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
摘要
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。
Ten-year ecological investigation into eight-barbel loach, Lefua tokaiensis (Nemacheilidae, Cypriniformes)
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.
期刊介绍：
Limnology is a scientific journal published three times a year, in January, April, and August, by Springer in association with the Japanese Society of Limnology. The editors welcome original scientific contributions on physical, chemical, biological, or related research, including environmental issues, on any aspect of basic, theoretical, or applied limnology that present significant findings for the community of scholars. The journal publishes Rapid communications, Research papers, Review articles, Asia/Oceania reports, and Comments.
The aims and scope of Limnology are to publish scientific and/or technical papers in limnological sciences, to serve as a platform for information dissemination among scientists and practitioners, to enhance international links, and to contribute to the development of limnology.
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