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Kyoto University  Graduate School of Science Laboratory of Animal Science

JSPS Research Fellowship

Major Interest 

I am interested in feeding ecology of fishes, especially territorial management of algal farms by herbivorous fishes and their specialization to specific algae that flourish exclusively inside the farms. My research is focused on the mutualistic interactions (cultivation mutualism) between these herbivorous fishes and algae, geographic patterns of the interactions, and the origin and evolution of the mutualisms.  


1. Ochi, H., Hata, H. & Hori, M. in press. Advantage of hermlessness in gaining preferential access to a heterospecific territory. Journal of Fish Biology.

Hata, H. & M. Kato. 2006. A novel obligate cultivation mutualism between damselfish and Polysiphonia algae. Biology Letters. 2: 593-596. 10.1098/rsbl.2006.0528.
This work is introduced in Nature 442 (7104): 723, Science News 170 (7): 102.

3. Hata, H. & M. Kato. 2004. Monoculture and mixed-species algal farms on a coral reef are maintained through intensive and extensive management by damselfishes. Journal of Experimental Marine Biology and Ecology. 313: 285-296.

4. Hata, H. & M. Kato. 2003. Demise of monocultural algal farms by exclusion of territorial damselfish. Marine Ecology Progress Series. 263:159-167.

5. Hata, H. & M. Kato. 2002. Weeding by the herbivorous damselfish Stegastes nigricans in monocultural algae farms. Marine Ecology Progress Series. 237: 227-231.

6. Hata, H. & M. Nishihira. 2002. Territorial damselfish enhances multi-species co-existence of foraminifera mediated by biotic habitat structuring. Journal of Experimental Marine Biology and Ecology. 270: 215-240.

7. Hata, H., M. Nishihira & S. Kamura. 2002. Effects of habitat-conditioning by the damselfish Stegastes nigricans on community structure of benthic algae.  Journal of Experimental Marine Biology and Ecology. 280: 95-116. 



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