Masahiko Fujii

J-GLOBAL         Last updated: Nov 24, 2018 at 23:01
Masahiko Fujii
Hokkaido University
Research funding number

Research Interests


Research Areas


Academic & Professional Experience

May 2013
Jul 2013
Visiting professor, Interuniversity Department of Regional and Urban Studies and Planning, Politecnico di Torino
Jun 2008
Associaite professor, Faculty of Environmental Earth Science, Hokkaido University
Aug 2006
May 2008
Associaite professor, Center for Sustainability Science, Hokkaido University
Jan 2006
Jul 2006
Research associate, School of Marine Sciences, University of Maine
Aug 2003
Dec 2005
Postdoctral researcher, School of Marine Sciences, University of Maine

Published Papers

Kumagai, N. H., J. Garcia Molinos, H. Yamano, S. Takao, M. Fujii, and Y. Yamanaka
Proc. Natl. Acad. Sci. USA   115(36) 8990-8995   Sep 2018   [Refereed]
Global degradation of coral reefs and macroalgal beds can have ecosystem-wide implications for biodiversity, ecological functioning, and ocean resources. However, recent studies in warm temperate zones have documented community shifts from macroal...
Ba, X., N. Kouchi, K. Watanabe, M. Nakaoka, and?M. Fujii
Marine Chemistry   205(20) 81-89   Sep 2018   [Refereed]
The suspension feeding benthic bivalve surf clam, Pseudocardium sachalinense, which feeds on phytoplankton, benthic microalgae, and detritus in coastal waters, is one of the most important marine resources in Hamanaka, Hokkaido Prefecture, Japan. ...
Gavrilyeva, T. N., A. Sugimoto, M. Fujii, R. Yamanaka, G. N. Pavlov, and D. A. Kirillin
27(7) 52-65   2018   [Refereed]
The introduction of the principles of sustainable development into the world system of higher education began 30 years ago. It is one of the global trends now. The accumulated international experience is quite extensive and could be used in the de...
Fujii, M., and T. Sawadate
The Water-Energy-Food Nexus: Human-Environmental Security in the Asia-Pacific Ring of Fire   21-31   2018   [Refereed]
Developing renewable energy is crucial not only to reduce greenhouse gas emissions, but also to vitalize local economies by generating new jobs related to their operation and management. Small hydropower (SHP), a baseload renewable energy, has sub...
Masahiko Fujii
Kaiyo Monthly   50(5) 208-216   2018
Takeshi Yoshimura, Tsuneo Ono, Masahiko Fujii
Kaiyo Monthly   50(5) 195-199   2018
UENO, H., T. Ono, Y. Morioka, N. Fujii, M. Fujii, K. Kutsuwada, N. Harada
Bulletin on coastal oceanography   55(1) 65-70   2017   [Refereed]
The Oceanographic Society of Japan started a school visit program in 2016. The program is intended mainly for elementary school students, junior high school students and high school students to become interested in natural sciences, especially in ...
Garcia Molinos, J, S. Takao, N. H. Kumagai, E. S. Poloczanska, M. T. Burrows, M. Fujii, and H. Yamano
Global Change Biology   23 4440-4452   2017   [Refereed]
Conservation efforts strive to protect significant swaths of terrestrial, freshwater and marine ecosystems from a range of threats. As climate change becomes an increasing concern, these efforts must take into account how resilient‐protected space...
Yamada, M., J. Shoji, S. Ohsawa, T. Mishima, M. Hata, H. Honda, M. Fujii, and M. Taniguchi
Journal of Hydrology: Regional Studies   11 69-83   2017   [Refereed]
We investigated in Beppu, Oita Prefecture, Japan. Hot spring drainage flows into a river and then flows into coastal areas in this area, a region in Japan with many hot springs. The effects of that drainage on river and coastal area ecosystems rem...
Fujii, M., S. Tanabe, M. Yamada, T. Mishima, T. Sawadate, and S. Ohsawa
Journal of Hydrology: Regional Studies   11 107-116   2017   [Refereed]
This study aims to provide quantitative guidelines necessary for capacity building among various stakeholders to minimize water-energy conflicts in developing mini/micro hydropower (MHP), a baseload renewable energy that is socially necessary, not...
Yasir Haya, L. O. M., and M. Fujii
Journal of Oceanography   73(5) 623-645   2017   [Refereed]
As elsewhere in Indonesia, local inhabitants in the Pangkajene and Kepulauan (PANGKEP) Regency, Spermonde Archipelago area and along the south-west coast of Sulawesi traditionally regard the coral reefs as their livelihood source. Since human acti...
Rospriandana, N. and M. Fujii
Hydrological Research Letters   11(1) 6-11   2017   [Refereed]
Generally, the remoteness of potential sites for small hydropower (SHP) which are mostly located in mountainous regions, and complex hydrological phenomena, remain significant barriers for SHP development. However, hydrological modeling together w...
Kumagai, N. H., H. Yamano,?M. Fujii, Y. Yamanaka
Ecological Research   31 759-759   2016   [Refereed]
This paper describes the flora of habitatforming seaweeds (fucoids and temperate kelps) at 7673 sites of the Japanese coast encompassing its warm to cold temperate zone, recorded from 1887 to 2014. The data set includes 86 species (21,168 presence...
Yara, Y., H. Yamano, M. Steinacher, M. Fujii, M. Vogt, N. Gruber, and Y. Yamanaka
Aquatic Biodiversity Conservation and Ecosystem Services   41-56   2016   [Refereed]
Using the results from the NCAR CSM1.4-coupled global carbon cycle?climate model under the Intergovernmental Panel on Climate Change (IPCC) emission scenarios SRES A2 and B1, we estimated the effects of both global warming and ocean acidification ...
Orencio, P. M., A. Endo, M. Taniguchi, and M. Fujii
Social Indicators Research   129(3) 979-999   2016   [Refereed]
Ever since the contemporary view of the concept of human security has expanded from a state level to an individual level, it has been tied to a normative measurement of risk from perennial and pervasive threats that affect the vital core of human ...
Takao, S., H. Yamano, K. Sugihara, N. H. Kumagai, M. Fujii, and Y. Yamanaka
Coral Reefs   34(4) 1125-1137   2015   [Refereed]
The poleward expansion of coral habitats has been observed along the Japanese coast since the 1930s. Previous modeling studies have projected a poleward expansion using decadal-mean sea surface temperatures (SSTs) in the coldest months. However, t...
Fukuda, Y., and M. Fujii
Journal of the Japan Institute of Energy   94(9) 1057-1065   2015   [Refereed]
To promote the utilization of biomass energy, it is important to evaluate the potential resource and its distribution and accessibility appropriately. In this study, the available amount of various kinds of biomass resources was estimated based on...
Takao, S., N. H. Kumagai, H. Yamano, M. Fujii, and Y. Yamanaka
Ecology and Evolution   5(1) 213-223   2015   [Refereed]
Seaweed beds play a key role in providing essential habitats and energy to coastal areas, with enhancements in productivity and biodiversity and benefits to human societies. However, the spatial extent of seaweed beds around Japan has decreased du...
Shibano, R., M. Fujii, Y. Yamanaka, H. Yamano, S. Takao
Bull. Jpn. Soc. Fish. Oceanogr   78(4) 259-267   2014   [Refereed]
Climate change such as global warming affects marine ecosystems and fishery resources. The impacts to the species living in coastal regions are considered to become more serious due to a narrow range of inhabitation. Japanese scallop Mizuhopecten ...
Yamano, H., C. Hongo, K. Sugihara, Y. Yara, Y. Nakao, and M. Fujii
Integrative Observations and Assessments   65-81   2014   [Refereed]
Corals are facing rapid environmental changes including global-scale climate changes and local-scale anthropogenic influences. Japan covers a wide latitudinal range, stretching from subtropical to temperate areas, and latitudinal limits of coral r...
Magdaong, E., H. Yamano, and M. Fujii
Integrative Observations and Assessments   83-109   2014   [Refereed]
The Philippines is located in the tropics and contains highly diverse coral reefs, as it lies within the Coral Triangle, which is the global center of marine biodiversity. However, this biodiversity “hotspot” has experienced reef degradation drive...
Araki, H., S. Fujiwara, T. Jishi, M. Fujii, T. Yokota, and T. Nishida
Acta Horticulturae   1037 155-161   2014   [Refereed]
Obtaining of heat source is a serious problem in greenhouse production during winter because of expensive oil cost. Japan is rich in hot springs and hot water from the hot spring is used for spa in hotels. Mostly used hot water from the spa is dra...
Yara, Y., M. Fujii, H. Yamano and Y. Yamanaka
Hydrobiologia   733(1) 19-29   2014   [Refereed]
We quantitatively evaluated the effects of rising sea surface temperature (SST) on coral bleaching and the uncertainties resulting from differences in global warming projections. To do so, we used monthly SSTs in the twenty-first century obtained ...
Magdaong, E. T., M. Fujii, H. Yamano, W. Y. Licuanan, A. Maypa, W. L. Campos, A. C. Alcala, A. T. White, D. Apistar, and R. Martinez
Hydrobiologia   733(1) 5-17   2014   [Refereed]
Although coral declines have been reported from major reefs of the world, region-specific trends still remain unclear, particularly in areas with high diversity such as the Philippines. We assessed the temporal patterns of the magnitude and trajec...
Honjo, K., and M. Fujii
Regional Science Policy & Practice   6(1) 13-31   2014   [Refereed]
An understanding of the factors affecting household CO2 emissions is necessary for effective climate policies aimed at reducing emissions. We developed an empirical model of household CO2 emissions in the 47 prefectures of Japan and conducted a se...
Orencio, P. M., and M. Fujii
Journal of Risk Research   17(7) 815-836   2014   [Refereed]
Natural hazards have become increasingly frequent in the Philippines, making the determination of risks associated with large-scale natural hazards and disasters in this area increasingly important. This study developed a method for estimating the...
Orencio, P. M., and M. Fujii
International Journal of Disaster Risk Reduction   3 62-75   2013   [Refereed]
The increased number of natural hazards due to climate variability has resulted in numerous disasters in developing countries. In the Philippines, these are expected to be more common in coastal areas. The common approach to mitigate disasters in ...
Orencio, P. M., and M. Fujii
A Journal of the Human Environment (AMBIO)   42(1) 61-71   2013   [Refereed]
A coastal community vulnerability index (CCVI) was constructed to evaluate the vulnerability of coastal communities (Buhangin, Pingit, Reserva, Sabang, and Zabali) in the municipality of Baler, Aurora, Philippines. This index was composed of weigh...
Fujii, M., A. Ishida
Aquabiology   35(4) 315-322   2013
Yamada, K., M. Fujii, H. Araki
Journal of Life Cycle Assessment, Japan   8(1) 45-54   2012   [Refereed]
Hokkaido University is one of the largest general business institutions in Hokkaido Prefecture, and is now socially required to reduce its greenhouse gas (GHG) emission such as CO2 and N2O on campus. The campus can be regarded as a miniature town,...
Fujiwara, S., T. Jishi, H. Araki, M. Fujii
Journal of Life Cycle Assessment, Japan   8(4) 356-369   2012   [Refereed]
In hot spring areas, the water is generally heated by heavy oil boilers. However, substantial CO2 is emitted in the heating process, and the process is always affected strongly by oil prices. The Nagareyama Hot Spring, which is owned by the Hokkai...
Yara, Y., M. Vogt, M. Fujii, H. Yamano, C. Hauri, M. Steinacher, N. Gruber, and Y. Yamanaka
Biogeosciences   9 4955-4968   2012   [Refereed]
Using results from four coupled global carbon cycle-climate models combined with in situ observations, we estimate the effects of future global warming and ocean acidification on potential habitats for tropical/subtropical and temperate coral comm...
Tanaka, A., M. Fujii, and T. Oishi
Journal of Oceanography   68(1) 215-218   2012   [Refereed]
The availability of an equation to evaluate the influence of multiple scattering in the single scattering process corresponding to a layer of arbitrary optical thickness was established. In order to confirm the validity of this equation, the radia...
Yara, Y., K. Oshima, M. Fujii, H. Yamano, Y. Yamanaka, and N. Okada
Galaxea   13(1) 11-20   2011   [Refereed]
Using projected monthly mean sea surface tem-perature (SST) in the 21st century obtained by multiple climate models and SST-based indices for the poleward range expansions of three types of coral habitats, we quantitatively evaluated the effects o...
Lin, Y., M. Fujii, W. Peng
Management Science and Engineering   5(3) 126-131   2011   [Refereed]
This study aims to compare governmental activities and citizens’ consciousness in environmental protection in China and Japan. The citizens’ environmental awareness and the relevant acts were examined by designing and distributing questionnaires t...
Yara, Y., M. Fujii, Y. Yamanaka, N. Okada, H. Yamano, K. Oshima
日本サンゴ礁学会誌   11(1) 131-140   2009   [Refereed]
地球温暖化に伴う海水温上昇は,造礁サンゴ(以下,サンゴ)の生息域を高緯度側に移動(北半球においては北上)させる,或いは白化の規模・頻度・強度を増大させることで,将来のサンゴの分布や健全度に多大な影響を及ぼすと考えられる。本研究では,高解像度気候予測シミュレーションで得られた月平均海面水温(SST; Sea Surface Temperature)から見積もられた簡易指標を用いて,日本近海を対象に温暖化に伴うSST上昇が日本近海の潜在的なサンゴの分布および健全度に及ぼす影響を評価した。その結...
Nakao, Y., H. Yamano, M. Fujii, Y. Yamanaka
日本サンゴ礁学会誌   11(1) 109-129   2009   [Refereed]
Fujii, M., F. Chai, L. Shi, H. Y. Inoue, and M. Ishii
Journal of Oceanography   65(5) 689-701   2009   [Refereed]
The oceanic carbon cycle in the tropical-subtropical Pacific is strongly affected by various physical processes with different temporal and spatial scales, yet the mechanisms that regulate air-sea CO2 flux are not fully understood due to the pauci...
Fujii, M., and F. Chai
Deep-Sea Res. Part II   56(26) 2936-2947   2009   [Refereed]
Several in situ iron-enrichment experiments have been conducted, where the response of the phytoplankton community differed. We use a marine ecosystem model to investigate the effect of iron on phytoplankton in response to different initial plankt...
Kishi, M. J., K. Nakajima, M. Fujii, and T. Hashioka
J. Mar. Sys.   78(2) 278-287   2009   [Refereed]
Bioenergetics model is applied to Japanese common squid, Todarodes pacificus. The temporal change of wet weight of common squid, which migrates in the Sea of Japan, is simulated. The time dependent horizontal distribution of prey is calculated a p...
Masuda, Y., Y. Yamanaka, Y. Sasai, M. Fujii
海洋理工学会誌   14(1) 81-87   2008   [Refereed]
To evaluate whether chronic impacts on biota are caused by 50 Mton CO2 injection per year into the ocean, we simulated transport and dilution of injected CO2 using an offline oceanic general circulation model (OGCM) with a horizontal resolution of...
Fujii, M., and Y. Yamanaka
Biogeosciences   5 1189-1197   2008   [Refereed]
Biogeochemical responses of the open ocean to storms and their feedback to climate are still poorly understood. Using a marine ecosystem model, we examined biogeochemical responses to the storms in the subarctic western North Pacific. The storms i...
Fujii, M., E. Boss, and F. Chai
Biogeosciences   4 817-835   2007   [Refereed]
Many ecosystem models have been developed to study the ocean’s biogeochemical properties, but most of these models use simple formulations to describe light penetration and spectral quality. Here, an optical model is coupled with a previously publ...
Friedrichs, M. A. M., J. A. Dusenberry, L. A. Anderson, R. A. Armstrong, F. Chai, J. R. Christian, S. C. Doney, J. Dunne, M. Fujii, R. Hood, D. J. McGillicuddy Jr., J. K. Moore, M. Schartau, Y. H. Spitz, and J. D. Wiggert
J. Geophys. Res.   112    2007   [Refereed]
Application of biogeochemical models to the study of marine ecosystems is pervasive, yet objective quantification of these models' performance is rare. Here, 12 lower trophic level models of varying complexity are objectively assessed in two disti...
Fujii, M., and F. Chai
Deep-Sea Res. Part II   54(5) 496-520   2007   [Refereed]
The equatorial Pacific is a region of significant particulate inorganic carbon (PIC) and biogenic silica sedimentation, the majority of which is carried out by coccolithophorids and diatoms. We developed an ecosystem model that explicitly includes...
Kishi, M. J., M. Kashiwai, D. M. Ware, B. A. Megrey, D. L. Eslinger, F. E. Werner, M. Aita-Noguchi, T. Azumaya, M. Fujii, S. Hashimoto, D. Huang, H. Iizumi, Y. Ishida, S. Kang, G. A. Kantakov, H. Kim, K. Komatsu, V. V. Navrotsky, S. L. Smith, K. Tadokoro, A. Tsuda, O. Yamamura, Y. Yamanaka, K. Yokouchi, N. Yoshie, J. Zhang, Y. I. Zuenko, and V. I. Zvalinsky
Ecological Modelling   202(1) 12-25   2007   [Refereed]
The PICES CCCC (North Pacific Marine Science Organization, Climate Change and Carrying Capacity program) MODEL Task Team achieved a consensus on the structure of a prototype lower trophic level ecosystem model for the North Pacific Ocean, and name...
Fujii, M., Y. Yamanaka, Y. Nojiri, M. J. Kishi, and F. Chai
Ecological Modelling   202(1) 52-67   2007   [Refereed]
A NEMURO-based 16-compartment marine ecosystem model is applied to Stations A7 (41.5°N, 145.5°E) and KNOT (44°N, 155°E) in the subarctic western North Pacific and Station PAPA (50°N, 145°W) in the subarctic eastern North Pacific. Model results sho...
Yoshie, N., Y. Yamanaka, T. Hashioka, M. Fujii
Kaiyo Monthly   39(2) 2-10   2007
Fujii, M., M. Ikeda, and Y. Yamanaka
J. Oceanogr.   61(5) 803-815   2005   [Refereed]
To evaluate the contribution of biogeochemical processes to the oceanic carbon cycle and to calculate the ratio of calcium carbonate to organic carbon downward export, we have incorporated biological and alkalinity pumps in the yoked high-latitude...
Yoshie, N., M. Fujii, and Y. Yamanaka
Prog. Oceanogr.   64(2) 283-306   2005   [Refereed]
We have developed a one-dimensional ecosystem model considering explicitly two groups of diatoms: centric and pennate. The model was applied to the iron-enrichment experiment, SEEDS (Subarctic Pacific Iron Experiment for Ecosystem Dynamics Study) ...
Fujii, M., N. Yoshie, Y. Yamanaka, and F. Chai
Prog. Oceanogr.   64(2) 307-324   2005   [Refereed]
To fill temporal gaps in iron-enrichment experimental data and gain further understanding of marine ecosystem responses to iron enrichments, we apply a fifteen-compartment ecosystem model to three iron-enrichment sites, namely SEEDS (the Subarctic...
Fujii, M., and F. Chai
Geophys. Res. Lett.   32(5)    2005   [Refereed]
Biogenic silica (bSiO2) dissolution plays an important role in the marine silicon cycle, diatom production and vertical export production. An ocean ecosystem model that incorporates dependency of bSiO2 dissolution on water temperature was used to ...
Yamanaka, Y., N. Yoshie, M. Fujii, M. Aita-Noguti, and M. J. Kishi
J. Oceanogr.   60(2) 227-241   2004   [Refereed]
A model based on that of Kishi et al. (2001) has been extended to 15 compartments including silicon and carbon cycles. This model was applied to Station A7 off Hokkaido, Japan, in the Northwestern Pacific. The model successfully simulated the obse...
Fujii, M., Y. Yamanaka
Kaiyo Monthly   35 65-71   2003
Fujii, M., Y. Nojiri, Y. Yamanaka, and M. J. Kishi
Deep-Sea Res. Part II   49 5441-5461   2002   [Refereed]
A vertically one-dimensional ecosystem model is applied to Station KNOT (Kyodo North Pacific Ocean Time series; 44°N, 155°E). This model has 15 compartments, including two categories of phytoplankton (diatoms and non-diatom small phytoplankton) an...
Fujii, M., M. Ikeda, and Y. Yamanaka
J. Oceanogr.   56(6) 655-666   2000   [Refereed]
A simplified physical model is proposed in this article to describe differences among basins in substance distributions which were not well described by previous simplified models. In the proposed model, the global ocean is divided into the Pacifi...


Kubo Yuzuru, Yamashita Yoshimichi, Iwata Koichirou, Araki Hajime, Fujii Masahiko
Abstracts   2011(0) 33-33   2011
Kubo Yuzuru, Araki Hajime, Fujii Masahiko
Abstracts   2010(0) 188-188   2010

Books etc

地熱資源をめぐる 水・エネルギー・食料ネクサス ―学際・超学際アプローチに向けて―
Fujii, M.
近代科学社   Nov 2018   ISBN:978-4-7649-0578-8
持続可能な未来のために −原子力政策から環境教育, アイヌ文化まで−
藤井 賢彦
Hokkaido University Press   2012   
持続可能な低炭素社会III −国家戦略・個別政策・国際政策−
藤井 賢彦
Hokkaido University Press   2011   
Climate change global sustainability: A holistic approach
Yamanaka, Y. and?M. Fujii (Part:Joint Work)
United Nations University Press   2011   
Sustainable Low-Carbon Society
Yamanaka, Y.,?M. Fujii, and M. Ikeda (Part:Joint Work)
Hokkaido University Press   2010   

Conference Activities & Talks

Evaluation and prediction of the influences of ocean acidification to the subarctic coast
Yamaka, T., S. Takao, and M. Fujii
5th WESTPAC Workshop on Research and Monitoring of the Ecological Impacts of Ocean Acidification on Coral Reef Ecosystems   7 Nov 2018   
Assessment and projection of coastal ecosystems in Japan in response to ocean warming and ocean acidification
Fujii, M.
WESTPAC Ocean Acidication Symposium   5 Nov 2018   
Evaluation and prediction of the influences of ocean acidification to the subarctic coast
Yamaka, T., S. Takao, and M. Fujii
PICES 2018 Annual Meeting   1 Nov 2018   
海洋酸性化が日本沿岸の海洋生態系と地域社会に及ぼす影響 [Invited]
Fujii, M.
温暖化・海洋酸性化の研究と対策に関する国際シンポジウム ー科学と政策の接点ー   28 Oct 2018   
Fujii, M.
琉球大学熱帯生物圏研究センター西表研究施設公開講座   17 Oct 2018