Study on life history strategy of subtropical large planktonic copepods

2016 Fiscal Year Final Research Report

• Project/Area Number: 25450255
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Aquatic bioproduction science
• Research Institution: Yokohama National University
• Principal Investigator: Shimode Shinji 横浜国立大学, 大学院環境情報研究院, 准教授 (70397090)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 生活史戦略 / 卵サイズ / 卵生産

Outline of Final Research Achievements

To understand details of life history strategy and speciation processes, we conducted filed investigation and laboratory experiments on egg production rates and egg sizes of subtropical large planktonic copepod families of Eucalanidae and Calanidae species. The egg sizes relative to the female body sizes were clearly different among epipelagic species and OVM (ontogenetic vertical migration) species. Our result revealed that the former group is K-strategist (large but fewer eggs), while the later group is r-strageist (small but many eggs).

Free Research Field

生物海洋学