Junjiro N. Negishi

This study shows that the lateral extension of the hyporheic zone in gravel bars supports unique invertebrate communities, enhancing river diversity.

This study shows that groundwater from a disappeared tributary continues to affect river-riparian communities in a mainstem river, despite urbanization.

This study identifies thermal hotspots in a river that influence salmon spawning site selection and fry emergence timing, showing how groundwater affects salmon development.

The paper identifies cryptic connectivity between hyporheic and riparian zones via adult aquatic insects using DNA barcoding and community surveys.

This study investigates winter mortality in freshwater mussels in northern Japan, finding high adult winter mortality and summer hypoxia as key factors limiting population growth.