Benthic habitat mapping on the Scotian Shelf based on multibeam bathymetry, surficial geology and sea floor photographs
Benthic habitat mapping on the Scotian Shelf based on multibeam bathymetry, surficial geology and sea floor photographs
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DOI：
10.3354/meps219121
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发表时间：
2001-09
影响因子：
2.5
通讯作者：
V. Kostylev;B. Todd;G. Fader;R. Courtney;G. Cameron;R. Pickrill
中科院分区：
文献类型：
--
作者：
V. Kostylev;B. Todd;G. Fader;R. Courtney;G. Cameron;R. Pickrill
本研究提出了一种基于多波束测深数据、相关地球科学信息和来自加拿大大西洋沿岸西南苏格兰大陆架布朗滩的底栖生物数据的综合分析的海底栖息地测绘新方法。根据海底沉积物图和大型底栖动物照片的统计分析，导出并绘制了6种底栖动物的栖息地及其对应的关联。生境的划分主要依据泥沙类型和水深。其他因素包括海底地貌、栖息地复杂性和相对洋流强度。布朗河岸底栖动物栖息地图是一个概念模型，总结了对河岸生态学的认识。本研究强调了多波束测深声纳在解释海底沉积物和推断大面积海底底栖生物栖息地特征方面的应用。
This study presents results of a new approach for sea floor habitat mapping based on an integrated analysis of multibeam bathymetric data, associated geoscientific information, and benthos data from Browns Bank on the southwestern Scotian Shelf, off the Canadian Atlantic coast. Based on sea floor sediment maps and statistical analysis of megabenthos determined from photographs, 6 habitats and corresponding associations of benthos were derived and mapped. The habitats are dis- tinguished primarily on the basis of sediment type and water depth. Additional factors are sea floor geomorphology, habitat complexity, and relative current strength. A Browns Bank benthic habitat map is developed as a conceptual model summarizing the understanding of the bank ecology. This study highlights the utility of multibeam bathymetric sonar for interpretation of sea floor sediments and for extrapolating benthic habitat characteristics across large areas of sea floor.