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首页> 外文会议>Assessment of the Fate and Effects of Toxic Agents on Water Resources; NATO Security through Science Series C: Environmental Security >TROPHIC NETWORK MODELS AND PREDICTION OF TOXIC SUBSTANCES ACCUMULATION IN FOOD WEBS
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TROPHIC NETWORK MODELS AND PREDICTION OF TOXIC SUBSTANCES ACCUMULATION IN FOOD WEBS

机译：营养网络模型和食品网中毒物积累的预测

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摘要

The term food web or trophic network defines a set of interconnected food chains by which energy and materials circulate within an ecosystem. The classical food web could be divided into two broad categories: the grazing web, which typically begins with green plants, algae, or photosynthesizing plankton, and the detrital web, which begins with organic debris. In a grazing web, materials typically pass from plants to herbivores to flesh eaters. In a detrital web, materials pass from plant and animal matter to decomposers as fungi and bacteria, then to detritivores, and then to their predators. In water ecosystems, the classical food web is represented by the planktonic and benthic food webs, which are interconnected. Additionally, the "microbial loop" represents an alternative pathway of carbon flow that leads from bacteria to protozoa to metazoa, with dissolved organic matter (DOM) being utilized as substrate by the bacteria, which include nanoplankton (2-20μm in size) and picoplankton (0.2-2 μm in size).
机译：食物网或营养网络一词定义了一组相互联系的食物链，能量和物质通过它们在生态系统中循环。经典食物网可以分为两大类：放牧网（通常以绿色植物，藻类或光合作用的浮游生物开始）和碎屑网（以有机碎片开始）。在放牧的网中，材料通常从植物，草食动物到食肉动物。在碎屑网中，物质从植物和动物物质传到真菌和细菌的分解者，然后传到杀真菌剂，再到它们的捕食者。在水生态系统中，经典食物网以相互连接的浮游和底栖食物网为代表。此外，“微生物环”代表了从细菌到原生动物再到后生动物的碳流动的另一种途径，细菌将溶解的有机物（DOM）用作底物，其中包括纳米浮游生物（大小为2-20μm）和微微浮游生物（尺寸为0.2-2μm）。

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