山口・岡山両県からのシオマネキ（スナガニ科）の新産地

• 白藤 淳一

  岡山大学農学部水系保全学研究室

• 鈴木田 亘平

  岡山大学農学部水系保全学研究室

• 福田 宏

  岡山大学農学部水系保全学研究室

書誌事項

タイトル別名

• New Localities of Uca arcuata(Ocypodidae) in Yamaguchi and Okayama Prefectures, Japan.

抄録

Although the fiddler crab Uca arcuata (De Haan, 1833) has been widely recorded from Kii Peninsula, central Japan to Okinawa Inland, the local populations of this species have seriously declined recently. In the Red Data Book of Japanese marine and freshwater benthic animals in 1995, this species was listed in “RARE” category, which means the species with small populations and at risk of extinction. Our recent investigations (2000-2001) recorded small populations of this species in the estuaries of the Koya and Imazu rivers (Yamaguchi Prefecture) and the Nagae River (Okayama Prefecture) in Chûgoku District. In the Koya River, the average density was 3.7 individuals per m², and the estimated number of individuals inhabited was 65100. These numbers indicate that the population size in this locality was as large as that of the Hikawa River in the Ariake Inland Sea, Kyûshû, western Japan.

収録刊行物

• 日本ベントス学会誌

  日本ベントス学会誌 57 38-42, 2002

  日本ベントス学会

キーワード

• brackish water
• conservation
• distribution
• estuary
• fiddler crab
• habitat
• Ocypodidae
• Seto Inland Sea
• Uca arcuata

詳細情報

• CRID: 1390001204471610624
• NII論文ID: 130000723723
• DOI: 10.5179/benthos.57.38
• ISSN: 1883891X
• ISSN: 1345112X
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可