Study of movement of deep-sea organisms in dynamics of marine ecosystem

2015 Fiscal Year Final Research Report

• Project/Area Number: 25440204
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: University of Yamanashi
• Principal Investigator: Miyazaki Junichi 山梨大学, 総合研究部, 教授 (80229830)
• Co-Investigator(Renkei-kenkyūsha): FUJIWARA Yoshihiro 海洋研究開発機構, 海洋局限環境生物圏領域, チームリーダー (20344294)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: イガイ類 / ミトコンドリアDNA / 集団遺伝学的解析 / 化学合成生物群集 / 鯨骨生物群集 / 分散能力

Outline of Final Research Achievements

In order to resolve dynamic movement of deep-sea organisms in dynamics of the marine ecosystem, we studied, by genetic and ecological analyses, 1) a dispersal ability of deep-sea Bathymodiolus mussels, 2) genetic transition in Benthomodiolus geikotsucola in the whalebone-associated biological community, and 3) a dispersal ability of Adipicola pacifica in the whalebone-associated biological community. We showed high dispersal abilities of Bathymodiolus mussels and A. pacifica to exploit patchy and ephemeral habitats such as deep-sea vents and seeps and organic falls. We also showed no annual change between 1993 and 2005 in the genetic structure of B. geikotsucola.

Free Research Field

発生進化学