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首页> 外文期刊>Continental Shelf Research: A Companion Journal to Deep-Sea Research and Progress in Oceanography >Using a food-web model to assess the trophic structure and energy flows in Daya Bay, China
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Using a food-web model to assess the trophic structure and energy flows in Daya Bay, China

机译：使用食物网模型评估中国大亚湾的营养结构和能量流

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Daya Bay, is one of the largest and most important semi-closed bays along the southern coast of China. Due to the favorable geomorphological and climatic conditions, this bay has become an important conservation zone of aquatic germplasm resources in South China Sea. To characterize the trophic structure, ecosystem properties and keystone species, a food-web model for Daya Bay has been developed by the means of a mass-balance approach using the Ecopath with Ecosim software. The mean trophic transfer efficiency for the entire ecosystem as a whole is 10.9% while the trophic level His 5.1%. The primary- and secondary-producers, including phytoplankton, zooplankton and micro-zoobenthos demonstrated the important overall impacts on the rest of the groups based on mixed trophic impact (MIT) analysis and are classified as the keystone groups. The analysis of ecosystem attributes indicated that ecosystem of Daya Bay can be categorized as an immature one and/or is in the degraded stage. A comparison of this model with other coastal ecosystems, including Kuosheng Bay, Tongoy Bay, Beibu Gulf and Cadiz Gulf, underpinned that the ecosystem of Daye Bay is an obviously stressed system and is more vulnerable to the external disturbance. In general, our study indicates that a holistic approach is needed to minimize the impacts of anthropogenic activities to ensure the sustainability of the ecosystem in the future. (C) 2015 Elsevier Ltd. All rights reserved.
机译：大亚湾是中国南部沿海最大，最重要的半封闭海湾之一。由于良好的地貌和气候条件，该海湾已成为南海重要的水生种质资源保护区。为了表征营养结构，生态系统特性和关键物种，通过使用带有Ecosim软件的Ecopath软件，通过质量平衡方法开发了大亚湾食物网模型。整个生态系统的平均营养传递效率为10.9％，而营养水平为5.1％。包括浮游植物，浮游动物和微型动物的初级生产者和次级生产者基于混合营养影响（MIT）分析显示出对其余各组的重要总体影响，并被归类为重点。生态系统属性分析表明，大亚湾生态系统可归为未成熟生态系统和/或处于退化阶段。该模型与其他沿海生态系统（包括阔胜湾，通力湾，北部湾和加的斯湾）的比较表明，大冶湾的生态系统是一个明显受压的系统，更容易受到外部干扰。总的来说，我们的研究表明需要采取一种整体方法来最大程度地减少人为活动的影响，以确保未来生态系统的可持续性。 （C）2015 Elsevier Ltd.保留所有权利。

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