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Cambaroides japonicus, also known as Japanese crayfish (ニホンザリガニ, Nihon zarigani), is a species of crayfish endemic to Japan. They are small in size (6 cm) and grayish in color. Its front claws are much weaker than the American crayfish, which is an invasive species in Japan. The Japanese crayfish needs low temperature and high water purity, so they live in upper streams of rivers or lakes in highland regions. The distribution of Japanese crayfish comprises Hokkaidō and northern Tōhoku (the northern area of Honshū).

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rdfs:label
  • Cambaroides japonicus (en)
  • 일본가재 (ko)
  • ニホンザリガニ (ja)
  • 日本黑螯虾 (zh)
rdfs:comment
  • 일본가재는 가재속의 절지동물로, 일본의 고유종이다. (ko)
  • ニホンザリガニ（日本蝲蛄（蜊蛄・躄蟹）、Cambaroides japonicus）は、十脚目・アジアザリガニ科・アジアザリガニ属に属する、ザリガニの1種である。単にザリガニ、あるいはヤマトザリガニとも呼ぶ。 日本の固有種で、北海道と北東北にのみ住む。日本に住む3種のザリガニのうち唯一の在来種であり、秋田県・大館市にある生息地が、国の天然記念物に指定されている。 成体の体長は50–60mmほど、稀に70mmに達するが、アメリカザリガニよりは小さい。体色は茶褐色で、アメリカザリガニに比べて体や脚が太く、ずんぐりしている。 (ja)
  • 日本黑螯蝦（學名：Cambaroides japonicus；日語：ニホンザリガニ）是擬螯蝦屬下的一種螯蝦，原產於日本北部。它是一種小型螯蝦，體長一般在50–60mm，甲殼呈灰色。由於受到來自美國的入侵物種信號小龍蝦的威脅，日本環境省將其列為易危物種。 (zh)
  • Cambaroides japonicus, also known as Japanese crayfish (ニホンザリガニ, Nihon zarigani), is a species of crayfish endemic to Japan. They are small in size (6 cm) and grayish in color. Its front claws are much weaker than the American crayfish, which is an invasive species in Japan. The Japanese crayfish needs low temperature and high water purity, so they live in upper streams of rivers or lakes in highland regions. The distribution of Japanese crayfish comprises Hokkaidō and northern Tōhoku (the northern area of Honshū). (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Cambaroides_japonicus.jpg
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  • (en)
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  • Cambaroides (en)
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  • japonicus (en)
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  • DD (en)
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  • IUCN3.1 (en)
has abstract
  • Cambaroides japonicus, also known as Japanese crayfish (ニホンザリガニ, Nihon zarigani), is a species of crayfish endemic to Japan. They are small in size (6 cm) and grayish in color. Its front claws are much weaker than the American crayfish, which is an invasive species in Japan. The Japanese crayfish needs low temperature and high water purity, so they live in upper streams of rivers or lakes in highland regions. The distribution of Japanese crayfish comprises Hokkaidō and northern Tōhoku (the northern area of Honshū). The Environmental Agency (now Ministry of Environment) of Japan added it as a vulnerable species (IUCN category) to the Red Data List in 2000. It is thought that the causes of its decrease are corruption of water quality and the spread of the American crayfish Pacifastacus leniusculus, which was imported in the 20th century and has steadily proliferated in northern Japan. Some suspect that this American crayfish carries some disease, such as the crayfish plague known in Europe, that eliminates endemic crayfish. (en)
  • 일본가재는 가재속의 절지동물로, 일본의 고유종이다. (ko)
  • ニホンザリガニ（日本蝲蛄（蜊蛄・躄蟹）、Cambaroides japonicus）は、十脚目・アジアザリガニ科・アジアザリガニ属に属する、ザリガニの1種である。単にザリガニ、あるいはヤマトザリガニとも呼ぶ。 日本の固有種で、北海道と北東北にのみ住む。日本に住む3種のザリガニのうち唯一の在来種であり、秋田県・大館市にある生息地が、国の天然記念物に指定されている。 成体の体長は50–60mmほど、稀に70mmに達するが、アメリカザリガニよりは小さい。体色は茶褐色で、アメリカザリガニに比べて体や脚が太く、ずんぐりしている。 (ja)
  • 日本黑螯蝦（學名：Cambaroides japonicus；日語：ニホンザリガニ）是擬螯蝦屬下的一種螯蝦，原產於日本北部。它是一種小型螯蝦，體長一般在50–60mm，甲殼呈灰色。由於受到來自美國的入侵物種信號小龍蝦的威脅，日本環境省將其列為易危物種。 (zh)
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