| フルテキストURL | C020057000201.pdf ( 2.1MB ) 公開日 2010-04-28
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| タイトル | Distribution and habitat preferences of sea urchin species in Shirikawa Bay, Yamaguchi, during the period from 2005 to 2007 |
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| 作成者 | Kitazawa, Chisato
Kawasaki, Shinichiro
Nishimura, Hajime
Nakano, Michihiro
Yamaguchi, Tadashi
Yamanaka, Akira
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| 作成者ヨミ | キタザワ, チサト
カワサキ, シンイチロウ
ニシムラ, ハジメ
ナカノ, ミチヒロ
ヤマグチ, タダシ
ヤマナカ, アキラ
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| 作成者別表記 | 北沢, 千里
山中, 明
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| 作成者所属 | 山口大学教育学部
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| 内容記述（抄録等） | We studied habitats of sea urchin species in Shirkawa Bay in Yamaguchi City, Yamaguchi Prefecture, during the period from June 2005 to June 2007. Nine species were identified from Shirikawa Bay, which included 6 families. Several hundreds of Scaphechinus mirabilis appeared in a sandy beach in only early spring, while some regular sea urchin species, the mature Hemicentrotus pulcherrimus and the smaller Anthocidaris crassispine than ones in a shore out of the bay, were found often under the rocks in a shore in the bay through these survey periods. Additionally, Pseudocentrotus depressus were always found in the subtidal zone in a shore in/out of the bay. In a muddy beach, the only mature Temnopleurus toreumaticus inhabited. These results suggested that each sea urchin species in Shirikawa Bay segregates the own habitat and that S. mirabilis may change their habitats for spawning. We also investigated the breeding seasons of H. pulcherrimus and T. toreumaticus in this area by chemical induction of spawning. H. pulcherrimus spawned mature gametes from the middle of December to the middle of April and T. toreumaticus did from June to the middle of November. These results indicate the possibility that the provision of mature gametes by these species for a whole year contributes to the developmental biology with sea urchins in this area.
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| 本文言語 | eng
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| 著者キーワード | sea urchins
Shirikawa Bay
habitat
breading season
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| 主題 | 教育・教育学
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| 資料タイプ | text |
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| ファイル形式 | application/pdf |
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| 出版者 | 山口大学教育学部
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| 出版者ヨミ | ヤマグチ ダイガク キョウイクガクブ
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| NII資料タイプ | 紀要論文 |
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| ISSN | 1349-810X
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| NCID | AN00243950
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| 学内刊行物(紀要等) | 山口大学教育学部研究論叢（第2部） |
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| 掲載誌名 | 研究論叢. 自然科学 |
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| 掲載誌名別表記 | Bulletin of the Faculty of Education, Yamaguchi University. Natural science |
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| 巻 | 57 |
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| 号 | 2 |
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| 開始ページ | 95 |
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| 終了ページ | 105 |
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| 発行日 | 2008-01-31 |
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| 著者版/出版社版 | 出版社版 |
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| リポジトリID | C020057000201 |
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| 地域区分 | 山口大学
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| URI | http://www.lib.yamaguchi-u.ac.jp/yunoca/handle/C020057000201 |
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