SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Ambiguous influences of omnivorous fish on trophic cascade and alternative states: Implications for biomanipulation from an ecological model
Li, Junmin; Huang, Ping; Zhao, Zhuangming; Zhang, Renduo; jli@scsio.ac.cn
2015
Source PublicationAQUATIC ECOSYSTEM HEALTH & MANAGEMENT
Volume18Issue:1Pages:105-113
AbstractAn ecological model was developed to systematically analyze the comprehensive influence of omnivory level and predation intensity of fish on the dynamic state and strength of trophic cascade of a lake ecosystem. Results showed that a higher fish omnivory level reduced the strength of trophic cascade and increased the occurrence of alternative states, while an increase in predation intensity resulted in opposite effects. With the combination of these two factors, the occurrence of alternative states was dependent on the relative increase in the predation intensity. The model was further applied to a subtropical shallow lake in China. Modeling results revealed that the heavy stock of omnivorous fish in the lake increased the occurrence of alternative states and decreased the strength of trophic cascade. Results indicated that the long-term effect of biomanipulation would be significant and therefore high rates of fish removal would be required. The information from this study indicated the importance of understanding the dynamic state and strength of trophic cascade when predicting the long-term effects of biomanipulation.
Department[Li, Junmin] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Li, Junmin; Huang, Ping; Zhang, Renduo] Sun Yat Sen Univ, Sch Environm Sci & Engn, Dept Environm Sci, Guangzhou 510275, Guangdong, Peoples R China; [Zhao, Zhuangming] South China Inst Environm Sci, Minist Environm Protect PR China, Guangzhou 510655, Guangdong, Peoples R China ; LTO
KeywordOmnivory Asian Carp Predation Intensity Dynamic State Comprehensive Aquatic Simulation Model
Subject AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15012
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorjli@scsio.ac.cn
Recommended Citation
GB/T 7714
Li, Junmin,Huang, Ping,Zhao, Zhuangming,et al. Ambiguous influences of omnivorous fish on trophic cascade and alternative states: Implications for biomanipulation from an ecological model[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2015,18(1):105-113.
APA Li, Junmin,Huang, Ping,Zhao, Zhuangming,Zhang, Renduo,&jli@scsio.ac.cn.(2015).Ambiguous influences of omnivorous fish on trophic cascade and alternative states: Implications for biomanipulation from an ecological model.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,18(1),105-113.
MLA Li, Junmin,et al."Ambiguous influences of omnivorous fish on trophic cascade and alternative states: Implications for biomanipulation from an ecological model".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 18.1(2015):105-113.
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