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首页> 外文期刊>Biodiversity >Biodiversity of submerged aquatic vegetation in Lake Worth Cove, a protected region of Lake Worth Lagoon, Florida
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Biodiversity of submerged aquatic vegetation in Lake Worth Cove, a protected region of Lake Worth Lagoon, Florida

机译：佛罗里达沃思湖泻湖的保护区沃思湾的淹没水生植物生物多样性

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摘要

Lake Worth Lagoon is an urban estuary and the primary estuarine water body in Palm Beach County, Florida. It has been estimated that over 87% of the natural shoreline vegetation has been disturbed in some way - in many cases replaced by seawalls, bulkheads, or subject to dredging or development. A portion of northern Lake Worth Lagoon is protected, located within the boundaries of John D. MacArthur Beach State Park, including the nearly 40 ha, semi-enclosed Lake Worth Cove. In an ongoing project conducted by a variety of stakeholders, including university faculty, undergraduate research assistants, park staff, scientists and volunteers, nondestructive field surveys of submerged aquatic vegetation were initiated within the Cove in 2010. All seven of Florida's seagrass species were found in the Cove, including the federally threatened species Halophila johnsonii (Johnson's seagrass) as well as Ruppia maritima (wigeongrass), a species which has never been documented within the Cove and rarely documented within the lagoon remote from freshwater sources. Within a particular 2 ha zone in the southern cove, all seven species were present. Lake Worth Cove has the highest seagrass diversity of any area in Lake Worth Lagoon and, along with the Indian River Lagoon, has the greatest seagrass diversity of any estuary in the Western Hemisphere. This diversity may be due to the semi-enclosed morphology of the estuary, and likely influenced by the variety of sediment types, depths and currents found within the cove. The protected nature of the area and the natural resource management efforts of the Florida Park Service likely enhance the community makeup and integrity of the submerged habitats. In many other natural areas, the biodiversity and value may not yet be documented, nor even known. Under current developmental pressure, the remnant natural areas within Lake Worth Lagoon are threatened. The ecological loss of these patches within urban landscapes would far outweigh the temporary economic benefit.
机译：沃思湖泻湖是一个城市河口，是佛罗里达州棕榈滩县的主要河口水体。据估计，超过87％的天然海岸线植被受到某种程度的干扰-在许多情况下被海堤，舱壁取代，或受到疏or或发展。沃思湖北部泻湖的一部分受到保护，位于约翰·麦克阿瑟海滩州立公园的边界内，包括近40公顷的半封闭沃思湖。在包括大学教师，本科生研究助理，公园工作人员，科学家和志愿者在内的各种利益相关者的正在进行的项目中，2010年在海湾内开始了对水下水生植物的无损现场调查。在佛罗里达发现了佛罗里达州的所有七个海草物种海湾，包括受到联邦威胁的物种约翰逊嗜盐菌（Johnophils johnsonii）以及马齿Ru Ruppia maritima（wigeongrass），该物种从未在海湾中被记录过，很少在远离淡水源的泻湖中被记录。在南部海湾一个特定的2公顷区域内，所有七个物种均存在。沃思科夫湖是沃思湖泻湖中任何地区的海草多样性最高，并且与印度河泻湖一起在西半球所有河口中海藻的多样性最大。这种多样性可能是由于河口的半封闭形态，并可能受海湾内沉积物类型，深度和水流的变化的影响。该地区的自然保护区和佛罗里达公园管理局的自然资源管理工作可能会增强社区构成和淹没栖息地的完整性。在许多其他自然地区，生物多样性和价值可能尚未记录，甚至未知。在当前的发展压力下，沃思湖泻湖内的自然遗迹受到威胁。这些景观在城市景观中的生态损失将远远超过临时的经济利益。

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