Palaebiological study of 'living fossils' (1991)

“活化石”的古生物学研究(1991)

基本信息

  • 批准号:
    02402017
  • 负责人:
  • 金额:
    $ 2.5万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
  • 财政年份:
    1990
  • 资助国家:
    日本
  • 起止时间:
    1990 至 1991
  • 项目状态:
    已结题

项目摘要

1. Abe and Tsukagoshi visited Australia in July to attend and preset papers at the 11th International Symposium on Ostracods. And they discussed on a living ostracod, Manawa with Dr. Swanson who have discovered living specimens of Manawa from off Newzealand. Abe investigated functional morphology of the carapace and appendages of myodoeopid ostracods through the time from Palaeozoic to Recent. Tsukagoshi noticed the segmentation in the soft parts of some podoeopid ostracods, and studied the evolution of ostracods in general.2. Hayami and Kase found a rich molluscan assemblage in several submarine caves in Ryukyu, and its morphological and ecological uniqueness was examined. This fauna contains 'living fossil' genera, Neritopsis and Pycnodonte, and numerous minute molluscs which are surprisingly similar to deep-sea fauna in generic assemblage and developmental strategy.3. Oji collected living crinoids from Suruga Bay and cultured them, obtaining much information about their ecology, functional morphology and regeneration of arms after the autotomy.4. Yoshida examined plate tectonics in the South Pacific region, providing a basic knowledge to investigate the process how the present-day distribution patterns of the living fossils were made through a geologic time.5. Abe studied mating behaviour of ostracods using VTR, and found that the morphological features of appendages are better described in the context of premating or courtship behaviour of the species. Similar approach will be applied to Manawa to understand the evolution of mating behaviour of ostracods.--- Various important and useful knowledge has been obtained about 'living fossils' in the South Pacific region. Molecular biological aspects will be examined hereafter, to clarify the process how and why these living fossils have kept their morphology unchanged through a long geological time.
1.今年7月,安倍和Tsukagoshi访问了澳大利亚,出席了第11届介形类国际研讨会并预置了论文。他们与斯旺森博士讨论了一种活的介形虫--马纳瓦,斯旺森博士在新西兰海域发现了马纳瓦的活标本。ABE研究了从古生代到现代的介形类介形类甲壳和附肢的功能形态。Tsukagoshi注意到了一些足足类介形类软体部分的切分,并对介形类的进化进行了总体研究。Hayami和Kase在琉球的几个海底洞穴中发现了丰富的软体动物组合,并对其形态和生态独特性进行了检验。该动物群中含有活化石属Neritopsis和Pycnodonte,以及大量的微小软体动物,它们在属的组合和发展策略上与深海动物惊人地相似。Oji从Suruga Bay采集了活的海百合,并对其进行了培养,获得了关于它们的生态、功能形态和自体切除后手臂再生的许多信息。吉田研究了南太平洋地区的板块构造,为研究活化石的现代分布模式是如何通过地质时代形成的过程提供了基础知识。ABE用录像机研究了介形类的交配行为,发现附肢的形态特征在物种的捕食或求偶行为的背景下得到了更好的描述。类似的方法将应用于马纳瓦,以了解介形类动物交配行为的演变。-关于南太平洋地区的“活化石”,已经获得了各种重要和有用的知识。此后将对分子生物学方面进行研究,以阐明这些活化石如何以及为什么在漫长的地质时间中保持其形态不变的过程。

项目成果

期刊论文数量(30)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Hayami, I.: "Living and fossil scallop shells as airfoils : an experimental study." Paleobiology. 17(1). 1-18 (1991)
Hayami, I.:“活扇贝壳和化石扇贝壳作为翼型:一项实验研究。”
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Oji,T.: "Dimorphism and geographic distribution of two phenotypes of a west Atlantic stalked crinoid Endoxocrinus parrae (Gervais)." Transactions and Proceedings of the Palaeontological Society of Japan,New Series. No.159. 603-606 (1990)
Oji,T.:“西大西洋有柄海百合 Endoxocrinus parrae (Gervais) 两种表型的二态性和地理分布。”
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Hayami,I.: "Airfoil analogy of living and fossil scallop shellsan experimental study." Paleobiology. (1991)
Hayami,I.:“活扇贝壳和化石扇贝壳的翼型类比实验研究。”
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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ABE Katsumi的其他文献

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