Long‐term observation of fish community in streams inside and outside road construction of Teshio River system, northern Hokkaido, Japan,Ecological Research

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Long‐term observation of fish community in streams inside and outside road construction of Teshio River system, northern Hokkaido, Japan
Ecological Research ( IF 1.7 ) Pub Date : 2020-10-16 , DOI: 10.1111/1440-1703.12133
Yoshiyuki Umatani ₁ , Atsushi Okuda ₂ , Eishi Fujito ₃ , Toshiya Yoshida ₄ , Fuyuki Satoh ₃ , Koji Maekawa ₃ , Masahiro Nakamura ₅

Affiliation

Nakagawa experimental forest of Hokkaido University is located in the middle Teshio River and some tributaries flow through the forest. The construction of Otoineppu bypass route started in 2007. This bypass route will pass through the forest. In order to evaluate the impacts of the road construction on stream ecosystem, a long‐term monitoring of fish community and stream environmental characteristics have been conducted including before, during and after the road construction. The survey has been implemented on five streams in Teshio River (three streams inside the bypass construction zone and two streams outside the zone). Here, we report the data of species, body size and weight of fish sampled using an electrofishing unit and the data of stream environmental characteristics such as water temperature, water surface area, pH and EC. The three‐pass removal method for fish sampling and measurement of stream environmental characteristics was conducted three times a year (mainly June, August and October) from 1999 to 2018. A total of 57,203 individuals were observed, belonging to 11 species in seven families. After bypass road construction started (2007), the number of fishes gradually increased at both bypass road construction and control sites. Occasionally, the number of fishes at the bypass construction site tended to be lower than at the control site, but there was not always noticeable difference between them.

中文翻译：

日本北海道北部特潮河系统道路内外溪流鱼类群落的长期观察

北海道大学中川实验林位于特潮河中部，部分支流流经森林。Otoineppu绕行路线的建设始于2007年。该绕行路线将穿过森林。为了评估道路建设对河流生态系统的影响，对鱼类群落和河流环境特征进行了长期监测，包括道路建设之前，之中和之后。这项调查已在Teshio河的5条溪流（旁路建设区内的3条溪流和该区之外的2条溪流）上进行。在这里，我们报告使用电钓单元采样的鱼的种类，体重和体重的数据，以及水温，水表面积，pH和EC等河流环境特征的数据。从1999年到2018年，每年进行三次三次（主要是6月，8月和10月）鱼采样和溪流环境特征测量。共观察到57203人，属于7个科的11种。在绕道建设开始（2007年）之后，绕道建设和控制站点的鱼类数量逐渐增加。有时，旁路施工现场的鱼类数量倾向于少于对照现场，但它们之间并不总是存在明显的差异。在绕道建设开始（2007年）之后，绕道建设和控制站点的鱼类数量逐渐增加。有时，旁路施工现场的鱼类数量倾向于少于对照现场，但它们之间并不总是存在明显的差异。在绕道建设开始（2007年）之后，绕道建设和控制站点的鱼类数量逐渐增加。有时，旁路施工现场的鱼类数量倾向于少于对照现场，但它们之间并不总是存在明显的差异。

更新日期：2020-11-21

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