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WATANABE, Katsutoshi

Education (Academic degrees):

March 1990 BA  --- Faculty of Fisheries, Mie University (Mie, Japan)

March 1992 MA --- Graduate School of Fisheries, Tokyo University of Fisheries (Tokyo, Japan)

March 1995 PhD --- Graduate School of Fisheries, Tokyo University of Fisheries (Tokyo, Japan)

Main Research Themes:

1. Phylogeny and Phylogeography of the East Asian Freshwater  Fishes, based on Morphology, Fossils, and DNA Markers

Bagrid catfish (Pseuodobagus and relatives), some cyprinids including minnows (Pseudorasbora), Chinese cave fish (Sinocyclochelus), etc., threespine sticklebacks (Gasterosteus), etc.

2.  Evolution of Fishes in Ancient Lakes

Lake Biwa (Japan), Inle Lake (Myanmar)

3. Conservation Ecology, Genetics, and Genomics

Bagrid catfish (Pseudobagrus ichikawai), botiid loach (Parabotia curtus), bittering (Tanakia tanago), Kirikuchi charr (Salvelinus leucomaenis japonicus), threespine sticklebacks (Gasterosteus aculeatus), etc.

Selected Publications: [Full List]

Mishina, T., H. Takeshima, M. Takada, K. Iguchi, C. Zhang, Y. Zhao, R. Kawahara-Miki, Y. Hashiguchi, R. Tabata, T. Sasaki, M. Nishida and K. Watanabe. 2021. Interploidy gene flow involving the sexual-asexual cycle facilitates the diversification of gynogenetic triploid Carassius fish. Scientific Reports, 11: 22485. https://doi.org/10.1038/s41598-021-01754-w (2021)

Ito, R. K., S. Harada, R. Tabata and K. Watanabe. 2021. Molecular evolution and convergence of the rhodopsin gene in Gymnogobius, a goby group having diverged into coastal to freshwater habitats. Journal of Evolutionary Biology, 35: 333–346. https://doi.org/10.1111/jeb.13955 (2021)

Kokita, T., K. Ueno, Y. Y. Yamasaki, M. Matsuda, R. Tabata, A. J. Nagano, T. Mishina and K. Watanabe. 2021. Gudgeon fish with and without genetically determined countershading coexist in heterogeneous littoral environments of an ancient lake. Ecology and Evolution, 11: 13283–13294. https://doi.org/10.1002/ece3.8050 (2021)

Watanabe, K., R. Tabata, J. Nakajima, M. Kobayakawa, M. Matsuda, K. Takaku, K. Hosoya, K. Ohara, M. Takagi, N.-H. Jang-Liaw. 2020. Large-scale hybridization of Japanese populations of Hinamoroko, Aphyocypris chinensis, with A. kikuchii introduced from Taiwan. Ichthyol. Res. 67: 361–374. Doi:10.1007/s10228-019-00730-9

Watanabe, K., H. Sakai, T. Sanada and M. Nishida. 2018. Comparative phylogeography of diadromous and freshwater daces of the genus Tribolodon (Cyprinidae). Ichthyol. Res., 65: 383–397. Doi: 10.1007/s10228-018-0624-9

Tabata R., R. Kakioka, K. Tominaga, T. Komiya and K. Watanabe. 2016. Phylogeny and historical demography of endemic fishes in Lake Biwa: the ancient lake as a promoter of evolution and diversification of freshwater fishes in western Japan. Evol. Ecol. http://dx.doi.org/10.1002/ece3.2070

Kakioka, R., T. Kokita, H. Kumada, K. Watanabe and N. Okuda. 2015.  Genomic architecture of habitat-related divergence and signature of directional selection in the body shapes of Gnathopogon fishes. Mol. Ecol., 24: 4159–4174. DOI: 10.1111/mec.13309. (2015)

Yamasaki, Y. Y., M. Nishida, T. Suzuki, T. Mukai and K. Watanabe. 2015. Phylogeny, hybridization, and life history evolution of Rhinogobius gobies in Japan, inferred from multiple nuclear gene sequences. Mol. Phylogenet. Evol., 90: 20–33. Doi: 10.1016/j.ympev.2015.04.012  

Sato, T. and K. Watanabe. 2014. Do stage-specific functional responses of consumers dampen the effects of subsidies on trophic cascades in streams? J. Anim. Ecol. DOI: 10.1111/1365-2656.12192 (2014)

Komiya, T., S. Fujita-Yanahibayashi and K. Watanabe. 2014. Multiple colonizations of Lake Biwa by Sarcocheilichthys fishes and their population history. Environ. Biol. Fish. DOI 10.1007/s10641-013-0176-9 (2013)

Tabata, R. and K. Watanabe. 2013. Hidden mitochondrial DNA divergence in the Lake Biwa endemic goby Gymnogobius isaza: implications for its evolutionary history. Environ. Biol. Fish., 96: 701-712. DOI: 10.1007/s10641-012-0062-x (2012)

Kakioka, R., T. Kokita, R. Tabata, S. Mori and K. Watanabe. 2013. The origins of limnetic forms and cryptic divergence in Gnathopogon fishes (Cyprinidae) in Japan. Environ. Biol. Fish., 96: 631-644. DOI: 10.1007/s10641-012-0054-x (2012)

Yamane, H., K. Watanabe and Y. Nagata. 2013. Diversity in interspecific interactions between a nest-associating species, Pungtungia herzi, and multiple host species. Environ. Biol. Fish., 96: 573-584. DOI: 10.1007/s10641-012-0047-9 (2012)

Kakioka, R., T. Kokita, H. Komada, K. Watanabe and N. Okuda. 2013. A RAD-based linkage map and comparative genomics in the gudgeons (genus Gnathopogon, Cyprinidae). BMC Genomics, 14:32. DOI:10.1186/1471-2164-14-32

Kubota, H. and K. Watanabe. 2012. Effects of parental number and duration of the breeding period on the effective population size and genetic diversity of a captive population of the endangered Tokyo bitterling Tanakia tanago (Teleostei: Cyprinidae). Zoo Biology, 31: 656-668. Doi: 10.1002/zoo.20429 (2011)

Sato, T., K. Watanabe, S. Tamotsu, A. Ichikawa and A. Schmidt-Rhaesa. 2012.Diversity of nematomorph and cohabiting nematode parasites in riparian ecosystems around the Kii Peninsula, Japan. Can. J. Zool., 90: 829–838. Doi:10.1139/Z2012-048 (2012)

Sato, T., K. Watanabe, M. Kanaiwa, Y. Niizuma, Y. Harada and K. D. Lafferty. 2011. Nematomorph parasites drive energy flow through a riparian ecosystem. Ecology, 92: 201-207. Doi: 10.1890/09-1565.1 (2011)

Komiya, T., S. Fujita and K. Watanabe. 2011. A novel resource polymorphism in fish, driven by differential bottom environments: an example from an ancient lake in Japan. PLoS ONE, 6: e17430. Doi:10.1371/journal.pone.0017430 (2011)

Watanabe, K. 2012. Faunal structure of Japanese freshwater fishes and its artificial disturbance. Environ. Biol. Fish. Doi:10.1007/s10641-010-9601-5 (2010)

Watanabe, K., Y. Kano, H. Takahashi, T. Mukai, R. Kakioka and K. Tominaga. 2010. GEDIMAP: a database of genetic diversity for Japanese freshwater fishes. Ichthyol. Res., 57: 107-109. Doi:10.1007/s10228-009-0129-7 (2009) 

Watanabe, K. 2008. Diel activity and reproductive territory of the Japanese bagrid catfish, Pseudobagrus ichikawai. Environ. Biol. Fish., 81(1): 77--86. Doi: 10.1007/s10641-006-9173-6 (2006)

Takahashi, R., K. Watanabe, M. Nishida, M. Hori. 2007. Evolution of feeding specialization in Tanganyikan scale-eating cichlids: a molecular phylogenetic approach. BMC Evolutionary Biology, 7:195. Doi:10.1186/1471-2148-7-195

Watanabe, K., N.-H. Jang-Liaw, C.-G. Zhang, S.-R. Jeon, and M. Nishida. 2007. Comparative phylogeography of bagrid catfishes in Taiwan. Ichthyol. Res., 54(3) : 253--261. Doi: 10.1007/s10228-007-0398-y

Watanabe, K. and M. Nishida. 2003. Genetic population structure of Japanese bagrid catfishes. Ichthyol. Res., 50: 140--148.［Abstract］22. Kubota, H. and K. Watanabe. 2003. Genetic diversity in wild and reared populations of the Japanese bitterling, Tanakia tanago (Cyprinidae). Ichthyol. Res., 50: 123--128.［Abstract］

Watanabe, K., S. Mori and M. Nishida. 2003. Genetic relationships and origin of two geographic groups of the freshwater threespine stickleback, 'Hariyo'. Zool. Sci.20: 265--274.［Abstract］

Watanabe, K. and T. Uyeno. 1999. Fossil bagrid catfishes from Japan and their zoogeography, with description of a new species, Pseudobagrus ikiensis. Ichthyol. Res., 46 (4): 397--412.［Abstract］

Watanabe, K. 1998. Parsimony analysis of the distribution pattern of Japanese primary freshwater fishes, and its application to the distribution of the bagrid catfishes. Ichthyol. Res., 45 (3): 259--270.［Abstract］

Watanabe, K. and H. Maeda. 1995. Redescription of two ambiguous Japanese bagrids, Pseudobagrus aurantiacus (Temminck and Schlegel) and P. tokiensis Döderlein. Japan. J. Ichthyol., 41(4): 409--420.

Watanabe, K. 1994. Mating behavior and larval development of Pseudobagrus ichikawai (Siluriformes: Bagridae). Japan. J. Ichthyol., 41(3): 243--251.[PDF]