New approaches to high-resolution mapping of marine vertical structures

Abstract Vertical walls in marine environments can harbour high biodiversity and provide natural protection from bottom-trawling activities. However, traditional mapping techniques are usually restricted to down-looking approaches which cannot adequately replicate their 3D structure. We combined sid...

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Autores principales:	Katleen Robert, Veerle A. I. Huvenne, Aggeliki Georgiopoulou, Daniel O. B. Jones, Leigh Marsh, Gareth D. O. Carter, Leo Chaumillon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e02bc4da11894456bb0ffd0c5820e7dc
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spelling	oai:doaj.org-article:e02bc4da11894456bb0ffd0c5820e7dc2021-12-02T16:06:31ZNew approaches to high-resolution mapping of marine vertical structures10.1038/s41598-017-09382-z2045-2322https://doaj.org/article/e02bc4da11894456bb0ffd0c5820e7dc2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09382-zhttps://doaj.org/toc/2045-2322Abstract Vertical walls in marine environments can harbour high biodiversity and provide natural protection from bottom-trawling activities. However, traditional mapping techniques are usually restricted to down-looking approaches which cannot adequately replicate their 3D structure. We combined sideways-looking multibeam echosounder (MBES) data from an AUV, forward-looking MBES data from ROVs and ROV-acquired videos to examine walls from Rockall Bank and Whittard Canyon, Northeast Atlantic. High-resolution 3D point clouds were extracted from each sonar dataset and structure from motion photogrammetry (SfM) was applied to recreate 3D representations of video transects along the walls. With these reconstructions, it was possible to interact with extensive sections of video footage and precisely position individuals. Terrain variables were derived on scales comparable to those experienced by megabenthic individuals. These were used to show differences in environmental conditions between observed and background locations as well as explain spatial patterns in ecological characteristics. In addition, since the SfM 3D reconstructions retained colours, they were employed to separate and quantify live coral colonies versus dead framework. The combination of these new technologies allows us, for the first time, to map the physical 3D structure of previously inaccessible habitats and demonstrates the complexity and importance of vertical structures.Katleen RobertVeerle A. I. HuvenneAggeliki GeorgiopoulouDaniel O. B. JonesLeigh MarshGareth D. O. CarterLeo ChaumillonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Katleen Robert Veerle A. I. Huvenne Aggeliki Georgiopoulou Daniel O. B. Jones Leigh Marsh Gareth D. O. Carter Leo Chaumillon New approaches to high-resolution mapping of marine vertical structures
description	Abstract Vertical walls in marine environments can harbour high biodiversity and provide natural protection from bottom-trawling activities. However, traditional mapping techniques are usually restricted to down-looking approaches which cannot adequately replicate their 3D structure. We combined sideways-looking multibeam echosounder (MBES) data from an AUV, forward-looking MBES data from ROVs and ROV-acquired videos to examine walls from Rockall Bank and Whittard Canyon, Northeast Atlantic. High-resolution 3D point clouds were extracted from each sonar dataset and structure from motion photogrammetry (SfM) was applied to recreate 3D representations of video transects along the walls. With these reconstructions, it was possible to interact with extensive sections of video footage and precisely position individuals. Terrain variables were derived on scales comparable to those experienced by megabenthic individuals. These were used to show differences in environmental conditions between observed and background locations as well as explain spatial patterns in ecological characteristics. In addition, since the SfM 3D reconstructions retained colours, they were employed to separate and quantify live coral colonies versus dead framework. The combination of these new technologies allows us, for the first time, to map the physical 3D structure of previously inaccessible habitats and demonstrates the complexity and importance of vertical structures.
format	article
author	Katleen Robert Veerle A. I. Huvenne Aggeliki Georgiopoulou Daniel O. B. Jones Leigh Marsh Gareth D. O. Carter Leo Chaumillon
author_facet	Katleen Robert Veerle A. I. Huvenne Aggeliki Georgiopoulou Daniel O. B. Jones Leigh Marsh Gareth D. O. Carter Leo Chaumillon
author_sort	Katleen Robert
title	New approaches to high-resolution mapping of marine vertical structures
title_short	New approaches to high-resolution mapping of marine vertical structures
title_full	New approaches to high-resolution mapping of marine vertical structures
title_fullStr	New approaches to high-resolution mapping of marine vertical structures
title_full_unstemmed	New approaches to high-resolution mapping of marine vertical structures
title_sort	new approaches to high-resolution mapping of marine vertical structures
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e02bc4da11894456bb0ffd0c5820e7dc
work_keys_str_mv	AT katleenrobert newapproachestohighresolutionmappingofmarineverticalstructures AT veerleaihuvenne newapproachestohighresolutionmappingofmarineverticalstructures AT aggelikigeorgiopoulou newapproachestohighresolutionmappingofmarineverticalstructures AT danielobjones newapproachestohighresolutionmappingofmarineverticalstructures AT leighmarsh newapproachestohighresolutionmappingofmarineverticalstructures AT garethdocarter newapproachestohighresolutionmappingofmarineverticalstructures AT leochaumillon newapproachestohighresolutionmappingofmarineverticalstructures
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New approaches to high-resolution mapping of marine vertical structures

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