Enhanced Subtidal Infrastructure Assessment to Support Inland Finfish Aquaculture

Scotian Halibut是一个内陆养鱼场，位于新斯科舍省西南部的克拉克港。斯科特大比目鱼的岸上水箱里装满了来自海洋的水，通过一条延伸到离岸约1000英尺的20英尺深的管道。进水管的确切位置尚不清楚，海床周围的形态和材料(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，这对潜在的扩张很重要。目前，管道的大小和位置限制了进入斯科特大比目鱼陆上水箱的水的吸收能力，从而限制了该公司扩大业务的能力。在沿海近岸收集高分辨率数据是困难的，因为近岸的浅水性质使得船只很难足够靠近海岸来收集多波束测深，而传统的激光雷达系统只能测量陆地的地形。新斯科舍社区学院的应用地球信息学研究小组(NSCC-AGRG)拥有一台Chiroptera II地形水深激光雷达传感器，该传感器由加拿大创新基金会(CFI)资助购买，能够测量陆地地形和近岸水深测量。除了获得地形和近岸水深测量的高程数据外，该传感器还收集有价值的指标，如反射强度，可用于解释该地区是否存在植被。如果要延长、扩大或移动管道，则在评估管道的位置以及对近岸环境的影响时，这些信息很有价值。此外，来自调查的信息可用于规划部署更大的管道，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.