Ten-year ecological investigation into eight-barbel loach, Lefua tokaiensis (Nemacheilidae, Cypriniformes)

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Jun-Ichi Miyazaki, Kenta Ogata, Ayaka Takano, Yutaro Hosaka, Yuta Gunji, Ryuki Sakai, Kenya Murata, Nichika Takano, Ryo Hirai, Seiya Hida
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引用次数: 0

Abstract

The ecological characteristics of the eight-barbel loach Lefua tokaiensis Ito, Hosoya, and Miyazaki were elucidated. Ecological field research was conducted at two localities: the montane stream of Houraiji and the Arao River of the Toyo River system in the Tokai region of Japan. The two localities showed high population density of L. tokaiensis, consisting of young-to-aged individuals. Loaches were likely to reproduce and migrate both upstream and downstream throughout year. Their lifespan was over 10 years, and loaches of more than ten generations simultaneously lived together. Growth rates slowed down strikingly with increasing age. The montane stream of Houraiji was suitable for the population of L. tokaiensis. The results of this study contribute to the protection of this endangered species.

对东海八带泥鳅(鲤形目,泥鳅科)的十年生态调查
阐明了伊藤、细谷和宫崎八带泥鳅(Lefua tokaiensis Ito, Hosoya, and Miyazaki)的生态特征。在日本东海地区的蓬莱寺山地溪流和东洋川水系的荒尾川这两个地方进行了生态实地研究。这两个地方的东海鳅种群密度很高,由幼年个体到成年个体组成。泥鳅可能全年都在上游和下游繁殖和洄游。它们的寿命超过 10 年,十代以上的泥鳅同时生活在一起。随着年龄的增长,生长速度明显减慢。宝来寺的高山溪流适合东海泥鳅种群的生长。这项研究结果有助于保护这一濒危物种。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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