Abstract Biological invasions are a worldwide threat to the aquatic systems and have the potential to homogenize entire foodwebs and shift species abundance distributions to more skewed ones. Invasion impacts include effects on the foodweb structure and ecosystem functioning leading to a loss in native fish biodiversity and commercially important fisheries in many open water systems. The impacts of invasives are generally devastating as they spread in the foodweb with each species potentially interacting with multiple species. The foodweb modeling studies conducted in different inland aquatic ecosystems show that not all exotics cause a detrimental effect on the resilience of an ecosystem. Information on the foodweb structure and ecosystem properties is a prerequisite for formulating management protocols for conserving biodiversity, enhancement programmes and sustaining fisheries. The present paper reviews the impacts of invasive fishes in Indian aquatic ecosystems in the context of a changing foodweb scenario due to exotic fish species invasions. The information generated here could be applied for future research on similar ecosystems for deducing management actions.

中文翻译：

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在入侵物种的威胁下改变印度水生生态系统的食物网：概述

摘要生物入侵是对水生系统的全球威胁，并有可能使整个食物网同质化并将物种丰度分布转变为更偏斜的分布。入侵影响包括对食物网结构和生态系统功能的影响，导致本地鱼类生物多样性和许多开放水域系统中具有商业重要性的渔业丧失。入侵者的影响通常是毁灭性的，因为它们在食物网中传播，每个物种都可能与多个物种相互作用。在不同内陆水生生态系统中进行的食物网模型研究表明，并非所有外来物种都会对生态系统的恢复力造成不利影响。关于食物网结构和生态系统特性的信息是制定保护生物多样性的管理协议的先决条件，加强计划和维持渔业。本文回顾了由于外来鱼类入侵导致食物网情景发生变化的背景下入侵鱼类对印度水生生态系统的影响。这里生成的信息可用于未来对类似生态系统的研究，以推断管理行动。