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Identification of a Soft Coral Garden Candidate Vulnerable Marine Ecosystem (VME) Using Video Imagery, Davis Strait, West Greenland
Frontiers in Marine Science ( IF 2.8 ) Pub Date : 2020-06-29 , DOI: 10.3389/fmars.2020.00460
Stephen Long , Bridget Sparrow-Scinocca , Martin E. Blicher , Nanette Hammeken Arboe , Mona Fuhrmann , Kirsty M. Kemp , Rasmus Nygaard , Karl Zinglersen , Chris Yesson

The term vulnerable marine ecosystem (VME) was introduced to facilitate the spatial management of deep-seas, identifying those habitats vulnerable to anthropogenic disturbance, such as trawling. Consistent interpretation of the VME definition has been hampered by an underlying paucity of knowledge about the nature and distribution of deep-sea habitats. Photographic and video platforms yield data rich, quantifiable imagery to address these knowledge gaps. A low-cost towed benthic video sled has been used to investigate deep-sea habitats and trawling impacts in west Greenland. A review of imagery from multiple cruises highlighted an area where benthic megafauna contributes to notable structural complexity on the continental slope of the Toqqusaq Bank. Quantitative analysis of imagery from this area provides the first description of a soft coral garden habitat and other communities. The coral garden and observed densities are considered in relation to the VME guidelines (FAO, 2009) and wider literature. The study proposes a 486 km2 area spanning ∼60 km of continental slope as a VME. This has direct implications for the management of economically important deep-sea trawl fisheries, which are immediately adjacent. This furthers our knowledge and understanding of VMEs in North Atlantic, in a previously understudied region and demonstrates the utility of a low-cost video sled for identifying and describing VMEs.

中文翻译:

使用视频图像识别软珊瑚花园候选脆弱海洋生态系统 (VME),戴维斯海峡,西格陵兰

引入脆弱海洋生态系统 (VME) 一词是为了促进深海的空间管理,确定易受人为干扰(如拖网捕捞)影响的栖息地。关于深海栖息地的性质和分布的潜在知识匮乏,阻碍了对 VME 定义的一致解释。摄影和视频平台产生数据丰富、可量化的图像来解决这些知识差距。低成本拖曳底栖视频雪橇已被用于调查格陵兰西部的深海栖息地和拖网捕鱼影响。对多次航行的图像的回顾突出显示了一个区域,在该区域,底栖巨型动物对 Toqqusaq 银行大陆坡上显着的结构复杂性做出了贡献。对该地区图像的定量分析提供了对软珊瑚花园栖息地和其他群落的首次描述。珊瑚园和观察到的密度与 VME 指南(粮农组织,2009 年)和更广泛的文献有关。该研究提出了一个 486 平方公里的区域,跨越约 60 公里的大陆坡作为 VME。这对紧邻具有重要经济意义的深海拖网渔业的管理具有直接影响。这进一步加深了我们对北大西洋 VME 的了解和理解,在以前研究不足的地区,并展示了低成本视频雪橇在识别和描述 VME 方面的效用。该研究提出了一个 486 平方公里的区域,跨越约 60 公里的大陆坡作为 VME。这对紧邻具有重要经济意义的深海拖网渔业的管理具有直接影响。这进一步加深了我们对北大西洋 VME 的了解和理解,在以前研究不足的地区,并展示了低成本视频雪橇在识别和描述 VME 方面的效用。该研究提出了一个 486 平方公里的区域,跨越约 60 公里的大陆坡作为 VME。这对紧邻具有重要经济意义的深海拖网渔业的管理具有直接影响。这进一步加深了我们对北大西洋 VME 的了解和理解,在以前研究不足的地区,并展示了低成本视频雪橇在识别和描述 VME 方面的效用。
更新日期:2020-06-29
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