Life history strategies of modern and fossil molluscs.

现代软体动物和化石软体动物的生活史策略。

• 批准号: 63540622
• 负责人: TANABE Kazushige
• 金额: $ 1.22万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63540622/
• 关键词: Mollusca; Bivalvia; Cephalopoda; Development; Life history; Absolute growth; Functional Morphology; Evolution; アンモナイト類; 原殻; 胚殻; 成長線; 年輪; 内助; 初期生活史; 胚発生モデル; 成長率; SEM

Aspects on life history strategies in modern and fossil molluscs were considered in this project, with special reference to the early development, absolute shell growth and functional morpholog in the Bivalvia and the Cephalopoda. The results of this study are summarized as below.(1) Developmental types and juvenile mortality rates were estimated for several species of Limopsis, Glycymeris and Venericardia (Bivalvia), on the basis of prodissoconch morphology and morpnometry of well-preserved juvenile shells from the Plio-pleistocene deposits in the Pacific regions of southwest Japan. (by Tanabe)(2) Absolute shell growth patterns and aging in selected Recent bivalves from the Japanese coast were analyzed, relying on the annual increments recognized in the internal shell sections of marked and recovered individuals. (by Tanabe)(3) Endocochliate embryo model was proposed for the Mesozoic Ammonitida (Cephalopoda) on the basis of comparative microstructural observations of juvenile shells of the Cretaceous ammonites and modern cephalopods (Nautilus, Sepia and Spirula). (by Tanabe)(4) Functional meanings of the internal ribs and hydrodynamic properties for the shells of some modern and fossil pectinids (Bivalvia) were considered by means of scanning electron microscopy and hydrodynamic experiments respectively. (by Hayami)(5) Biogeographic distribution and growth rate of stalk of the crinoid Isocrinus from the western Pacific were examined, as a basis for understanding the biota in the deep-sea environments. (by 0ji)

该项目考虑了现代软体动物和化石软体动物的生活史策略，特别是双壳类和头足类的早期发育、绝对壳生长和功能形态。本研究的结果概括如下：(1)根据日本西南部太平洋地区上皮里奥-更新世沉积物中保存完好的幼体贝壳的前壳形态和形态测定，估算了 Limopsis、Glycymeris 和 Venericardia (Bivalvia) 几种物种的发育类型和幼体死亡率。 （田边）（2）根据标记和恢复个体的内壳部分所识别的年度增量，对来自日本海岸的选定的近期双壳类的绝对壳生长模式和老化进行了分析。 （田边作者）(3) 基于对白垩纪菊石和现代头足类动物（鹦鹉螺、乌贼和螺旋藻）幼年贝壳的比较微观结构观察，提出了中生代菊石纲（头足类）的内蜗胚胎模型。 （田边作者）（4）分别通过扫描电子显微镜和水动力实验研究了一些现代果胶类和化石果胶类（双壳纲）的内部肋的功能意义和壳的水动力特性。 （Hayami 撰）（5）对西太平洋海百合 Isocrinus 的生物地理分布和茎生长速率进行了研究，作为了解深海环境中生物群的基础。 （作者：0ji）

项目成果

Tanabe,K.,Tsukahara,J.and Hayasaka,S.: "Comparative morphology of living Nautilus (Cephalopoda)from the Philippines,Fiji and Palau." Malacologia. 31. 303-318 (1990)

Tanabe, K.、Tsukahara, J. 和 Hayasaka, S.：“来自菲律宾、斐济和帕劳的活鹦鹉螺（头足类）的比较形态。”

Tanabe, K. and Oba, T.: "Latitudinal variation in shell growth patterns of Phacosoma japonicum (Bivalvia: Veneridae) from the Japanese coast." Marine Ecology, Progress Series, Vol. 47, p.75-82 (1988).

Tanabe, K. 和 Oba, T.：“日本海岸的 Phacosoma japonicum（双壳纲：Veneridae）贝壳生长模式的纬度变化。”

Dagys, A.S., Lehmann, U., Bandel, K., Tanabe, K. and Weitschat, W.: "The jaw apprati of ectocochleate cephalopods." Palaontologische Zeitschrift, Vol. 63, p.41-53 (1989).

Dagys, A.S.、Lehmann, U.、Bandel, K.、Tanabe, K. 和 Weitschat, W.：“外蜗壳头足类动物的下颌装置。”

Oji,T.: "Distribution of stalked crinoids from Japan and nearby waters." The University Museum,Uiversity of Tokyo,Nature and Culture. No.1. 27-43 (1989)

Oji,T.：“来自日本和附近水域的有柄海百合的分布。”

Oji, T.: "Growth rate of stalk of Metacrinus rotundus (Echinodermata: Crinoidea) and its functional significance." Journal of the Faculty of Science, University of Tokyo, Section II, Vol.22, p.39-51 (1989).

Oji, T.：“Metacrinus rotundus（棘皮动物：海百合总科）茎的生长速度及其功能意义。”