クメ　マナブ   Manabu Kume   久米　学    所属   石巻専修大学  理工学部    職種   准教授
言語種別	英語
発行・発表の年月	2021/02
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Factors structuring estuarine and coastal fish communities across Japan using environmental DNA metabarcoding
執筆形態	未選択
掲載誌名	Ecological Indicators
巻・号・頁	121,pp.107216
担当区分	筆頭著者,責任著者
著者・共著者	Manabu Kume,Edouard Lavergne,Hyojin Ahn,Yuki Terashima,Kohmei Kadowaki,Feng Ye,Satoshi Kameyama,Yoshiaki Kai,Yumi Henmi,Yoh Yamashita,Akihide Kasai
概要	© 2020 The Author(s) Estuarine and coastal ecosystems are important habitats for many fish species. Large-scale patterns of estuarine and coastal fish communities can be affected by geographical factors, such as water temperature and latitude, that limit or allow fish dispersal, and/or by environmental factors that select locally adapted species. Furthermore, increased human activity has also altered fish diversity by modifying estuarine/coastal environments. Here, we used environmental DNA metabarcoding to study a large-scale pattern of estuarine/coastal fish communities across 25 watersheds in the Japanese Archipelago, and we assessed the effects of geographical, environmental, and anthropogenic factors in structuring these communities. Of the 290 fish species detected, 47 species were red-listed by the Japanese Ministry of Environment, and nine were alien. Non-metric multidimensional scaling showed that latitude and water temperature affected both river-mouth and coastal-sea fish communities. Although other anthropogenic factors did not affect these communities, bank artificialisation rates influenced both. The relationship between each fish community and ocean currents was weak. The number of red-listed fish affected both fish community structures, whereas that of alien species did not. The numbers of red-listed fish in coastal points and of all fish species were negatively influenced to the human population density. These findings provide useful information that may be used to conserve estuarine and coastal ecosystems.
DOI	10.1016/j.ecolind.2020.107216
ISSN	1470-160X