Isao Takahashi
- Riverine longitudinal distribution of native ayu <i>Plecoglossus altivelis altivelis</i> in the Syubuto River, where no migration barriers are installed, in Hokkaido.. Dans: Ecology and Civil Engineering, v. 25, n. 1 (juillet 2022). (2022):
- 奈半利川におけるアユの生息数と減耗率の潜水目視法による推定 (Estimation of the population size and mortality rate of ayu, Plecoglossus altivelis altivelis in the Nahari River by underwater line transect method). Dans: Ecology and Civil Engineering, v. 19, n. 2 ( 2017). (2017):
- 流量変化に伴う河床型構成およびアユの生息密度の変化とそれらの河川維持流量評価への活用 (Assessment of river-bed composition and population density of ayu Plecoglossus altivelis to estimate minimum flow charge). Dans: Ecology and Civil Engineering, v. 15, n. 2 ( 2012). (2012):