Larval Development and Metamorphosis of the Sea Star Luidia foliolata (Echinodermata : Asteroidea)
スポンサーリンク
概要
- 論文の詳細を見る
Spawning of Luidia foliolata in Barkley Sound, British Columbia, Canada, occurs in spring. Ova are transparent and about 150μm in diameter. The first cleavage occurs approximately 3hr after fertilization at ca. 10℃. The embryo develops into a bipinnaria after a wrinkled blastula stage. Metamorphosis takes place about 4 mo after fertilization, without the larva's passing through a brachiolaria stage. The full-grown bipinnaria is 2.5mm long and has five pairs of bipinnaria arms. At metamorphosis the larval part is absorbed into the asteroid rudiment. Juveniles are about 730μm in diameter. They have five arms, each bearing two pairs of tube-feet. The present observations show that L. foliolata undergoes a non-brachiolarian type of development, as do all species of Luidia previously studied.
- 日本動物分類学会の論文
- 2000-05-31
著者
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Komatsu Mieko
Department of Biology, Faculty of Science, Toyama University
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Komatsu M
Department Of Biology Faculty Of Science Toyama University
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Komatsu Mieko
Department Of Biology Faculty Of Science Toyama University
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Sewell Mary
Department of Zoology, University of Alberta
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Carson Sally
Department of Zoology, University of Alberta
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Chia Fu-Shiang
Department of Zoology, University of Alberta
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Carson Sally
Department Of Zoology University Of Alberta
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Chia Fu-shiang
Department Of Zoology University Of Alberta
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Sewell Mary
Department Of Zoology University Of Alberta
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