摘要
To implement the European Directive on conservation of natural habitats (92/43/EEC), government conservation agencies, in this case Scottish Natural Heritage (SNH), must identify areas as possible Special Areas of Conservation (pSACs). To inform the future management and monitoring of these sites, SNH need to know the distribution of habitats and species in Scottish marine SACs. Distribution of marine benthic biotopes (habitats and their associated species) was predicted for two physiographically different pSACs in Scotland: Papa Stour in Shetland, and Lochs Duich, Alsh and Long, NW Scotland. The methodology involved acoustic remote sensing, ground validated by remote video and grab sampling, with analysis and display of results using a PC based GIS. Field surveys were carried out in 1996. A coustic track point data obtained were interpolated to obtain a continuous polygon coverage of the acoustic properties of the seabed within each pSAC area. An acoustic signature for each biotope type, or biotope complex was determined by buffering the ground validation sites, intersecting buffers with acoustic track data, and deriving descriptive statistics for each acoustic variable. Spatial analysis of acoustic and ground validation data within the GIS was then used to produce a continuous coverage polygon map of predicted biotope types for each pSAC.
摘要译文
为了实现欧盟指令对自然栖息地的保护（92/43 / EEC），政府保护机构，在这种情况下，苏格兰自然遗产（SNH）必须识别领域保护（pSACs）可能的特殊领域。通知这些网站的未来的管理和监控，SNH需要知道的栖息地和物种的苏格兰海洋特别评估中心的分布。海洋底栖生境（境及其相关的物种）分布预测在苏格兰2 physiographically不同pSACs：帕帕斯朵尔在设得兰群岛，和湖泊Duich，Alsh和龙，NW苏格兰。该方法涉及声学遥感，地面通过远程视频和抓斗取样进行验证，并进行分析，并使用基于PC的GIS结果显示。实地调查共进行了1996年获得的coustic轨迹点数据进行插值，使获得的每一个PSAC区域内的海底声学特性连续多边形覆盖。声学签名每种生物小区类型，或生物小区复用缓冲地面验证位点，交叉缓冲声学轨道数据来确定，并推导描述性统计每个声波变。然后用GIS内部声学和地面验证数据的空间分析，为每个PSAC预测群落生境类型的连续覆盖多边形地图。
C. Johnston [1] A. Davison [2]. Predicting the distribution of sublittoral benthic biotopes using acoustic remote sensing[J]. Journal of Coastal Conservation, 2002,8(1): 25-33