | Turkey | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Abudefduf | saxatilis | Italy | Red Sea | unknown | diffused from other countries (Lessepsian migration) | unknown | yes | unknown | unknown | ||||||
| Acanthalburnus | microlepis | Iraq | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Acanthobrama | terraesanctae | Israel | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Acanthogobius | flavimanus | Australia | Japan | 1971 | accidental | other introducer | yes | natural reproduction | unknown | unknown | |||||
| Acanthogobius | flavimanus | USA | Japan | 1963 | accidental | unknown | yes | natural reproduction | unknown | unknown | |||||
| Achatina | fulica | Taiwan Island (Prov. of China) | Singapore | 1932 | unknown | unknown | yes | natural reproduction | yes | adverse | yes | adverse | |||
| Acipenser | baeri | Estonia | Russia | 1960s, 1990s | aquaculture | fisheries | government | no | rarely used | no | unknown | ||||
| Acipenser | baeri | Former USSR | unknown | 1956 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Acipenser | baeri | France | USSR | 1975 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Acipenser | baeri | Hungary | Russia | 1982 | aquaculture | research | government | no | widely used | yes | beneficial | yes | beneficial | ||
| Acipenser | baeri | Japan | USSR | 1964 | fisheries | unknown | no | unknown | unknown | ||||||
| Acipenser | baeri | Poland | Russia | 1993 | aquaculture | research | fisheries | government | no | continuous restocking | rarely used | unknown | yes | undecided | |
| Acipenser | baeri | Uzbekistan (Syr Darya basin) | unknown | unknown | unknown | unknown | yes | natural reproduction | probably no | unknown | |||||
| Acipenser | fulvescens | Former USSR | unknown | 1969 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Acipenser | gueldenstaedti | Estonia | Russia | 1962, 1990s | aquaculture | fisheries | government | no | rarely used | no | probably no | ||||
| Acipenser | gueldenstaedti | Poland | Russia | 1992-93 | aquaculture | research | fisheries | government | no | continuous restocking | rarely used | unknown | yes | undecided | |
| Acipenser | gueldenstaedti X ruthenus | Israel | Russia | unknown | aquaculture | private sector | probably no | rarely used | unknown | unknown | |||||
| Acipenser | gueldenstaedti gueldenstaedti | Finland | unknown | unknown | unknown | unknown | no | unknown | unknown | ||||||
| Acipenser | gueldenstaedti gueldenstaedti | Former USSR | unknown | 1962 | unknown | unknown | no | unknown | unknown | ||||||
| Acipenser | gueldenstaedti gueldenstaedti | Japan | USSR | 1963 | fisheries | unknown | no | unknown | unknown | ||||||
| Acipenser | gueldenstaedti gueldenstaedti | Sweden | unknown | unknown | unknown | unknown | no | unknown | unknown | ||||||
| Acipenser | ruthenus | Estonia | Russia | 1980s-1990s | aquaculture | private sector | no | rarely used | no | probably no | |||||
| Acipenser | ruthenus | Finland | USSR | 1920s, 1958 | angling/sport | aquaculture | private sector | probably no | rarely used | unknown | unknown | ||||
| Acipenser | ruthenus | Former USSR | unknown | 1763 | unknown | unknown | probably no | unknown | unknown | ||||||
| Acipenser | ruthenus | France | Hungary | 1976, 1980 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Acipenser | ruthenus | Germany | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Acipenser | ruthenus | Poland | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Acipenser | ruthenus | Sweden | unknown | unknown | unknown | unknown | probably no | unknown | unknown | ||||||
| Acipenser | spp. | Czech Republic | Russia | 1992-1993 | aquaculture | ornamental | private sector | probably no | no | yes | beneficial | ||||
| Acipenser | transmontanus | Italy | unknown | 1987 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Acrossocheilus | hexagonolepis | Papua New Guinea | Nepal | 1993 | fisheries | intern. organization | unknown | unknown | probably yes | undecided | |||||
| Aequidens | pulcher | USA | unknown | unknown | ornamental | unknown | no | unknown | unknown | ||||||
| Alburnus | alburnus | Cyprus | UK | 1972 | accidental | unknown | yes | natural reproduction | unknown | unknown | |||||
| Alburnus | alburnus | Spain | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Alepes | djedaba | Israel | Red Sea | unknown | diffused from other countries (Lessepsian migration) | unknown | yes | unknown | unknown | ||||||
| Alligator | mississippiensis | Taiwan Island (Prov. of China) | unknown | unknown | aquaculture | unknown | probably no | widely used | unknown | yes | beneficial | ||||
| Alosa | sapidissima | Canada | USA | unknown | diffused from other countries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ambloplites | rupestris | France | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ambloplites | rupestris | Mexico | USA | unknown | aquaculture | unknown | yes | natural reproduction | rarely used | unknown | unknown | ||||
| Ambloplites | rupestris | UK | USA | 1930 | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | catus | Philippines | USA (California) | 1935 | aquaculture | unknown | no | no | no | ||||||
| Ameiurus | catus | Puerto Rico | USA | 1938 | angling/sport | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Albania | unknown | unknown | unknown | unknown | probably yes | unknown | unknown | ||||||
| Ameiurus | melas | Belgium | North America | 1882, 1892 | aquaculture | private sector | yes | natural reproduction | yes | adverse | probably no | ||||
| Ameiurus | melas | Canada | USA | unknown | diffused from other countries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Chile | USA | 1907 | fisheries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Former USSR | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | France | USA | 1871 | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Germany | USA | 1885 | unknown | unknown | probably yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Hungary | Germany, Italy | 1902, 1980 | aquaculture | accidental | government | yes | natural reproduction | rarely used | yes | adverse | unknown | ||
| Ameiurus | melas | Ireland | unknown | unknown | unknown | unknown | probably yes | unknown | unknown | ||||||
| Ameiurus | melas | Italy | North America | 1900s | aquaculture | unknown | yes | natural reproduction | widely used | unknown | yes | beneficial | |||
| Ameiurus | melas | Netherlands | USA, France and Germany | 1900 | aquaculture | unknown | yes | natural reproduction | widely used | unknown | probably yes | beneficial | |||
| Ameiurus | melas | Norway | USA | 1890 | aquaculture | unknown | yes | natural reproduction | rarely used | unknown | unknown | ||||
| Ameiurus | melas | Poland | Germany | 1900s | aquaculture | unknown | yes | natural reproduction | rarely used | unknown | unknown | ||||
| Ameiurus | melas | Spain | unknown | 1980s | fisheries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | melas | Switzerland | unknown | unknown | aquaculture | individual | yes | natural reproduction | rarely used | probably yes | undecided | probably yes | adverse | ||
| Ameiurus | melas | UK | Italy | unknown | aquaculture | unknown | yes | natural reproduction | rarely used | unknown | unknown | ||||
| Ameiurus | melas | Yugoslavia | USA | 1905 | aquaculture | unknown | yes | natural reproduction | rarely used | unknown | unknown | ||||
| Ameiurus | natalis | Italy | unknown | 1906 | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | natalis | Mexico | USA | 1978 | aquaculture | fisheries | government | yes | both | widely used | yes | beneficial | yes | beneficial | |
| Ameiurus | nebulosus | Austria | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Canada | USA | unknown | diffused from other countries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Chile | USA | 1908 | fisheries | unknown | probably yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | China | America | 1984 | aquaculture | individual | no | rarely used | unknown | unknown | |||||
| Ameiurus | nebulosus | Czechoslovakia | USA | end of 1800s | angling/sport | aquaculture | fisheries | individual | yes | natural reproduction | no | no | |||
| Ameiurus | nebulosus | Finland | Germany | 1922, 1924 | angling/sport | fisheries | private sector | yes | natural reproduction | unknown | unknown | ||||
| Ameiurus | nebulosus | Former USSR | unknown | unknown | fisheries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | France | unknown | 1930, 1950 | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Germany | unknown | 1885 | aquaculture | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Hawaii | USA (California) | 1893 | unknown | unknown | no | unknown | unknown | ||||||
| Ameiurus | nebulosus | Hungary | Germany | 1902, 1904 | other pest control | aquaculture | fisheries | private sector | yes | natural reproduction | rarely used | yes | adverse | unknown | |
| Ameiurus | nebulosus | Ireland | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Italy | North America | 1900s | unknown | unknown | probably yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Netherlands | Belgium | 1900 | diffused from other countries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | New Zealand | USA (California) | 1877 | angling/sport | individual | yes | natural reproduction | probably no | unknown | |||||
| Ameiurus | nebulosus | Poland | Germany | historical | aquaculture | individual | yes | natural reproduction | rarely used | probably yes | adverse | probably yes | adverse | ||
| Ameiurus | nebulosus | Puerto Rico | USA | 1915, 1916, 1946 | angling/sport | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Romania | Eastern Europe | 1910 | diffused from other countries | unknown | yes | natural reproduction | probably no | no | |||||
| Ameiurus | nebulosus | Spain | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Turkey | North America | unknown | accidental | unknown | probably no | unknown | unknown | ||||||
| Ameiurus | nebulosus | UK | Italy | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Ameiurus | nebulosus | Viet Nam | USA probably | unknown | unknown | unknown | unknown | unknown | unknown | ||||||
| Ameiurus | nebulosus | Yugoslavia | unknown | unknown | aquaculture | unknown | yes | natural reproduction | unknown | unknown | |||||
| Anabas | ansorgii | Madagascar | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Anabas | testudineus | Indonesia (Irian Jaya) | unknown | unknown | unknown | unknown | yes | natural reproduction | unknown | unknown | |||||
| Anabas | testudineus | Papua New Guinea | Indonesia | 1985 | diffused from other countries | unknown | yes | natural reproduction | unknown | unknown | |||||
| Anabas | testudineus | Philippines | Malaysia | unknown | aquaculture | individual | yes | natural reproduction | widely used | unknown | probably yes | beneficial | |||
| Anabas | testudineus | USA | Southeast Asia | unknown | ornamental | unknown | no | unknown | unknown | ||||||
| Anchoa | compressa | Hawaii | USA | 1932 | bait | private sector | no | unknown | unknown | ||||||
| Ancistrus | spp. | Hawaii | unknown | 1980s | unknown | unknown | unknown | unknown | unknown | ||||||
| Anguilla | anguilla | Brazil | France | 1977, 1980 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Anguilla | anguilla | Eritrea | unknown | unknown | unknown | unknown | no | unknown | unknown | ||||||
| Anguilla | anguilla | Finland | France, Denmark, Sweden | 1960, 1970, 1989 | research | fisheries | government | yes | continuous restocking | unknown | yes | beneficial | |||
| Anguilla | anguilla | Indonesia | England, France, Denmark | 1992 | aquaculture | private sector | no | widely used | probably no | yes | beneficial | ||||
| Anguilla | anguilla | Iran | unknown | unknown | aquaculture | fisheries | accidental | unknown | yes | continuous restocking | rarely used | unknown | probably yes | beneficial | |
| Anguilla | anguilla | Israel | France | continual | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Anguilla | anguilla | Japan | France, Italy and England | 1964, 1969 | aquaculture | unknown | no | rarely used | unknown | unknown | |||||
| Anguilla | anguilla | Romania | Central Europe | 1886 | diffused from other countries | unknown | yes | continuous restocking | no | no | |||||
| Anguilla | anguilla | Taiwan Island (Prov. of China) | Europe | 1976 | aquaculture | unknown | no | unknown | unknown | ||||||
| Anguilla | anguilla | Turkey | unknown | unknown | aquaculture | fisheries | accidental | unknown | yes | continuous restocking | rarely used | unknown | probably yes | beneficial | |
| Anguilla | australis | Italy | New Zealand | 1975 | other reasons | unknown | probably yes | unknown | unknown | ||||||
| Anguilla | australis | Japan | New Zealand | 1975 | other reasons | unknown | probably yes | unknown | unknown | ||||||
| Anguilla | australis | USA | New Zealand | unknown | unknown | unknown | probably yes | continuous restocking | unknown | unknown | |||||
| Anguilla | japonica | Brazil | Japan | 1977 onwards | aquaculture | unknown | no |