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首页> 外文期刊>Coastal engineering >Low-crested coastal defence structures as artificial habitats for marine life: Using ecological criteria in design
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Low-crested coastal defence structures as artificial habitats for marine life: Using ecological criteria in design

机译：低矮的沿海防御结构作为海洋生物的人工栖息地：在设计中使用生态标准

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Coastal defence structures to protect sedimentary coastlines from erosion and flooding are increasingly common throughout Europe. They will become more widespread over the next 10-30 years in response to rising and stormier seas and accelerating economic development of the coastal zone. Building coastal defences results in the loss and fragmentation of sedimentary habitats and their replacement by artificial rocky habitats that become colonised by algae and marine animals. The engineering design and construction of these structures have received considerable attention. However, the ecological consequences of coastal defences have been less extensively investigated. Furthermore, due to their rapid proliferation, there is a growing need to understand the role of these man-made habitats in the coastal ecosystems in order to implement impact minimisation and/or mitigation measures. As part of the DELOS project, targeted studies were carried out throughout Europe to assess the ecological similarity of low-crested coastal defence structures (LCS) to natural rocky shores and to investigate the influence of LCS design features on the colonising marine epibiota. LCSs can be considered as a relatively poor surrogate of natural rocky shores. Epibiotic communities were qualitatively similar to those on natural rocky shores as both habitats are regulated by the same physical and biological factors. However, there were quantitative differences in the diversity and abundance of epibiota on artificial structures. Typically, epibiotic assemblages were less diverse than rocky shore communities. Also, LCSs offered less structurally complex habitats for colonisation and in some locations experienced higher disturbance than natural shores. We propose several criteria that can be integrated into the design and construction of LCSs to minimise ecological impacts and allow targeted management of diversity and natural living resources.
机译：在整个欧洲，保护防御性海岸线免受侵蚀和洪水泛滥的海岸防御结构越来越普遍。在未来10到30年内，由于海平面上升和暴风雨以及沿海地区经济发展的加速，它们将变得更加广泛。建立沿海防御设施会导致沉积栖息地的丧失和破碎，并被藻类和海洋动物定居的人造岩石栖息地所取代。这些结构的工程设计和施工受到了广泛的关注。但是，关于海岸防御的生态后果尚未得到广泛研究。此外，由于它们的快速扩散，越来越需要了解这些人造栖息地在沿海生态系统中的作用，以便实施影响最小化和/或缓解措施。作为DELOS项目的一部分，在整个欧洲进行了有针对性的研究，以评估低矮沿海防御结构（LCS）与天然岩石海岸的生态相似性，并研究LCS设计特征对殖民海洋生物群的影响。 LCS被认为是天然石质海岸的相对较差的替代品。表生生物群落在质量上与天然石质海岸的相似，因为两个生境都受到相同的物理和生物因素的调节。但是，在人工结构上，附生菌的多样性和丰度存在定量差异。通常，表生生物组合的多样性不如多岩石的海岸社区。同样，LCS为殖民提供了结构上较不复杂的栖息地，并且在某些地区遭受的干扰要比天然海岸高。我们提出了一些可以整合到LCS设计和建造中的标准，以最大程度地减少生态影响并有针对性地管理多样性和自然生物资源。

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