Publications by authors named "Akio Imai"

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Impact of climate change and oligotrophication on quality and quantity of lake primary production: A case study in Lake Biwa.
Takehiro Kazama, Kazuhide Hayakawa, Takamaru Nagata, Koichi Shimotori, Akio Imai

Sci Total Environ· June 2024

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Identifying the true drivers of abrupt changes in ecosystem state with a focus on time lags: Extreme precipitation can determine water quality in shallow lakes.
Ayato Kohzu, Shin-Ichiro S Matsuzaki, Shunsuke Komuro, Kazuhiro Komatsu, Noriko Takamura, Akio Imai

Sci Total Environ· July 2023

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Measuring Photophysiology of Attached Stage of Colacium sp. by a Cuvette-Type Fast Repetition Rate Fluorometer.
Takehiro Kazama, Kazuhide Hayakawa, Koichi Shimotori, Akio Imai

J Vis Exp· November 2021

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Development of photosynthetic carbon fixation model using multi-excitation wavelength fast repetition rate fluorometry in Lake Biwa.
Takehiro Kazama, Kazuhide Hayakawa, Victor S Kuwahara, Koichi Shimotori, Akio Imai

PLoS One· July 2021

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Primary production estimated for large lakes and reservoirs in the Mekong River Basin.
Mikiya Hiroki, Noriko Tomioka, Tomoyoshi Murata, Akio Imai, Tuantong Jutagate

Sci Total Environ· December 2020

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Magnetic Resonance Imaging as a Novel Method for Elucidating Sediment Burrow Structures and Functions.
Ayato Kohzu, Hidehiro Watanabe, Akio Imai, Nobuhiro Takaya, Shingo Miura

ACS Omega· June 2020

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Incorporation characteristics of exogenous 15N-labeled thymidine, deoxyadenosine, deoxyguanosine and deoxycytidine into bacterial DNA.
Kenji Tsuchiya, Tomoharu Sano, Noriko Tomioka, Ayato Kohzu, Kazuhiro Komatsu, Akio Imai

PLoS One· May 2020

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Characterization of dissolved organic matter in wastewater during aerobic, anaerobic, and anoxic treatment processes by molecular size and fluorescence analyses.
Kazuhiro Komatsu, Takashi Onodera, Ayato Kohzu, Kazuaki Syutsubo, Akio Imai

Water Res· March 2020

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Vertical variation of bulk and metabolically active prokaryotic community in sediment of a hypereutrophic freshwater lake.
Shun Tsuboi, Ayato Kohzu, Akio Imai, Kazuhiro Iwasaki, Shigeki Yamamura

Environ Sci Pollut Res Int· March 2019

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Coniferous coverage as well as catchment steepness influences local stream nitrate concentrations within a nitrogen-saturated forest in central Japan.
Mirai Watanabe, Shingo Miura, Shun Hasegawa, Masami K Koshikawa, Takejiro Takamatsu, Akio Imai

Sci Total Environ· September 2018

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The dynamics of pico-sized and bloom-forming cyanobacteria in large water bodies in the Mekong River Basin.
Michio Fukushima, Noriko Tomioka, Tuantong Jutagate, Mikiya Hiroki, Tomoyoshi Murata, Akio Imai

PLoS One· January 2018

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Unexpected Diversity of pepA Genes Encoding Leucine Aminopeptidases in Sediments from a Freshwater Lake.
Shun Tsuboi, Shigeki Yamamura, Akio Imai, Kazuhiro Iwasaki

Microbes Environ· December 2016

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Improvement of COD removal by controlling the substrate degradability during the anaerobic digestion of recalcitrant wastewater.
Minako Kawai, Norio Nagao, Nobuyuki Kawasaki, Akio Imai, Tatsuki Toda

J Environ Manage· October 2016

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Dynamics of particulate phosphorus in a shallow eutrophic lake.
Ryuichiro Shinohara, Akio Imai, Ayato Kohzu, Noriko Tomioka, Eiichi Furusato

Sci Total Environ· September 2016

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Production of renewable hexanols from mechanocatalytically depolymerized cellulose by using Ir-ReOx /SiO2 catalyst.
Sibao Liu, Yasuyo Okuyama, Masazumi Tamura, Yoshinao Nakagawa, Akio Imai

ChemSusChem· February 2015

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Linking temporal changes in bacterial community structures with the detection and phylogenetic analysis of neutral metalloprotease genes in the sediments of a hypereutrophic lake.
Shun Tsuboi, Shigeki Yamamura, Akio Imai, Takayuki Satou, Kazuhiro Iwasaki

Microbes Environ· September 2014

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Bacterial contribution to dissolved organic matter in eutrophic Lake Kasumigaura, Japan.
Nobuyuki Kawasaki, Kazuhiro Komatsu, Ayato Kohzu, Noriko Tomioka, Ryuichiro Shinohara, Akio Imai

Appl Environ Microbiol· December 2013

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Biogenic phosphorus compounds in sediment and suspended particles in a shallow eutrophic lake: a ³¹P-nuclear magnetic resonance (³¹P NMR) study.
Ryuichiro Shinohara, Akio Imai, Nobuyuki Kawasaki, Kazuhiro Komatsu, Ayato Kohzu

Environ Sci Technol· October 2012

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Ecological niche separation in the Polynucleobacter subclusters linked to quality of dissolved organic matter: a demonstration using a high sensitivity cultivation-based approach.
Keiji Watanabe, Nobuyuki Komatsu, Tatsumi Kitamura, Yuichi Ishii, Ho-Dong Park, Akio Imai

Environ Microbiol· September 2012

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Fast and precise method for HPLC-size exclusion chromatography with UV and TOC (NDIR) detection: importance of multiple detectors to evaluate the characteristics of dissolved organic matter.
Nobuyuki Kawasaki, Kazuo Matsushige, Kazuhiro Komatsu, Ayato Kohzu, Fumiko Watanabe Nara, Akio Imai

Water Res· November 2011

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Quantification of microcystis in a eutrophic lake by simple DNA extraction and SYBR green real-time PCR.
Noriko Tomioka, Takashi Nagai, Tatsuya Kawasaki, Akio Imai, Kazuo Matsushige

Microbes Environ· July 2011

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Dissolved iron and its speciation in a shallow eutrophic lake and its inflowing rivers.
Takashi Nagai, Akio Imai, Kazuo Matsushige, Kunihiko Yokoi, Takehiko Fukushima

Water Res· February 2007

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Trihalomethane formation potential of dissolved organic matter in a shallow eutrophic lake.
Akio Imai, Kazuo Matsushige, Takashi Nagai

Water Res· October 2003

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Characterization of dissolved organic matter in effluents from wastewater treatment plants.
Akio Imai, Takehiko Fukushima, Kazuo Matsushige, Yong-Hwan Kim, Kwangsoon Choi

Water Res· February 2002

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