Lake restoration in terms of ecological resilience: a numerical study of biomanipulations under bistable conditions

T. Amemiya, T. Enomoto, Axel Rossberg, N. Takamura, K. Itoh

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

An abstract version of the comprehensive aquatic simulation model (CASM) is found to exhibit bistability under intermediate loading of nutrient input, supporting the alternative-stable-states theory and field observations for shallow lakes. Our simulations of biomanipulations under the bistable conditions reveal that a reduction in the abundance of zooplanktivorous fish cannot switch the system from a turbid to a clear state. Rather, a direct reduction of phytoplankton and detritus was found to be most effective to make this switch in the present model. These results imply that multiple manipulations may be effective for practical restorations of lakes. We discuss the present results of biomanipulations in terms of ecological resilience in multivariable systems or natural systems.
Original languageEnglish
Article number3
JournalECOLOGY AND SOCIETY
Volume10
Issue number2
Publication statusPublished - 2005

ASJC Scopus subject areas

  • Nature and Landscape Conservation

Fingerprint

Dive into the research topics of 'Lake restoration in terms of ecological resilience: a numerical study of biomanipulations under bistable conditions'. Together they form a unique fingerprint.

Cite this