Studies on larval ecology of coastal gastropods by population genetics and fluorescent marking

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K20922
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biodiversity/Systematics; Aquatic bioproduction science
• Research Institution: The University of Tokyo
• Principal Investigator: Fukumori Hiroaki 東京大学, 大気海洋研究所, 特任研究員 (60746569)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 幼生分散 / 集団遺伝学的解析 / 蛍光マーカー / 両側回遊 / 腹足類 / 沿岸域 / 海流 / マイクロサテライト

Outline of Final Research Achievements

Many species of coastal invertebrates with a planktonic larval stage often have a wide geographical distribution. The gastropods of the family Neritidae (Neritimorpha) include marine and freshwater species. Many species of neritids living in coastal rivers have an amphidromous lifecycle, and their larvae are dispersed by ocean current. As a result of population genetics using microsatellite data, there was no spatial genetic structure within Japanese population (Mainland Japan, Ogasawara Islands and Nansei Islands) of amphidromous species, and they were found to have high dispersal ability as with marine relatives. Fluorescent marking of neritid larvae is expected to be a useful tool in the field experimental studies on larval ecology.

Free Research Field

集団遺伝学・生態学