Improvement of species identification methods for small benthic animals inhabiting algal and seagrass beds in coastal areas

2016 Fiscal Year Final Research Report

• Project/Area Number: 26850116
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Aquatic bioproduction science
• Research Institution: The University of Tokyo
• Principal Investigator: Hayakawa Jun 東京大学, 大気海洋研究所, 助教 (10706427)
• Research Collaborator: Ohtsuchi Naoya 東京大学, 大気海洋研究所 ; Nakamoto Kenta 東京大学, 大気海洋研究所 ; Umezu Yuuya 東京大学, 大気海洋研究所 ; Fukuda Kaito フクダ海洋企画
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 貝類相 / 甲殻類相 / 種判別手法 / モニタリング

Outline of Final Research Achievements

Throughout the research period, field sampling was conducted at two sites under influences of the cold Oyashio current, two sites under influences of the warm Kuroshio current, and at the two sites in the subtropical area, and a large amount of samples of macrobenthic animals mainly consisting of gastropods and crustaceans was obtained from the each sampling site. In each species of gastropods and crustaceans, the specimen set through its developmental stages from the small juvenile to the adult was established. Based on the information from observing the specimen sets, key traits for species identification were explored in terms of juvenile Homalopoma spp., Lottia spp. and Trochidae species, of which species were difficult to be identified. In addition, specimens of multiple unspecified species and first appearing species were obtained from each sampling site, and we could accumulate knowledge for the development of a species identification method including these species.

Free Research Field

資源生態学