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Beach changes and associated ecosystem services in Anguilla, West Indies, 1992-2014
Aquatic Ecosystem Health & Management ( IF 0.8 ) Pub Date : 2021-01-01 , DOI: 10.1080/14634988.2019.1628585
Gillian Cambers 1 , Stuart P. Wynne 2
Affiliation  

Analysis of beach profile data over the period 1992–2014 at 14 beaches on mainland Anguilla and the offshore cays of Prickly Pear and Sandy Island, showed an overall erosion trend with a mean erosion rate of −0.51 m yr−1. Eleven beaches showed erosion, while three beaches showed slight accretion. Over the period of measurement nine hurricanes passed close enough to Anguilla to significantly impact the beaches. Analysis of a ten year (2008–2017) record of marine monitoring of fish, marine plants, corals, algae and other invertebrates at 15 sites around Anguilla has shown an 11% drop in coral cover and a 10% increase in algae cover. This contributed to a post Hurricane Luis marine monitoring survey in 1996, which illustrated the dramatic mortality of Anguilla's reef ecosystem that began in the late 1970s with the emergence of white-band disease and continues to this day. An analysis of the changes at each beach shows multiple causal factors including geomorphological adjustments, high swell wave events and hurricanes, hard and soft coastal protection measures, sea level rise and the decline in overall reef heath. Relative importance of each of these factors varied from beach to beach and contributed to the variations in the amount and direction of change at the different locations. The analysis highlights the need to focus on beach and coral reef conservation measures and legislative changes in order for tourism and the economy of Anguilla to thrive.

中文翻译:

1992-2014 年西印度群岛安圭拉的海滩变化和相关的生态系统服务

对 1992 年至 2014 年期间安圭拉大陆 14 个海滩以及仙人球和桑迪岛近海珊瑚礁的海滩剖面数据进行分析,显示总体侵蚀趋势,平均侵蚀率为 -0.51 m yr-1。11 个海滩出现侵蚀,而 3 个海滩出现轻微堆积。在测量期间,九场飓风足够靠近安圭拉,对海滩造成严重影响。对安圭拉周围 15 个地点的鱼类、海洋植物、珊瑚、藻类和其他无脊椎动物的海洋监测十年(2008-2017 年)记录的分析表明,珊瑚覆盖率下降了 11%,藻类覆盖率增加了 10%。这促成了 1996 年飓风路易斯之后的海洋监测调查,该调查说明了安圭拉的巨大死亡率。珊瑚礁生态系统始于 1970 年代后期,随着白带病的出现,一直持续到今天。对每个海滩变化的分析表明,地貌调整、高浪事件和飓风、硬和软海岸保护措施、海平面上升和整体珊瑚礁健康下降等多种因果因素。这些因素中的每一个的相对重要性因海滩而异,并导致不同位置的变化量和方向的变化。分析强调需要关注海滩和珊瑚礁保护措施和立法改革,以促进安圭拉的旅游业和经济蓬勃发展。高涌浪事件和飓风、硬和软的海岸保护措施、海平面上升和整体礁石健康下降。这些因素中的每一个的相对重要性因海滩而异,并导致不同位置的变化量和方向的变化。分析强调需要关注海滩和珊瑚礁保护措施和立法改革,以促进安圭拉的旅游业和经济蓬勃发展。高涌浪事件和飓风、硬和软的海岸保护措施、海平面上升和整体礁石健康下降。这些因素中的每一个的相对重要性因海滩而异,并导致不同位置的变化量和方向的变化。分析强调需要关注海滩和珊瑚礁保护措施和立法改革,以促进安圭拉的旅游业和经济蓬勃发展。
更新日期:2021-01-01
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