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Title: コノハクラゲ(ヒドロ虫綱, 軟クラゲ目)のポリプの本州中部日本海側沿岸とその沖合いの島嶼への新たな出現
Other Titles: New Occurrence of the hydroid of Eutimajaponica (Hydrozoa, Leptomedusae) in the middle coasts of Honshu facing the Sea of Japan and its offshore island
Authors: 小林, 亜玲  KAKEN_name
五箇, 公一  KAKEN_name
久保田, 信  kyouindb  KAKEN_id
Author's alias: Kobayashi, Arei
Goka, Koichi
Kubota, Shin
Keywords: Bivalve-inhabiting hydrozoan
middle Honshu
the Sea of Japan
Eutima japonica
Mytilus galloprovincialis
Issue Date: 20-Dec-2007
Publisher: 日本生物地理学会
Journal title: 日本生物地理学会会報
Volume: 62
Start page: 101
End page: 104
Abstract: Hydroids of Eutima japonica Uchida, associating with a blue mussel Mytilus galloprovinciahs, were recently found on the coast of the Sea of Japan in Ishikawa and Niigata Prefectures, middle Honshu in 2003-2007 after the first occurrence in the southern Honshu in 2002 (Kobayashi et al., 2004). This followed an absence of records of this hydroid in Honshu and its offshore islands during the years of 1977-1998.
本州と九州の日本海側沿岸およびその沖合い島峡で1977-1998年にポリプの分布がみられなかったコノバクラゲEutimajaponica Uchidaが, 2002年に島根県沿岸2地点への出現(小林他, 2004)を受けて,今回2003-2007年に日本海側本州沿岸とその沖合い島峡および北海道南部沿岸でムラサキイガイと共生する本種のポリプの分布調査を実施した.その結果,本種は依然として島根県沿岸と北海道南部沿岸に分布するが,本州中部沿岸の2地点(石川県羽咋郡志賀町と羽咋市滝町)とその沖合い島嶼の1地点(新潟県佐渡島達者)に新たに出現した.
Rights: © 2007 日本生物地理学会
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