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Community structure and trophic interactions in a coastal management and exploitation area for benthic resources in central Chile

机译:智利中部底栖资源沿海管理和开发区的群落结构和营养相互作用

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摘要

Management and Exploitation Areas for Benthic Resources (MEABR) is the most common type of coastal marine protected area in Chile, being used for managing inshore benthic resources since 1991. The structure of the biological community in MEARBs are poorly studied and it is though that a better understanding of this framework is key to sustainability. Here we present a food web model to characterize the benthic community and key functional groups in the MEABR of San Vicente Bay (36 degrees 44'S-73 degrees 09'W), using the Ecopath with Ecosim software (EwE). The Chilean albalone Concholepas concholepas is the main fishing resource in many MEABRs, including the MEABR of San Vicente Bay. The structuring role of main predators is assessed and compared using mixed trophic impacts (MTI) analysis and through calculate an interaction strength (IS) index.
机译:底栖资源管理和开发区(MEABR)是智利最常见的沿海海洋保护区类型,自1991年以来就用于管理近岸底栖生物资源。MEARBs中的生物群落结构研究不多,尽管更好地了解此框架是可持续发展的关键。在这里,我们介绍了一个食物网模型,使用带有Ecosim软件(EwE)的圣维森特湾(36度44'S-73度09'W)MEABR中的底栖动物群落和主要功能群体。在许多MEABR中,包括圣维森特湾的MEABR中,智利鲍鱼Concholepas conholepas是主要的捕捞资源。使用混合营养影响(MTI)分析并通过计算相互作用强度(IS)指数,评估并比较了主要捕食者的结构作用。

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