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Marine parasites as biological tags in South American Atlantic waters, current status and perspectives

机译:海洋寄生虫作为南美大西洋水域,现状和观点的生物标签

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摘要

Many marine fisheries in South American Atlantic coasts (SAAC) are threatened by overfishing and under serious risk of collapsing. The SAAC comprises a diversity of environments, possesses a complex oceanography and harbours a vast biodiversity that provide an enormous potential for using parasites as biological tags for fish stock delineation, a prerequisite for the implementation of control and management plans. Here, their use in the SAAC is reviewed. Main evidence is derived from northern Argentine waters, where fish parasite assemblages are dominated by larval helminth species that share a low specificity, long persistence and trophic transmission, parasitizing almost indiscriminately all available fish species. The advantages and constraints of such a combination of characteristics are analysed and recommendations are given for future research. Shifting the focus from fish/parasite populations to communities allows expanding the concept of biological tags from local to regional scales, providing essential information to delineate ecosystem boundaries for host communities. This new concept arose as a powerful tool to help the implementation of ecosystem-based approaches to fisheries management, the new paradigm for fisheries science. Holistic approaches, including parasites as biological tags for stock delineation will render valuable information to help insure fisheries and marine ecosystems against further depletion and collapse.
机译:许多海洋渔业在南美大西洋海岸(SAAC)受到过度捕捞和严重崩溃的风险威胁。 SAAC包括多样性环境,拥有复杂的海洋学和港口,这是一种巨大的生物多样性,其为使用寄生虫作为鱼类股票描绘的生物标签提供了巨大潜力,这是实施控制和管理计划的先决条件。在这里,审查他们在SAAC中的使用。主要证据来自北阿根廷水域,其中鱼寄生虫组合由幼虫蠕虫物种主导,含有低特异性,长期持久性和营养速度,几乎不分青红皂白种的鱼类。分析了这种特征的组合的优点和约束,并提供了未来研究的建议。将焦点从鱼类/寄生虫群体转移到社区,允许将生物标签的概念从本地到区域缩放扩展,为主办社区提供了解生态系统界限的基本信息。这个新的概念作为一个强大的工具,可以帮助实施基于生态系统的渔业管理方法,是渔业科学的新范式。包括寄生虫在内的整体方法,作为股票描绘的生物标签将呈现有价值的信息,以帮助确保渔业和海洋生态系统免受进一步消耗和崩溃。

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