National Institute for Environmental Studies, Japan NIES Invasive Species of Japan Japanese | English
  1. Invasive Species of Japan Home >
  2. Fishes
Fishes Go to Alert List

Mammals | Birds | Reptiles | Amphibians | Fishes | Insects | Invertebrates (except insects) | Plants
[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   [Photo]
  [Guppy]
Hot springs in Hokkaido, Fukushima, Nagano, Shizuoka, Okayama, Oita, and Kagoshima Pr ...
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   [Photo] Lake Kasumigaura and Lake Kitaura, Ibaraki Pref.
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   [Photo]
  [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 Kagoshima Pref. (Ikedako Lake), Okinawa, Ogasawara, etc.
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 2013-11-11 updated
  [Channel catfish]
Yes Tonegawa River System, Kasumigaura, Kitaura, and Biwako Lakes, Shimane Pref, Fukush ...
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