Channel catfish is a kind of catfish originated in North America. In Japan it was designated as an invasive alien species in 2005, and has been spreading its distribution in several rivers and lakes. The habitat and foods of channel catfish can overlap with those of domestic species so caution has to be taken in the waters. In my research, I use bio-logging methods to obtain information on distribution and behavior of channel catfish in the waters.

Current Research

○Behavior and energetics of channel catfish

○Distribution of non-native channel catfish in Japan

○Passive acoustic monitoring of catfishes

○Behavior of native Japanese and non-native strains of common carp

Publications and Presentations

Publications

Yoshida MA, Yamamoto D and Sato K (2017) Physostomous channel catfish, Ictalurus punctatus, modify buoyancy and swimming mode according to flow conditons. Journal of Experimental Biology 220: 597-606

Yoshida M, Suzuki H and Matsui J (2014) Temporal Changes of Personal Relations Network - “Why are you left alone? ” Research Institute for Mathematical Sciences Kokyuroku 1887: 1-7.

Yamamoto D, Sakai H, Abe N, Niimi K and Yoshida M (2014) Distribution and abundance of Channel Catfish Ictalurus punctatus in the Yahagi River and the use of trotline for catching. Report of Yahagi River Institute 18: 25-31.

Yoshida M (2013) New technology revealed the activity and behavior of channel catfish in Yahagi River. Rio - the newsletter of Toyota Yahagi River Institute. 180: 1-2.

Presentations

Yoshida MA, Mabuchi K, Inoue K and Sato K (2016) Swimming behavior of native Japanese and introduced common carp in offshore waters of Lake Biwa. The 49th Annual Meeting of the Ichthyological Society of Japan, Gifu

Yoshida MA,Yamamoto D and Sato K (2016) Population dynamics modeling of small-sized population of channel catfish utilizing telemetry data in a dammed river. The 63rd Annual Meeting of the Ecological Society of Japan, Sendai

Yoshida M and Sato K (2014) Variation in activity patterns of non-native channel catfish observed in river and lake. The 5th Bio-logging Science Symposium, Strasbourg

Yoshida M and Sato K (2014) Different activity patterns of channel catfish observed in rivers and lakes. The 61st Annual Meeting of the Ecological Society of Japan, Hiroshima

Yoshida M, Yamamoto D, Yamamoto T, Sakai H, Abe N and Sato K (2013) Behavioral ecology of an invasive alien species, channel catfish in Yahagi River. The 2013 spring meeting of the Japanese Society of Fisheries Science, Tokyo

Awards

Excellent Poster Award

Yoshida M and Sato K (2015) Changes in body angle of channel catfish to optimize the cost of transport under lotic environment. The 62nd Annual Meeting of the Ecological Society of Japan, Kagoshima

Best Presentation Award

Yoshida M, Suzuki H and Matsui J (2013) Temporal Changes of Personal Relations Network - “Why are you left alone?” Kyoto Summer Research Program in Mathematical Biology Next Wave 2013, Kyoto.

E-mail: mak@aori.u-tokyo.ac.jp