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首页> 外文期刊>Marine ecology progress series >Tracking recruitment pathways of Chromis viridis in the Gulf of Aqaba using otolith chemistry
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Tracking recruitment pathways of Chromis viridis in the Gulf of Aqaba using otolith chemistry

机译：使用耳石化学追踪亚喀巴湾中的绿铬鱼的募集途径

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Connectivity among coral reef fish populations is a key factor in governing the structure and dynamics of marine communities and should therefore be taken into account in management and conservation plans. Determining connectivity patterns is a challenging task, since direct tracking of larval trajectories is essentially impossible. During the last decade, however, there have been some significant achievements in the form of indirect tracking of larval sources. Some of these are based on trace elements incorporated into the otoliths of dispersing larvae, which may assist in the identification of natal origins and provide some information about larval trajectories. In this study an attempt was made to infer the dispersal trajectories of larval Chromis viridis (Pomacentridae) that recruit to populations along the northern Gulf of Agaba (Red Sea). The patterns of trace-element signals found in otoliths (identified by laser ablation inductively coupled plasma mass spectrometry), complemented by the spatial structure in pelagic larval durations (PLD), suggest that the northern populations (i.e. Aqaba and Eilat) of C. viridis are seeded by larvae that disperse along more than one route from sources along the Saudi and Sinai (Egyptian) coasts. The study findings imply that any sound management plans or conservation measures for coral reefs in the Gulf of Aqaba should be regional, and should ideally involve collaboration among all the adjacent countries.
机译：珊瑚礁鱼类种群之间的连通性是支配海洋社区结构和动态的关键因素，因此在管理和保护计划中应予以考虑。确定连接方式是一项具有挑战性的任务，因为直接跟踪幼虫的轨迹基本上是不可能的。但是，在过去十年中，以间接跟踪幼虫来源的形式取得了一些重大成就。其中一些是基于掺入分散幼虫耳石中的微量元素，这可能有助于鉴定出生起源并提供有关幼虫轨迹的一些信息。在这项研究中，试图推断出招募到Agaba北部海湾（红海）人口的幼体Chromis viridis（Pomacentridae）的扩散轨迹。在耳石中发现的痕量元素信号的模式（通过激光消融电感耦合等离子体质谱法确定），并在浮游幼体持续时间（PLD）中的空间结构进行了补充，表明北部的C. viridis种群（即亚喀巴和埃拉特）是由幼虫播种的，这些幼虫从沙特和西奈（埃及）沿岸的来源沿多种途径扩散。该研究结果表明，亚喀巴湾的珊瑚礁任何合理的管理计划或保护措施都应是区域性的，理想情况下应包括所有邻国之间的合作。

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