您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Modeling Trophic Structure and Energy Flows in a Coastal Artificial Ecosystem Using Mass-Balance Ecopath Model

文献类型： 外文期刊

作者： Xu, Shannan 1 ; Chen, Zuozhi 2 ; Li, Shiyu 1 ; He, Peimin 3 ;

作者机构： 1.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China

2.Chinese Acad Fishery Sci, Key Lab Mariculture Ecol & Qual Control, Minist Agr, S China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China

3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China

关键词： Artificial ecosystem;Detrital flows;Ecopath model;Energy transfer;Trophic level;Trophic structure

期刊名称：ESTUARIES AND COASTS （ 影响因子：2.976； 五年影响因子：3.186 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Using a large-scale enclosed sea area in northern Hangzhou Bay as a case study, the trophic interactions, energy flows, and ecosystem properties of a coastal artificial ecosystem were analyzed by ecotrophic modeling using Ecopath with Ecosim software (EwE, 5.1 version). The model consists of 13 functional groups: piscivorous fish, benthic-feeding fish, zooplanktivorous fish, herbivorous fish, crabs, shrimp, mollusca, infauna, carnivorous zooplankton, herbivorous zooplankton, macrophytes, phytoplankton, and detritus. Input information for the model was gathered from published and unpublished reports and from our own estimates during the period 2006-2007. Results show that the food web in the enclosed sea area was dominated by a detritus pathway. The trophic levels of the groups varied from 1.00 for primary producers and detritus to 3.90 for piscivorous fish in the coastal artificial system. Using networkanalysis, the system network was mapped into a linear food chain, and five discrete trophic levels were found with a mean transfer efficiency of 9.8% from detritus and 9.4% from primary producer within the ecosystem. The geometric mean of the trophic transfer efficiencies was 9.6%. Detritus contributed 57% of the total energy flux, and the other 43% came from primary producers. The ecosystem maturity indices-total primary production/total respiration, Finn's cycling index, and ascendancy-were 2.56, 25.0%, and 31.0%, respectively, showing that the coastal artificial system is at developmental stage according to Odum's theory of ecosystem development. Generally, this is the first trophic model of a large-scale artificial sea enclosure in China and provides some useful insights into the structure and functioning of the system.

  • 相关文献

[1]An ecological model of the artificial ecosystem (northern Hangzhou Bay, China): analysis of ecosystem structure and fishing impacts. Chen, Zuozhi,Xu, Shannan,He, Peimin.

[2]Cascade effects of crop species richness on the diversity of pest insects and their natural enemies. Shi PeiJian,Zhao ZiHua,Ouyang Fang,Ge Feng,Cao HaiFeng,Shi PeiJian,Jin XianShi,Hui Cang,Men XingYuan,Li, B. Larry. 2014

[3]Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China. Quan Weimin,Shi Liyan,Chen Yaqu. 2010

[4]Effects of crop species richness on pest-natural enemy systems based on an experimental model system using a microlandscape. Zhao ZiHua,Shi PeiJian,Ouyang Fang,Ge Feng,Shi PeiJian,Men XingYuan. 2013

[5]Decadal-scale variations of trophic levels at high trophic levels in the Yellow Sea and the Bohai Sea ecosystem. Zhang, B.,Tang, Q.,Jin, X.. 2007

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台