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首页> 外文期刊>Surveys in Geophysics: An International Review Journal of Geophysics and Planetary Sciences >Estuarine habitat assessment for construction of a submarine transmission line
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Estuarine habitat assessment for construction of a submarine transmission line

机译：建造海底输电线路的河口栖息地评估

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The present paper describes a submarine survey using the acoustic discrimination system QTC VIEW (Series V) as an exploratory tool to adjust final route alignment of a new pipeline. By using acoustic sound survey as an exploratory tool described in this paper to adjust final route alignment of a new pipeline to minimize the environmental impact caused and ultimately to avoid any mitigation measures. The transmission pipeline extended from the shore line of Abu-Qir Bay, on the Mediterranean Sea in Egypt, out to 70 nautical miles at sea (60?m water depth). Four main surface sediment types were defined in the study area, namely fine sand, silty sand, silt and clay. Results of the acoustic classification revealed four acoustic classes. The first acoustic class corresponded to fine sand, absence of shell debris and very poor habitats characteristics. The second acoustic class is predominant in the study area and corresponds to the region occupied by silt. It is also characterized by intermediate diversity of macrobenthic invertebrate community which is mainly characterized by polychaeta. The third acoustic class is characterized by silt to silty clay. It is characterized by a high diversity of macrobenthic invertebrate community which is mainly polychaeta with an intermediate diversity of gastropoda and bivalvia. The final acoustic class is characterized by clay and high occurrence of shell debris of gastropoda, bivalvia and polychaeta.
机译：本文介绍了一种使用声学识别系统QTC VIEW（系列V）作为探索性工具来调整新管道的最终路线对齐方式的海底勘测。通过使用声学勘测作为本文所述的探索性工具来调整新管道的最终路线对准，以最大程度地减少所造成的环境影响并最终避免采取任何缓解措施。传输管道从埃及地中海的阿布奇尔湾岸线延伸至海上70海里（水深60？m）。研究区域定义了四种主要的表面沉积物类型，分别是细砂，粉质砂，粉砂和粘土。声学分类的结果显示了四个声学类别。第一声​​级对应于细沙，没有贝壳碎片和非常差的栖息地特征。第二个声学类别在研究区域中占主导地位，并且对应于淤泥所占据的区域。其特征还在于大型底栖无脊椎动物群落的中间多样性，其主要特征是多斑eta。第三声级的特征是淤泥到粉质粘土。它的特点是大型底栖无脊椎动物群落的高度多样性，主要是多角纲，腹足纲和双壳纲具有中等多样性。最终的声学类别以粘土和腹足纲，双壳纲和多壳纲的壳屑高发为特征。

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