J-GLOBAL         Last updated: Oct 10, 2019 at 16:16
Otsuma Women's University
Faculty of Home Economics

Research Areas


Academic & Professional Experience

Apr 2015
Associate Professor, Department of Life Design, Faculty of Home Economics, Otsuma Women’s University
Apr 2014
Mar 2015
Chief, Agricultural Administration Department, Nagano Prefectural Government
Apr 2013
Mar 2014
Technician, Agricultural Administration Department, Nagano Prefectural Government
Apr 2009
Mar 2013
Technician, Saku Branch, Nagano Prefectural Fisheries Experimental Station
Oct 2006
Mar 2009
Associate Researcher, National Research Institute of Fisheries Science


Apr 1996
Mar 2001
School of Agriculture, Hokkaido University
Apr 1992
Mar 1996
Faculty of Science, Shinshu University

Awards & Honors

Mar 2002
Intrasexual competition and mate choice in male minnow, The 49th Ecological Society of Japan Meeting Poster Presentation Prize
Winner: Koseki Y, Maekawa K

Published Papers

Koseki Y, Komatsu N, Kohara M
Nippon Suizan Gakkaishi   85(4) 421-428   2019   [Refereed]
Morita K, Tsuboi J, Sahashi G, Kikko T, Ishizaki D, Kishi D, Endo S, Koseki Y
J Fish Biol   93 750-754   2018   [Refereed]
Koseki Y and Nishikawa U
Japan J Ecol   65 299-301   2015
Ueshima G and Koseki Y
Bulletin of Nagano Prefectural Fisheries Experimental Station   14 11-16   2013
Koseki Y and Maekawa K
Eurasian J Forest Res   7 87-108   2004   [Refereed]
Koseki Y and Maekawa K
Can J Fish Aquat Sci   59 1717-1723   2002   [Refereed]
Koseki Y, Koizumi I, Kobayashi H and Maekawa K
64 87-93   2002   [Refereed]
Maekawa, K, Koseki Y, Iguchi, K and Kitano S
Ecological Research   16 727-735   2001   [Refereed]
Koseki Y, Takata K and Maekawa K
Fisheries Science   66 633-635   2000   [Refereed]

Books etc

Encyclopedia of Ichthyology
Koseki Y (Part:Contributor, Chapter 5-22: Alternative reproductive strategy)
Maruzen Publishing   Oct 2018   ISBN:978-4621303177
Social-Ecological Restoration in Paddy-Dominated Landscapes
Koseki Y (Part:Contributor, Column: Rice-fish culture: the contemporary significance of a traditional practice)
Springer   2014   ISBN:978-4431553298
Frontiers of Freshwater Ecology
Koseki Y (Part:Contributor, Chapter 2: Spatial population dynamics in fresh waters)
Kyoritsu Shuppan   Mar 2012   ISBN:978-4320057371
Social Behavior of Fishes Vol. 3
Koseki Y (Part:Contributor, Chapter 5: Reproductive behavior and phenotypic characteristics of mature male parr in a salmon)
Kaiyu-sha   Oct 2004   ISBN:978-4905930792
Ecology and Evolution of Salmonids
Koseki Y and Fleming IA (Part:Contributor, Chapter 2-2: The evolution of alternative life histories as reproductive strategies: sexual selection and alternative reproductive phenotypes)
Bun-ichi   Apr 2004   ISBN:978-4829921845

Research Grants & Projects

MEXT: MEXT Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2016 - Mar 2018    Investigator(s): Koseki Y
Nagano Society for the Promotion of Science: NSPS Grant-in-Aid
Project Year: Jun 2010 - Mar 2011    Investigator(s): Koseki Y
JSPS: Grant-in-Aid for JSPS Overseas Fellowship
Project Year: Oct 2004 - Sep 2006    Investigator(s): Koseki Y
JSPS: Grant-in-Aid for JSPS Fellowship
Project Year: Apr 2001 - Mar 2004    Investigator(s): Koseki Y