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DCフィールド | 値 | 言語 |
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dc.contributor.author | Kubota, Shin | en |
dc.contributor.alternative | 久保田, 信 | ja |
dc.date.accessioned | 2013-09-02T07:45:07Z | - |
dc.date.available | 2013-09-02T07:45:07Z | - |
dc.date.issued | 2012-08 | - |
dc.identifier.issn | 0289-0003 | - |
dc.identifier.uri | http://hdl.handle.net/2433/178654 | - |
dc.description.abstract | Circadial spawning times of medusa of the bivalve-inhabiting hydrozoans Eugymnanthea japonica Kubota and Eutima japonica Uchida are confirmed to be morning (possibly sunrise) for the former species and night for the latter. Eugymnanthea, with small, short-lived, univoltine medusae, seems to have evolved from a form similar to Eutima japonica, with larger, longer-lived, multivoltine medusae; the morning spawning of medusae in Eugymnanthea may therefore be a newly evolved trait. Medusa release from polyps and spawning of medusae are not synchronous in Eugymnanthea japonica. This non-synchrony may represent an evolutionarily transitional state leading to the most advanced state, synchrony of these two reproductive events, as in certain other ephemeral hydrozoan medusae. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Zoological Society of Japan | en |
dc.rights | © 2012 Zoological Society of Japan | en |
dc.subject | bivalve-inhabiting hydrozoan | en |
dc.subject | spawning time | en |
dc.subject | ephemeral medusa | en |
dc.subject | medusa release | en |
dc.subject | transitional evolutionary state | en |
dc.subject.mesh | Aging | en |
dc.subject.mesh | Animals | en |
dc.subject.mesh | Biological Evolution | en |
dc.subject.mesh | Bivalvia/parasitology | en |
dc.subject.mesh | Female | en |
dc.subject.mesh | Hydrozoa/genetics | en |
dc.subject.mesh | Hydrozoa/physiology | en |
dc.subject.mesh | Ovum/physiology | en |
dc.subject.mesh | Reproduction/physiology | en |
dc.title | Evolutionary meaning of non-synchronous medusa release and spawning in the most advanced bivalve-inhabiting hydrozoan, Eugymnanthea japonica. | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA10545874 | - |
dc.identifier.jtitle | Zoological science | en |
dc.identifier.volume | 29 | - |
dc.identifier.issue | 8 | - |
dc.identifier.spage | 481 | - |
dc.identifier.epage | 483 | - |
dc.relation.doi | 10.2108/zsj.29.481 | - |
dc.textversion | publisher | - |
dc.identifier.pmid | 22873804 | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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