Enhanced Subtidal Infrastructure Assessment to Support Inland Finfish Aquaculture

苏格兰大比目鱼（Scotian Halibut）是一个内陆渔场，位于新斯科舍省西南部的克拉克港（Clark's Harbour）。苏格兰大比目鱼通过一条在20英尺深的水中延伸约1000英尺的管道，将海洋中的水注入其陆上水箱。进水管的确切位置尚不清楚，海底周围的形态和物质（岩石、沙子、泥浆）也不清楚。因此，他们不确定管道是否处于理想位置，这对潜在的膨胀很重要。目前，管道的大小和位置限制了水进入斯科蒂亚大比目鱼的陆上坦克的摄入量，从而限制了该公司扩大其业务的能力。在沿海近海岸中的高分辨率数据收集是困难的，因为近海岸的浅的性质使得船只足够接近海岸以收集多波束测深是危险的，并且传统的激光雷达系统仅能够勘测陆地的地形。新斯科舍省社区学院的应用地理信息学研究小组（NSCC-AGRG）拥有一个翼手目II地形测深激光雷达传感器，通过加拿大创新基金会（CFI）的资助获得，该传感器能够测量陆地地形以及近岸测深。除了获得地形和近岸水深测量的高程数据外，传感器还收集有价值的指标，如反射强度，可用于解释该地区植被的存在。在评估管道位置以及管道延伸、扩大或移动对近岸环境的影响时，这些信息非常有价值。此外，来自调查的信息可用于计划部署更大的管道，以进一步扩大其业务。

Scotian Halibut is an inland fish farm located in Clark's Harbour, in southwest Nova Scotia. Scotian Halibut fills its onshore tanks with water from the ocean via a pipe extending approximately 1000' offshore in 20' of water. The exact location of the intake pipe is not known, nor is the surrounding morphology of the seabed and materials (rock, sand, mud) known. Therefore, they are not sure that the pipe is in the ideal location, which is important for potential expansion. Currently, the size and location of the pipe limits the intake capacity of water into Scotian Halibut's onshore tanks, thus limiting the company's ability to expand its operations. High resolution data collection in the coastal nearshore is difficult as the shallow nature of the nearshore makes it dangerous for boats to come close enough to shore to collect multibeam bathymetry, and traditional lidar systems are capable of surveying the topography of the land only. Nova Scotia Community College's Applied Geomatics Research Group (NSCC-AGRG) own a Chiroptera II topo-bathymetric lidar sensor, acquired through funding from the Canada Foundation for Innovation (CFI), which is capable of surveying the topography of the land as well as the nearshore bathymetry. In addition to obtaining elevation data for the topography and nearshore bathymetry, the sensor collects valuable metrics such as intensity of the reflectance which can be used to interpret the presence of vegetation in the area. This information is valuable when assessing the location of the pipe and the impact to the nearshore environment if the pipe is to be extended, enlarged, or moved. In addition, information from the survey can be used to plan for the deployment of a larger pipe to further expand its operations.