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A. Imai · SciRah

Researcher profile · Semantic Scholar

A. Imai

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A. Imai — researcher profile on SciRah

h-index: 26
Works: 132
Citations: 2,616

Most-cited papers

Application of spectral decomposition algorithm for mapping water quality in a turbid lake (Lake Kasumigaura, Japan) from Landsat TM data
Y. Oyama, B. Matsushita, T. Fukushima, K. Matsushige +1 more
2009110 citations
Semantic Scholar
Biogenic phosphorus compounds in sediment and suspended particles in a shallow eutrophic lake: a ³¹P-nuclear magnetic resonance (³¹P NMR) study.
R. Shinohara, A. Imai, N. Kawasaki, K. Komatsu +5 more
2012Environmental Science and Technology105 citations
Semantic Scholar
Characterization of dissolved organic matter in wastewater during aerobic, anaerobic, and anoxic treatment processes by molecular size and fluorescence analyses.
K. Komatsu, T. Onodera, A. Kohzu, K. Syutsubo +1 more
2019Water Research95 citations Open access
Semantic Scholar
Dissolved iron and its speciation in a shallow eutrophic lake and its inflowing rivers.
T. Nagai, A. Imai, K. Matsushige, K. Yokoi +1 more
2007Water Research63 citations
Semantic Scholar
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.
N. Kawasaki, K. Matsushige, K. Komatsu, A. Kohzu +6 more
2011Water Research62 citations
Semantic Scholar
Effect of iron complexation with dissolved organic matter on the growth of cyanobacteria in a eutrophic lake
T. Nagai, A. Imai, K. Matsushige, T. Fukushima
200653 citations Open access
Semantic Scholar
Growth characteristics and growth modeling of Microcystis aeruginosa and Planktothrix agardhii under iron limitation
T. Nagai, A. Imai, K. Matsushige, T. Fukushima
2007Limnology46 citations
Semantic Scholar
Improvement of COD removal by controlling the substrate degradability during the anaerobic digestion of recalcitrant wastewater.
Minako Kawai, N. Nagao, N. Kawasaki, A. Imai +1 more
2016Journal of Environmental Management45 citations
Semantic Scholar
Bacterial Contribution to Dissolved Organic Matter in Eutrophic Lake Kasumigaura, Japan
N. Kawasaki, K. Komatsu, A. Kohzu, N. Tomioka +7 more
2013Applied and Environmental Microbiology43 citations Open access
Semantic Scholar
Effect of light availability on Microcystis aeruginosa blooms in shallow hypereutrophic Lake Kasumigaura
N. Tomioka, A. Imai, K. Komatsu
201143 citations
Semantic Scholar
Release of nitrogen and phosphorus from aquaculture farms to Selangor River, Malaysia
N. Kawasaki, M. Kushairi, N. Nagao, F. Yusoff +2 more
201641 citations Open access
Semantic Scholar
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, N. Komatsu, T. Kitamura, Y. Ishii +9 more
2012Environmental Microbiology41 citations
Semantic Scholar
Voltammetric determination of dissolved iron and its speciation in freshwater
T. Nagai, A. Imai, K. Matsushige, K. Yokoi +1 more
2004Limnology39 citations
Semantic Scholar
Paleoclimatic changes on the southern Tibetan Plateau over the past 19,000 years recorded in Lake Pumoyum Co, and their implications for the southwest monsoon evolution
M. Nishimura, Tetsuya Matsunaka, Y. Morita, Takahiro Watanabe +6 more
201438 citations
Semantic Scholar
Dynamics of particulate phosphorus in a shallow eutrophic lake.
R. Shinohara, A. Imai, A. Kohzu, N. Tomioka +6 more
2016Science of the Total Environment31 citations
Semantic Scholar
Modern lake ecosystem management by sustainable harvesting and effective utilization of aquatic macrophytes
S. Ban, T. Toda, Mitsuhiko Koyama, K. Ishikawa +2 more
2018Limnology28 citations
Semantic Scholar
Role of organic phosphorus in sediment in a shallow eutrophic lake
R. Shinohara, M. Hiroki, A. Kohzu, A. Imai +7 more
201727 citations
Semantic Scholar
Runoff and loads of nutrients and heavy metals from an urbanized area.
H. Shirasuna, T. Fukushima, Kazuo Matsushige, A. Imai +1 more
2006Water Science and Technology25 citations Open access
Semantic Scholar
Spatial and temporal variations in sediment enzyme activities and their relationship with the trophic status of Erhai Lake
Li Zhang, Sheng-Rui Wang, A. Imai
201522 citations
Semantic Scholar
Biological nitrate utilization in south Siberian lakes (Baikal and Hovsgol) during the Last Glacial period: the influence of climate change on primary productivity
F. Nara, Takahiro Watanabe, T. Kakegawa, K. Minoura +5 more
201421 citations
Semantic Scholar
Direct evidence for nitrogen isotope discrimination during sedimentation and early diagenesis in Lake Kasumigaura, Japan
A. Kohzu, A. Imai, T. Miyajima, T. Fukushima +5 more
201121 citations
Semantic Scholar
Analysis of stream water quality and estimation of nutrient load with the aid of Quick Bird remote sensing imagery
B. He, K. Oki, Yi Wang, T. Oki +6 more
201220 citations Open access
Semantic Scholar
Enhancement of algal growth by Mg2+ released from anaerobic digestion effluent of aquatic macrophytes through photolysis
J. Qian, Koichi Shimotori, Xin Liu, S. Ban +5 more
202118 citations
Semantic Scholar
Coniferous coverage as well as catchment steepness influences local stream nitrate concentrations within a nitrogen-saturated forest in central Japan.
Mirai Watanabe, S. Miura, S. Hasegawa, M. Koshikawa +4 more
2018Science of the Total Environment18 citations
Semantic Scholar
Quantification and characterization of coastal dissolved organic matter by high‐performance size exclusion chromatography with ultraviolet absorption, fluorescence, and total organic carbon analyses
Koichi Shimotori, Takayuki Satou, A. Imai, N. Kawasaki +5 more
201618 citations Open access
Semantic Scholar
Long-term changes in lake sediments and their influences on lake water quality in Japanese shallow lakes.
T. Fukushima, Koichi Kamiya, Y. Onda, A. Imai +1 more
201018 citations
Semantic Scholar
Budgets of major ionic species and nutrients on a dam reservoir in forested watershed.
Y. Komai, S. Umemoto, Y. Takeda, T. Inoue +1 more
2007Water Science and Technology18 citations
Semantic Scholar
Variability of benthic methane‐derived carbon along seasonal, biological, and sedimentary gradients in a polymictic lake
K. Tsuchiya, K. Komatsu, R. Shinohara, A. Imai +4 more
2020Limnology and Oceanography17 citations Open access
Semantic Scholar
Typhoon-induced response of phytoplankton and bacteria in temperate coastal waters
K. Tsuchiya, V. Kuwahara, K. Hamasaki, Yuya Tada +6 more
201517 citations
Semantic Scholar
Parameterization of chlorophyll a-specific absorption coefficients and effects of their variations in a highly eutrophic lake: a case study at Lake Kasumigaura, Japan
K. Yoshimura, Nobuhiro Zaitsu, Yuta Sekimura, B. Matsushita +2 more
2012Hydrobiologia17 citations
Semantic Scholar
Effects of macrophyte harvesting on the water quality and bottom environment of Lake Biwa, Japan
A. Kohzu, Koichi Shimotori, A. Imai
2018Limnology16 citations
Semantic Scholar
Quantification of microcystis in a eutrophic lake by simple DNA extraction and SYBR green real-time PCR.
N. Tomioka, T. Nagai, Tatsuya Kawasaki, A. Imai +2 more
2008Microbes and Environments16 citations Open access
Semantic Scholar
Seasonal variability and regulation of bacterial production in a shallow eutrophic lake
K. Tsuchiya, T. Sano, N. Tomioka, A. Kohzu +9 more
2019Limnology and Oceanography15 citations Open access
Semantic Scholar
The dynamics of pico-sized and bloom-forming cyanobacteria in large water bodies in the Mekong River Basin
M. Fukushima, N. Tomioka, T. Jutagate, M. Hiroki +5 more
2017PLoS ONE14 citations Open access
Semantic Scholar
Climate control of sulfate influx to Lake Hovsgol, northwest Mongolia, during the last glacial–postglacial transition: Constraints from sulfur geochemistry
F. Nara, Takahiro Watanabe, T. Kakegawa, H. Seyama +5 more
201014 citations
Semantic Scholar
TURBIDITY INCREASE AND SEDIMENT RESUSPENSION IN LAKE KASUMIGAURA
T. Seki, T. Fukushima, A. Imai, K. Matsushige
200614 citations Open access
Semantic Scholar
Radiocarbon measurements of dissolved organic carbon in sewage-treatment-plant effluent and domestic sewage
F. Nara, A. Imai, K. Matsushige, K. Komatsu +2 more
201013 citations
Semantic Scholar
Why has Lake Kasumigaura become turbid?
T. Fukushima, Shimako Kawamura, T. Seki, Y. Onda +2 more
200513 citations
Semantic Scholar
Comparison between humic-like peaks in excitation-emission matrix spectra and resin-fractionated humic substances in aquatic environments
K. Komatsu, A. Imai, N. Kawasaki
2018Limnology12 citations
Semantic Scholar
New radioisotope-free method for measuring bacterial production using [15N5]-2′-deoxyadenosine and liquid chromatography mass spectrometry (LC–MS) in aquatic environments
K. Tsuchiya, T. Sano, N. Kawasaki, H. Fukuda +6 more
2015Journal of Oceanography12 citations
Semantic Scholar
Testing the spectral decomposition algorithm (SDA) for different phytoplankton species by a simulation based on tank experiments
Y. Oyama, B. Matsushita, T. Fukushima, Jin Chen +2 more
201012 citations
Semantic Scholar
Primary production estimated for large lakes and reservoirs in the Mekong River Basin.
M. Hiroki, N. Tomioka, T. Murata, A. Imai +5 more
2020Science of the Total Environment11 citations Open access
Semantic Scholar
Short-term temporal variations in iron concentration and speciation in a canal during a summer algal bloom
T. Nagai, A. Imai, K. Matsushige, K. Yokoi +1 more
2008Aquatic Sciences11 citations
Semantic Scholar
Linking Temporal Changes in Bacterial Community Structures with the Detection and Phylogenetic Analysis of Neutral Metalloprotease Genes in the Sediments of a Hypereutrophic Lake
S. Tsuboi, Shigeki Yamamura, A. Imai, Takayuki Satou +1 more
2014Microbes and Environments10 citations Open access
Semantic Scholar
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.
A. Kohzu, Shin-ichiro S. Matsuzaki, Shunsuke Komuro, K. Komatsu +4 more
2023Science of the Total Environment9 citations Open access
Semantic Scholar
Decrease in bacterial production over the past three decades in the north basin of Lake Biwa, Japan
K. Tsuchiya, N. Tomioka, T. Sano, A. Kohzu +6 more
2019Limnology9 citations
Semantic Scholar
Growth rates and tolerance to low water temperatures of freshwater bacterioplankton strains: ecological insights from shallow hypereutrophic lakes in Japan
Keiji Watanabe, Y. Ishii, N. Komatsu, T. Kitamura +4 more
2017Hydrobiologia9 citations
Semantic Scholar
Long-term light environment variability in Lake Biwa and Lake Kasumigaura, Japan: modeling approach
M. Terrel, T. Fukushima, B. Matsushita, K. Yoshimura +1 more
2012Limnology9 citations Open access
Semantic Scholar
Direct evidence for the alteration of 13C natural abundances during early diagenesis in Lake Kasumigaura, Japan
A. Kohzu, A. Imai, N. Ohkouchi, T. Fukushima +6 more
20119 citations
Semantic Scholar
In-situ growth rate of Microcystis spp. and their growth-limiting factors: use of cellular RNA content
T. Nagai, N. Tomioka, Tatsuya Kawasaki, A. Imai +1 more
2011Limnology9 citations
Semantic Scholar

Frequent co-authors

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K. Komatsu×17
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K. Komatsu — researcher profile on SciRah
A. Kohzu×17
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A. Kohzu — researcher profile on SciRah
T. Fukushima×16
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T. Fukushima — researcher profile on SciRah
K. Matsushige×14
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K. Matsushige — researcher profile on SciRah

×14

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N. Tomioka — researcher profile on SciRah

N. Kawasaki×13

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N. Kawasaki — researcher profile on SciRah

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Takayuki Satou×8

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Takayuki Satou — researcher profile on SciRah

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T. Nagai — researcher profile on SciRah

R. Shinohara×7

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T. Sano — researcher profile on SciRah