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Title: 利尻町ウニ種苗生産センターの屋外水槽から見つかったエゾナミタナイス(甲殻亜門タナイス目)
Other Titles: Zeuxo ezoensis (Crustacea: Tanaidacea) from an Open-air Pool on Rishiri Island
Authors: 角井, 敬知1 Browse this author
宗像, みずほ2 Browse this author
冨岡, 森理3 Browse this author
Authors(alt): Kakui, Keiichi1
Munakata, Mizuho2
Tomioka, Shinri3
Issue Date: Mar-2021
Publisher: 利尻町立博物館
Journal Title: 利尻研究
Journal Title(alt): Rishiri Studies
Volume: 40
Start Page: 21
End Page: 24
Abstract: The tanaidid species Zeuxo ezoensis Okamoto et al., 2020 has previously been reported from among brown and red algae in the intertidal zone at Oshoro and on Rishiri, Rebun and Okushiri Islands, Hokkaido, Japan. Here we first report Z. ezoensis from an artificial environment, an open-air pool in the Rishiri Sea Urchin Seed Production Center on Rishiri Island. The pool is used for the temporary storage of laminarian algae, and tanaidaceans may have entered with the algae. Our sample collected in October 2020 contained famles with marsupium scars, indicating that Z. ezoensis reproduces in the pool. The sample also contained mail individuals that are larger than the largest male collected in fall 2011 at Oshoro. This occurrence of large males in the pool may be related to the absence of fish, which are known to prey on Z. ezoensis.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 角井 敬知

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