博士課程学生

研究テーマ：「Thermal effects of flow regulation on the cold-water sedentary sculpin in the Toyohira River, Hokkaido」

概要：As ectotherms, fish are strongly affected by the environmental temperature in their physiology, and therefore their distribution and genetic structure in the natural aquatic environment. Thermal discontinuities in rivers, i.e., sections of the river that undergo sudden hydrothermal changes, can be introduced by dam flow manipulation and act as a barrier to prevent the passage or establishment of a certain fish when it exceeds their upper or lower limit of thermal avoidance, especially for sedentary species. However, there is scant evidence about whether and to what extent temperature differences can form thermal barriers to influence the distribution and genetic structure of fish in river systems, and how fast the fish can respond to thermal barrier removal. The partial cessation of the pumping-releasing event from the hydropower station in Toyohira River, Hokkaido offers an opportunity to work on these topics by focusing on the cold-water-adapted freshwater Sculpin (Cottus nozawae). The results will improve the comprehensive understanding of the ecological effects of dams and the thermal resilience of fish groups in rivers, and help the evaluation of river construction and restoration projects in the future..

出身地：China

教育バックグラウンド：Environmental and resources economics

一言：Be happy and keep trying

研究テーマ：「Understanding the ecology of the Tokachi River Basin using geospatial and ecological modelling」 The Tokachi River System is a Class I river system in Hokkaido. Historically small wetlands have existed within the region. As part of my research, I aspire to integrate field and ecological studies with geospatial modelling tools to help design sustainable wetland restoration strategies for the Tokachi river basin and other cold regions.

出身地：India

教育バックグラウンド：

Bachelors of Science – Fergusson College, Pune, India. Major- Environmental Science
Research topic – The Drivers of Sustainable Development in a Rural Community
Masters of Science – University of Pune, India. Major- Environmental Science
Graduate Thesis – Quality Assessment of Disinfection by-products (DBP’s) in Swimming Pool Waters
on the Environment
Masters of Science – Graduate School of Environmental Science, Hokkaido University, Japan. Major- Environmental
Science
Graduate Thesis – Assessment of Human-wildlife Conflict in the Okavango Delta, Botswana using
Geospatial and Climatic Data

   一言：Humour and the thought of writing humour in the sciences is a humorous vein to humour oneself with.
Its aim would be to start the reader with a deadpan title, self-deprecate in the introduction, add dashes of
slapstick, wry and sarcasm methods. Lows and highs of humour are the results which are discussed in dry or on
the gallows. As this writer concludes on the types of humour, she requests the readers to keep their humour and not go out of humour; because while trying to see the humour, the writer has run out of idioms on humour.

研究テーマ：「Hyporheic Invertebrate Diversity along the Lateral Gradient of Gravel Bar in Gravel-Bed River」　I am working on the hyporheic invertebrate within the domain of gravel bars in a gravel-bed river, focusing on their diversity contribution to total invertebrate diversity in the river and how this contribution varies based on the lateral gradient of gravel bars (increasing distance from wetted channel). Despite supporting diverse faunal biota, studies on contribution of hyporheic habitat to the total invertebrate diversity is limited. Additionally, diversity contributions coming from hyporheic zone within the gravel bars are also understudied as most of the functions of gravel bars are recognized for terrestrial animals and plants and for solute dynamics in subsurface zones. This research could contribute to the biological importance of hyporheic habitat in the gravel bars and could highlight the importance of maintaining and restoring gravel bars.

出身地：Philippines

教育バックグラウンド：Biology, Environmental Science

   一言：If you work on something a little bit every day, you end up with something that is massive.

研究テーマ：「Effect of pondage-type hydropower dam operation on invertebrate assemblage, trait, and function in the Toyohira river」　I am looking at how the tailrace of a pondage-type run-of-river hydropower is influencing water quality, and in turn, affecting the invertebrate communities. Specifically, I am comparing the distribution of invertebrates upstream and downstream of the confluence of the tailrace. In addition to abundance, I am also investigating the trait distribution and trying to understand which environmental factor (probably associated with the hydropower tailrace inflow) is affecting abundance and trait distributions the most. Moreover, I am also going to investigate if the effects of hydropower is reflected on functional aspects such as food webs.

出身地：Philippines

教育バックグラウンド：Biology (Ecology and Taxonomy)

   一言：I am starting to think that the best food are the ones you make, and the best people are the ones who eat the food you make and say that it`s delicious O_O