Appendices
Appendix 1: Complementary Assessment Methodology
Kazuhito Murakami and Ken-ichi Shibata
Chiba Institute of Technology, Narashino, Chiba, Japan
Yokohama National University, Yokohama, Kanagawa, Japan
Abstract Impact assessment using the microcosm should be evaluated based on the
P/R ratio, namely, a functional parameter. However, it can be evaluated from the P/R
ratio using structural parameters, such as population measurements. Although the
analytical procedure described in this book outlines the basic principles for environmental assessments of chemicals using the microcosm N-system, the analytical
methods needed for understanding the microcosm are described here. A method of
impact assessment was used that was based on the respiration amount (functional
parameter) as an endpoint other than the biomass (population) and production (P)/
respiration (R) ratio (functional parameter). Additionally, the culture period and
philosophical underpinnings of the influence of this approach are described.
K. Murakami
Chiba Institute of Technology, Narashino, Chiba, Japan
e-mail: kazuhito.murakami@p.chibakoudai.jp
K. Shibata
Yokohama National University, Yokohama, Kanagawa, Japan
e-mail: shibata-kenichi-ym@ynu.jp
© Springer Nature Singapore Pte Ltd. 2020
Y. Inamori (ed.), Microcosm Manual for Environmental Impact Risk Assessment,
https://doi.org/10.1007/978-981-13-6798-4
215
Appendix 1: Complementary Assessment Methodology
Kazuhito Murakami and Ken-ichi Shibata
Chiba Institute of Technology, Narashino, Chiba, Japan
Yokohama National University, Yokohama, Kanagawa, Japan
Abstract Impact assessment using the microcosm should be evaluated based on the
P/R ratio, namely, a functional parameter. However, it can be evaluated from the P/R
ratio using structural parameters, such as population measurements. Although the
analytical procedure described in this book outlines the basic principles for environmental assessments of chemicals using the microcosm N-system, the analytical
methods needed for understanding the microcosm are described here. A method of
impact assessment was used that was based on the respiration amount (functional
parameter) as an endpoint other than the biomass (population) and production (P)/
respiration (R) ratio (functional parameter). Additionally, the culture period and
philosophical underpinnings of the influence of this approach are described.
K. Murakami
Chiba Institute of Technology, Narashino, Chiba, Japan
e-mail: kazuhito.murakami@p.chibakoudai.jp
K. Shibata
Yokohama National University, Yokohama, Kanagawa, Japan
e-mail: shibata-kenichi-ym@ynu.jp
© Springer Nature Singapore Pte Ltd. 2020
Y. Inamori (ed.), Microcosm Manual for Environmental Impact Risk Assessment,
https://doi.org/10.1007/978-981-13-6798-4
215