ESJ61 シンポジウム S10

シンポジウム S10 -- 3月15日 14:30-17:30 B会場

Use of various isotope tools in watershed ecology

Organizer: Ichiro Tayasu (CER, Kyoto Univ.)

「集水域の生態学における各種同位体手法の利用」使用言語：英語　

Stable isotope tools have been used to study watershed ecology, which covers research on nutrient flow and food web dynamics among forest, river, lake and coastal ecosystems. In this symposium, we present various new isotope techniques to discuss further applications in ecology. Case studies from headwater streams to a lake ecosystem are presented in the symposium. A theoretical approach that can be used to interpret isotopic patterns is also presented. Prof. Power will give an overview of research linking forests, rivers, and coastal oceans, and will highlight the importance of isotopes in this research.

[S10-1] Isotope tools: new directions　 Ichiro Tayasu (CER, Kyoto Univ.)

[S10-2] A difference in food web structures with various forest stand ages in headwater streams　 Hiroyuki Togashi (Tohoku NFRI), Naoko Tokuchi (FSERC, Kyoto Univ.)

[S10-3] How does anthropogenic nitrogen input affect the nutrient dynamics and food web structures?: revealed by transect surveys of nitrate isotopes　 Nobuhito Ohte (Univ. Tokyo)

[S10-4] Analysis of stream food web using stable nitrogen isotope ratios of amino acids　 Naoto F. Ishikawa (JAMSTEC)

[S10-5] Biological specimens reveal centurial dynamics of trophic level of fishes in Lake Biwa　 Yoshikazu Kato (CER, Kyoto Univ.)

[S10-6] Stable isotope analysis and food-web unfolding　 Michio Kondoh (Ryukoku Univ.), Takeshi Miki (National Taiwan Univ.) and Satoshi Kato (Ryukoku Univ., Fujirebio INC.)

[S10-7] Mercury, carbon and hydrogen stable isotope tracers for analyses of energy sources in stream food webs　 Jacques C. Finlay (Univ. Minnesota), Martin Tsui (Univ. North Carolina), Mary E. Power (UC Berkeley) and Wendy Palen (Simon Fraser Univ.)

[S10-8] Linkages of forests with river and coastal ocean food webs　 Mary E. Power (UC Berkeley)