Tortanus derjugini Smirnov (Copepoda: Calanoida) from the Ariake Sea, western Japan, with notes on the zoogeography of brackish-water calanoid copepods in East Asia

日本プランクトン学会報 42 巻 2 号 147-162 頁 1995-12-25 発行
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ファイル情報(添付)
タイトル ( eng )
Tortanus derjugini Smirnov (Copepoda: Calanoida) from the Ariake Sea, western Japan, with notes on the zoogeography of brackish-water calanoid copepods in East Asia
タイトル ( jpn )
有明海産カラヌス目カイアシ類Tortanus derjuginiおよび東アジアにおける汽水性カイアシ類の地理分布
作成者
Lian Guang-shan
収録物名
日本プランクトン学会報
42
2
開始ページ 147
終了ページ 162
抄録
Tortanus (Eutortanus) derjugini Smirnov is redescribed from brackish regions of the Ariake Sea, western Japan. The copepod is presumed to be an Asian continental relict because of its exclusive occurrence in Asian continental waters and the Ariake Sea in Japan. A comparison between specimens from Japanese, Korean and Chinese waters is made, and some differences were detected in the anal somite and caudal rami of females between Japanese and Korean specimens; the length/width ratio of the anal somite and the ratio of the right caudal ramus to the left one are significantly lower in the former. These differences indicate that the isolation of the Ariake Sea population from the Asian continental populations since the last transgression (ca. 6,000-10,000 years ago) has caused no great morphological variation. Zoogeography of brackish-water calanoid copepods including this species in East Asia is discussed. There are three types of distribution patterns that are supposed to be related to geological events occurring during the Cenozoic era.
著者キーワード
Tortanus (Eutortanus) derjugini
Ariake Sea
East Asia
brackish-water
continental relict
NDC分類
動物学 [ 480 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
日本プランクトン学会
発行日 1995-12-25
権利情報
Copyright (c) 1995 The Plankton Society of Japan
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0387-8961
[NCID] AN00197015