Mapping of inshore marine habitats in south-eastern Tasmania for marine protected area planning and marine management

Mapping of inshore marine habitats in south-eastern Tasmania for marine protected area planning and marine management
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绘制塔斯马尼亚东南部近岸海洋栖息地地图,用于海洋保护区规划和海洋管理

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发表时间:
2001
期刊:
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通讯作者:
A. Hirst
A. Hirst
中科院分区:
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文献类型:
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作者:
J. Beard;C. Crawford;A. Hirst

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目前正在建立国家海洋保护区系统(NRSMPA)。 在州政府和联邦政府的合作下, 水平在塔斯马尼亚州,国家海洋保护区战略阐述了这一政策 (MMIC 2001年),承认需要一个全面、充分和 国家沃茨海洋保护区的代表性(CAR)系统。州和联邦 海洋保护区执行战略都认识到, 根据CAR,需要对海洋栖息地进行彻底的清查,以确保选定的区域 是合适的。 这项研究提出了塔斯马尼亚沃茨的第一个这样的清单,详细 布鲁尼生物区内海洋生境的测绘。这项研究有两个目标, 绘制布鲁尼生物区的海洋栖息地地图,并利用这些信息, 确定符合CAR要求的候选MPA。塔斯马尼亚沃茨 包括9个生物区,布鲁尼地区被确定为优先绘图, 由于其高度的海洋特有性、高度的栖息地多样性和更迫切的需求, 鉴于该地区人口密度高,与 首府霍巴特。 绘制了比例尺为1:25 000的地图, 浅近岸沿海沃茨至40 m深度等高线。制作地图 涉及从配备彩色的小型船只上对该地区进行广泛的实地调查, 探测器和差分GPS位置、深度和底型连续监测, 使用专门为此任务开发的计算机应用程序进行真实的实时登录。常规视频 进行了空投,以验证对探测器信号的解释。航空照片 的资料,以提供有关近岸生境的更详细资料。 水的清澈度允许的地方。对于大多数海岸, 照片被限制在10米的深度。这些信息经过整理, 使用地理信息系统应用程序ArcView绘制地图,允许对栖息地进行详细分析 按深度和曝光度分布。 栖息地地图被用来建议一些潜在的MPA位置, 将保护这一生物区内的各种海洋生境。 也有足够的信息可供讨论MPA的替代方案, 塔斯马尼亚海洋法实施期间利益攸关方谈判的一部分 保护区战略(2001年)。
A National System of Marine Protected Areas (NRSMPA) is currently being established in Australia with the collaboration of governments at the State and Federal level. In Tasmania this policy is articulated in the State Marine Protected Area Strategy (MMIC 2001) that recognises the need for a Comprehensive, Adequate and Representative (CAR) system of MPAs for State waters. The State and Commonwealth MPA implementation strategies each recognise that for MPAs to be established on a CAR basis, a thorough inventory of marine habitats is needed to ensure areas selected are appropriate. This study presents the first such inventory for Tasmanian waters, with detailed mapping of marine habitats within the Bruny Bioregion. The study had two objectives, to map the marine habitats in the Bruny Bioregion and to use this information to identify candidate MPAs that fulfil CAR requirements. While Tasmanian waters include nine bioregions, the Bruny region was identified as a priority for mapping due to its high degree of marine endemism, high habitat diversity and the more urgent need for protection given the high population density of the region in close association with the capital city, Hobart. Maps were produced at a scale of 1:25,000, showing the principal habitat types in shallow inshore coastal waters to the 40 m depth contour. The production of maps involved extensive field surveys of the region from small vessels equipped with colour sounders and differential GPS. Position, depth and bottom type were continuously logged in real time using a computer application developed for this task. Regular video drops were conducted to validate interpretation of sounder signals. Aerial photographs were scanned and rectified to provide more detailed information on habitats in inshore areas where water clarity allowed. For most of the coast the utility of aerial photographs was limited to a depth of ten metres. The information was collated and mapped using the GIS application ArcView, allowing detailed analysis of habitat distribution by depth and exposure. The habitat maps were then used to suggest a number of potential MPA locations that would protect a comprehensive range of marine habitats within this bioregion. Sufficient information is also available for discussion of alternative MPA options as part of stakeholder negotiations during the implementation of the Tasmanian Marine Protected Area Strategy (2001).