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[Photo]: With picture
Higher Taxa Scientific Name
[Common name]
Legal control Distribution in Japan
Poeciliidae, Cyprinodontiformes, Actinopterygii Gambusia affinis   [Photo]
  [Mosquitofish]
Yes Fukushima Pref. and southern part of Honshu, Shikoku, Kyushu, Okinawa, and Ogasawara ...
Poeciliidae, Cyprinodontiformes, Actinopterygii Poecilia reticulata
  [Guppy]
Hot springs in Hokkaido(Onneto Falls: declared eradication in 2019), Fukushima, Nagan ...
Poeciliidae, Cyprinodontiformes, Actinopterygii Poecilia sphenops
  [Molly]
Hokkaido
Poeciliidae, Cyprinodontiformes, Actinopterygii Xiphophorus hellerii
  [Green swordtail]
Yamanashi Pref., Okinawajima, and Kumejima Islands.
Poeciliidae, Cyprinodontiformes, Actinopterygii Xiphophorus maculatus
  [Moon fish]
Okinawajima Island (established or not is unclear).
Amblycipitidae, Siluriformes, Actinopterygii Liobagrus reini   [Photo]
  [Akaza]
Iwate Pref.
Bagridae, Siluriformes, Actinopterygii Pseudobagrus nudiceps   [Photo]
  [Gigi]
Akita, Niigata, Fukui, Yamanashi, Aichi, Gifu, Mie, and Kumamoto Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Abbottina rivularis
  [Chinese false gudgeon]
Miyagi and Niigata Prefs., Kanto District, and Biwako Lake (Shiga Pref.)
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus cyanostigma
  [Striped bitterling]
Toyama, Okayama, and Kumamoto Prefs., and Shikoku Is.
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus macropterus Lake Kasumigaura and Lake Kitaura, Ibaraki Pref. Reservoirs along the Tone River incl ...
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus rhombeus   [Photo]
  [Kanehira]
Miyagi and Ibaraki Prefs (Kasumigaura Lake River System).
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus tabira erythropterus   [Photo]
  [Red tabira bitterling]
Aomori Pref.
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus tabira tabira   [Photo]
  [ ]
Aomori and Shimane Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Acheilognathus typus   [Photo]
  [Zenitanago]
Nagano and Shizuoka Pref. (Suwako Lake and Tenryugawa River System).
Cyprinidae, Cypriniformes, Actinopterygii Aristichthys nobilis
  [Striped bighead]
Established in Kasumigaura and Kitaura Lakes and Tonegawa and Edogawa river systems. ...
Cyprinidae, Cypriniformes, Actinopterygii Biwia zezera
  [Zezera]
Kanto District, Niigata Pref., and NW Kyushu.
Cyprinidae, Cypriniformes, Actinopterygii Carassius auratus grandoculis   [Photo]
  [Nigoro-buna]
Toyama Pref.
Cyprinidae, Cypriniformes, Actinopterygii Carassius auratus langsdorfii   [Photo]
  [Gin-buna]
Okinawa
Cyprinidae, Cypriniformes, Actinopterygii Carassius cuvieri   [Photo]
  [ Gengoro-buna]
Almost entire Japan
Cyprinidae, Cypriniformes, Actinopterygii Ctenopharyngodon idella
  [Grass carp]
Established in Tonegawa and Edogawa River System, Kasumigaura and Kitaura Lake. Despi ...
Cyprinidae, Cypriniformes, Actinopterygii Cyprinus carpio   [Photo]
  [Common carp]
Hybridization between native and introduced populations should occurred given that ar ...
Cyprinidae, Cypriniformes, Actinopterygii Danio albolineatus
  [Pearl danio]
Reservoir pond in N Okinawajima Is.
Cyprinidae, Cypriniformes, Actinopterygii Danio rerio
  [Zebrafish]
Reservoir pond in N Okinawajima Is.
Cyprinidae, Cypriniformes, Actinopterygii Gnathopogon caerulescens
  [Honmoroko]
Okutamako (Tokyo), Yamanakako (Yamanashi), Suwako (Nagano), and Yuharako (Okayama) La ...
Cyprinidae, Cypriniformes, Actinopterygii Gnathopogon elongatus elongatus   [Photo]
  [Tamoroko]
Tohoku District and Kyushu.
Cyprinidae, Cypriniformes, Actinopterygii Hemibarbus barbus   [Photo]
  [Barbel steed]
Shizuoka Pref.
Cyprinidae, Cypriniformes, Actinopterygii Hemibarbus longirostris
  [Zunaga-nigoi]
Nother side of Chugoku District and Shizuoka Pref (Abekawa and Warashinagawa Rivers). ...
Cyprinidae, Cypriniformes, Actinopterygii Hypophthalmichthys molitrix   [Photo]
  [Silver bighead]
Established in Tone-Edo River System and Yodogawa River System. However, constantly r ...
Cyprinidae, Cypriniformes, Actinopterygii Ischikauia steenackeri   [Photo]
  [Wataka]
Kanto and Hokuriku Districts, Nara, Okayama, Shimane, Yamaguchi, and Fukuoka Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Mylopharyngodon piceus
  [Black carp]
Breed at Lake Kasumigaura and Lake kitaura in Ibaraki Pref., Tonegawa and Edogawa Riv ...
Cyprinidae, Cypriniformes, Actinopterygii Opsariichthys uncirostris
  [Three-lips]
Kanto, Chugoku and Kyushu District, and the Nobi Plain.
Cyprinidae, Cypriniformes, Actinopterygii Pseudogobio esocinus   [Photo]
  [Kamatsuka]
Aomori, Shizuoka (C to E), and Hyogo (Maruyamagawa River) Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Pseudorasbora parva   [Photo]
  [Stone moroko]
Hokkaido, Tohoku District, and Okinawa Pref. In the native range in Japan, introducti ...
Cyprinidae, Cypriniformes, Actinopterygii Pseudorasbora pumila pumila
  [Moroco]
Hokkaido
Cyprinidae, Cypriniformes, Actinopterygii Pungtungia herzi   [Photo]
  [Mugitsuku]
Tokyo, Gumma, and Chiba Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Rhodeus ocellatus ocellatus   [Photo]
  [Rosy bitterling]
Yes
Cyprinidae, Cypriniformes, Actinopterygii Sarcocheilichthys variegatus microoculus   [Photo]
  [Biwa-higai]
Tohoku, Hokuriku, and Kanto District, Yamanashi, Nagano, Kochi, and Fukuoka Prefs.
Cyprinidae, Cypriniformes, Actinopterygii Squalidus biwae
  [Sugomoroko]
The Kanto Plain, Shizuoka Pref., and Kochi Pref.
Cyprinidae, Cypriniformes, Actinopterygii Squalidus gracilis gracilis   [Photo]
  [Itomoroko]
Kanagawa Pref. (Sagami River) and Shizuoka Pref.
Cyprinidae, Cypriniformes, Actinopterygii Tanakia lanceolata   [Photo]
  [Yari-tanago]
C & S Chiba Pref.
Cyprinidae, Cypriniformes, Actinopterygii Tanakia limbata   [Photo]
  [Oily bitterling]
Shizuoka Pref.
Cyprinidae, Cypriniformes, Actinopterygii Tinca tinca
  [Tench]
Not established in Japan, despite an introduction to Saitama Pref.
Cyprinidae, Cypriniformes, Actinopterygii Zacco platypus   [Photo]
  [Freshwater minnow]
Tohoku District, Pacific side of Shikoku, Dogo (Oki Islands), Nakadorijima Is. (Goto ...
Cyprinidae, Cypriniformes, Actinopterygii Zacco sieboldii   [Photo]
  [Dark chub]
Kanto District
Cyprinidae, Cypriniformes, Actinopterygii Zacco temminckii
  [Dark chub]
Miyagi Pref. and Kanto District.
Cobitidae, Cypriniformes, Actinopterygii Cobitis biwae   [Photo]
  [Japanese striped loach]
Chuzenjiko Lake (Tochigi Pref.) and eastern Shizuoka Pref.
Cobitidae, Cypriniformes, Actinopterygii Cobitis sp. “L”
  [Suji-shima-dojou large type]
Fuefuki River (Yamanashi Pref.) and Okutama Lake (Tokyo).
Balitoridae, Cypriniformes, Actinopterygii Lefua nikkonis
  [Stone loach]
Aomori Pref.
Cobitidae, Cypriniformes, Actinopterygii Misgurnus anguillicaudatus   [Photo]
  [Oriental weatherfish]
Populations imported from China and South Korea may escape and be established in wide ...
Cobitidae, Cypriniformes, Actinopterygii Noemacheilus barbatulus toni   [Photo]
  [Stone loach]
SW Hokkaido, Miyagi and Fukushima Prefs.
Cobitidae, Cypriniformes, Actinopterygii Paramisgurnus dabryanus
  [Kara-dojou]
Yes Miyagi, Tochigi, Ibaraki, Saitama, Shizuoka, Nagano, Fukui, Mie, Shiga, Nara, Kagawa ...
Plecoglossidae, Osmeriformes, Actinopterygii Plecoglossus altivelis altivelis   [Photo]
  [Ayu sweetfish]
Ayu from Biwako Lake (Shiga Pref.) is released to almost entire Japan.
Plecoglossidae, Osmeriformes, Actinopterygii Plecoglossus altivelis ryukyuensis
  [Ryukyu-ayu-fish]
Okinawajima Is. (Native population in this island was already extinct).
Osmeridae, Osmeriformes, Actinopterygii Hypomesus nipponensis
  [Japanese smelt]
Lakes and dam-lakes in almost entire Japan except small islands.
Salmonidae, Salmoniformes, Actinopterygii Coregonus lavaretus maraena
  [Common whitefish]
Released for ports fishing in Nagano Pref. Not established in Japan.
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus keta   [Photo]
  [Chum salmon]
Wide area of Hokkaido and Honshu such as Kuriyama River (Chiba), Tamagawa River (Toky ...
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus kisutch
  [Silver salmon]
Not established in Japan. Sometimes occur in Hokkaido.
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus masou ishikawai   [Photo]
  [Cherry salmon]
Rerealsed to wide area. Details unknown.
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus masou masou   [Photo]
  [Cherry salmon]
Rerealsed to wide area. Details unknown.
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus masou rhodurus
  [Biwamasu]
Chuzenjiko (Tochigi Pref.) and Kizaki (Nagano Pref.) Lakes. In Chuzenjiko Lake, hybri ...
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus mykiss
  [Rainbow trout]
Hokkaido, Tokyo, Wakayama (Kumanogawa River System), and Chugoku District
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus nerka
  [Sockeye salmon]
Landlocked form (kokanee): Hokkaido (Shikotsuko and Toyako Lakes), Aomori (Towadako L ...
Salmonidae, Salmoniformes, Actinopterygii Oncorhynchus tschawytscha
  [King salmon]
Not established in Japan. Sometimes occur in Hokkaido.
Salmonidae, Salmoniformes, Actinopterygii Salmo trutta
  [Brown trout]
Yes Hokkaido, Akita, Tochigi, Kanagawa (Ashinoko Lake), Yamanashi, and Nagano, Toyama (Ku ...
Salmonidae, Salmoniformes, Actinopterygii Salvelinus fontinalis
  [Brook trout]
Hokkaido, Tochigi, and Nagano Prefs.
Salmonidae, Salmoniformes, Actinopterygii Salvelinus leucomaenis subspp.    [Photo]
  [Chum salmon]
Released to almost entire Japan.
Salmonidae, Salmoniformes, Actinopterygii Salvelinus namaycush
  [Lake trout]
Chuzenjiko Lake, Tochigi Pref.
Cichlidae, Perciformes, Actinopterygii Amatitlania nigrofasciata
  [Convict cichlid]
Okinawajima Is. Canals in Naha City and Haebaru Dam. Abundant in Haebaru Dam.
Cichlidae, Perciformes, Actinopterygii Oreochromis mossambicus
  [Mozambique tilapia]
Hokkaido, mainland of Kagoshima Pref., Okinawajima Is., Ishigakijima Is., and Ogasawa ...
Cichlidae, Perciformes, Actinopterygii Oreochromis niloticus
  [Nile tilapia]
Yes Hokkaido (Onneto Falls: declared eradication in 2019), Kagoshima Pref. (Ikedako Lake) ...
Cichlidae, Perciformes, Actinopterygii Otopharynx lithobates Haebaru Dam, Okinawajima Is.
Cichlidae, Perciformes, Actinopterygii Tilapia zillii
  [Redbelly tilapia]
Shiga, Kagoshima, and Okinawa Prefs. In Shiga and Kagoshima, occur in water body with ...
Percichthyidae, Perciformes, Actinopterygii Coreoperca kawamebari
  [Oyanirami]
Tokyo, Aichi, and Shiga Prefs.
Osphronemidae, Perciformes, Actinopterygii Macropodus ocellatus
  [Paradise fish]
Niigata, Ibaraki, Nagano, Aichi, and Okayama Prefs. This species was established in w ...
Osphronemidae, Perciformes, Actinopterygii Macropodus opercularis
  [Paradise fish]
Okinoerabujima Is. (Amami Islands) and Okinawajima Is. Whether the Okinawajima popula ...
Centrarchidae, Perciformes, Actinopterygii Lepomis macrochirus   [Photo]
  [Bluegill]
Yes Almost entire Japan
Centrarchidae, Perciformes, Actinopterygii Micropterus dolomieu   [Photo]
  [Smallmouth bass]
Yes Fukushima, Tochigi, Nagano, Shiga, Nara
Centrarchidae, Perciformes, Actinopterygii Micropterus salmoides   [Photo]
  [Largemouth bass]
Yes Almost entire Japan, include several islands
Lateolabracidae, Perciformes, Actinopterygii Lateolabrax sp.
  [Continental seabass]
Pacific coastal water body of Fukushima Pref. to Shikoku Is., Seto Inland Sea, Akita ...
Channidae, Perciformes, Actinopterygii Channa argus   [Photo]
  [Snakehead]
Almost entire Japan mainland.
Channidae, Perciformes, Actinopterygii Channa asiatica
  [Small snakehead]
Yes Osaka Pref., Ishigakijima Is. and Okinawa Is. in Okinawa Pref.
Channidae, Perciformes, Actinopterygii Channa maculata
  [Blotched snakehead]
Yes Wakayama and Hyogo Prefs., and Ishigakijima Is., Sakishima Islands, Okinawa Pref.
Ambassidae, Perciformes, Actinopterygii Pseudambassis ranga
  [Indian glassy fish]
Habaru Dam and Kokuba River, Okinawajima Is.
Gobiidae, Perciformes, Actinopterygii Rhinogobius kurodai   [Photo]
  [Amur goby (orange type)]
Details unknown. In some region (e.g., Tokushima Pref.), introduced population threat ...
Gobiidae, Perciformes, Actinopterygii Tridentiger brevispinis   [Photo]
  [Numachichibu]
Okutamako (Tokyo), Ashinoko (Kanagawa), Fuji Five Lakes (Yamanashi), Horaiko (Aichi), ...
Synbranchidae, Synbranchiformes, Actinopterygii Monopterus albus
  [Swamp eel]
Tokyo, Ibaraki, Kanagawa, Shizuoka, Aichi, Mie, Wakayama, Kyoto, Nara, Osaka, Tokushi ...
Adrianichthyidae, Beloniformes, Actinopterygii Oryzias latipes   [Photo]
  [Medaka]
Established in Hokkaido. DNA analyses suggested that artificial introduction also occ ...
Atherinopsidae, Atheriniformes, Actinopterygii Odontesthes bonariensis   [Photo]
  [Argentinian silverside]
Tanzawako (Kanagawa), Kasumigaura and Kitaura (Ibaraki) Lakes.
Gasterosteidae, Gasterosteiformes, Actinopterygii Gasterosteus cf. microcephalus
  [Hariyo]
Gifu (introduced from Shiga Pref.) and Hyogo Prefs.
Ictaluridae, Siluriformes, Actinopterygii Ictalurus punctatus
  [Channel catfish]
Yes Tonegawa River System, Kasumigaura, Kitaura, and Biwako Lakes, Shimane Pref, Fukush ...
Bagridae, Siluriformes, Actinopterygii Tachysurus fulvidraco Yes Reservoirs along the Tone River including Lake Kasumigaura
Siluridae, Siluriformes, Actinopterygii Silurus asotus
  [Amur catfish]
Almost entire Japan mainland without natural population.
Clariidae, Siluriformes, Actinopterygii Clarias fuscus
  [Whitespotted clarias]
Okinawajima and Ishigakijima Islands, Ryukyu Archipelago.
Loricariidae, Siluriformes, Actinopterygii Liposarcus disjunctivus
  [Suckermouth armored catfishes]
Okinawajima Is.
Clariidae, Siluriformes, Actinopterygii Clarias batrachus
  [walking catfish]
Okinawajima Island.
Higher Taxa Common name [Scientific Name] Legal control Distribution in Japan

Mammals | Birds | Reptiles | Amphibians | Fishes | Insects | Invertebrates (except insects) | Plants