Diversity of cryophilic ostracods based on fossil records

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07199
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: Nihon University
• Principal Investigator: OZAWA Hirokazu 日本大学, 生物資源科学部, 講師 (20632045)
• Research Collaborator: TSUKAGOSHI Akira ; TSUKAWAKI Shinji ; KAMIYA Takahiro ; TANIMURA Yoshihiro ; NAKAO Yuriko ; NAKAI Shizuko
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 生物多様性 / 貝形虫 / 分類 / 新生代 / 北西太平洋 / 海洋環境変動 / 日本海 / 化石

Outline of Final Research Achievements

This research is studying cryophilic ostracods (small crustacea) living in and around the Japanese Islands. This study is trying to clarify their suitable living conditions for present habitats, the history from the birth to flourishing, places of the birth and flourishing, key factors of environmental fluctuations for their diversifying process, with estimates for the phylogenetic relationship among plural species for the two families. Furthermore this research will clarify the primary cryophilic fauna in the northwestern Pacific margin and the history of the taxonomic diversity changes. For the last three years, this study obtained the data to be able to infer the period of the birth and environmental conditions of habitats, with the estimation for the phylogenetic relationships based on pore distributional pattern for the one genus of one family. We will represent these data on scientific journals and talks in academic meetings in Japanese and international congress near future.

Free Research Field

古生物学、古環境学