Can black coral forests be detected using multibeam echosounder “multi-detect” data?
The black coral Anthipatella wollastoni forms marine animal forests in the mesophotic zone. The spatial extent of black coral forests is not well known in many regions. Due to its protein and chitin skeleton, the coral is difficult to image using acoustic remote sensing techniques compared to corals...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Remote Sensing |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/frsen.2023.988366/full |
| _version_ | 1797900441080561664 |
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| author | Peter Feldens Philipp Held Francisco Otero-Ferrer Lorenzo Bramanti Lorenzo Bramanti Fernando Espino Jens Schneider von Deimling |
| author_facet | Peter Feldens Philipp Held Francisco Otero-Ferrer Lorenzo Bramanti Lorenzo Bramanti Fernando Espino Jens Schneider von Deimling |
| author_sort | Peter Feldens |
| collection | DOAJ |
| description | The black coral Anthipatella wollastoni forms marine animal forests in the mesophotic zone. The spatial extent of black coral forests is not well known in many regions. Due to its protein and chitin skeleton, the coral is difficult to image using acoustic remote sensing techniques compared to corals with carbonate skeletons. Several manufacturers have recently introduced an additional data type to their multibeam echosounders, called “multi-detection,” which provides additional target detections per beam in addition to the primary bottom detection. In this study, we used a Norbit chirp multibeam echosounder in multi-detect mode to acquire up to three targets in each beam in an area of black coral below 45 m depth off the coast of Lanzarote (Canary Islands, Spain). Multi-detect allows features above and below the primary bottom detection to be identified without the need to store and process water-column data. Black coral can be detected by comparing “multi-detection” data with ground truthing by technical divers and underwater cameras. However, the repeatability of the detections is limited and further sensitivity studies are required. |
| first_indexed | 2024-04-10T08:45:00Z |
| format | Article |
| id | doaj.art-a49dd417aa054be5a916f789a36dae40 |
| institution | Directory Open Access Journal |
| issn | 2673-6187 |
| language | English |
| last_indexed | 2024-04-10T08:45:00Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Remote Sensing |
| spelling | doaj.art-a49dd417aa054be5a916f789a36dae402023-02-22T09:26:53ZengFrontiers Media S.A.Frontiers in Remote Sensing2673-61872023-02-01410.3389/frsen.2023.988366988366Can black coral forests be detected using multibeam echosounder “multi-detect” data?Peter Feldens0Philipp Held1Francisco Otero-Ferrer2Lorenzo Bramanti3Lorenzo Bramanti4Fernando Espino5Jens Schneider von Deimling6Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, GermanyMarine Geophysics and Hydroacoustics, Institute of Geosciences, Kiel University, Kiel, GermanyGrupo en Biodiversidad y Conservación (IU-ECOAQUA), Universidad de Las Palmas de Gran Canaria, Telde, SpainCNRS, Laboratoire d’Ecogéochimie des Environnements Benthiques, LECOB, Sorbonne Université, Paris, FranceUnder The Pole Expeditions, Concarneau, FranceGrupo en Biodiversidad y Conservación (IU-ECOAQUA), Universidad de Las Palmas de Gran Canaria, Telde, SpainMarine Geophysics and Hydroacoustics, Institute of Geosciences, Kiel University, Kiel, GermanyThe black coral Anthipatella wollastoni forms marine animal forests in the mesophotic zone. The spatial extent of black coral forests is not well known in many regions. Due to its protein and chitin skeleton, the coral is difficult to image using acoustic remote sensing techniques compared to corals with carbonate skeletons. Several manufacturers have recently introduced an additional data type to their multibeam echosounders, called “multi-detection,” which provides additional target detections per beam in addition to the primary bottom detection. In this study, we used a Norbit chirp multibeam echosounder in multi-detect mode to acquire up to three targets in each beam in an area of black coral below 45 m depth off the coast of Lanzarote (Canary Islands, Spain). Multi-detect allows features above and below the primary bottom detection to be identified without the need to store and process water-column data. Black coral can be detected by comparing “multi-detection” data with ground truthing by technical divers and underwater cameras. However, the repeatability of the detections is limited and further sensitivity studies are required.https://www.frontiersin.org/articles/10.3389/frsen.2023.988366/fullmultibeam echo soundersmulti-detectLanzaroteAnthipatella wollastonimarine animal forestshabitat mapping |
| spellingShingle | Peter Feldens Philipp Held Francisco Otero-Ferrer Lorenzo Bramanti Lorenzo Bramanti Fernando Espino Jens Schneider von Deimling Can black coral forests be detected using multibeam echosounder “multi-detect” data? Frontiers in Remote Sensing multibeam echo sounders multi-detect Lanzarote Anthipatella wollastoni marine animal forests habitat mapping |
| title | Can black coral forests be detected using multibeam echosounder “multi-detect” data? |
| title_full | Can black coral forests be detected using multibeam echosounder “multi-detect” data? |
| title_fullStr | Can black coral forests be detected using multibeam echosounder “multi-detect” data? |
| title_full_unstemmed | Can black coral forests be detected using multibeam echosounder “multi-detect” data? |
| title_short | Can black coral forests be detected using multibeam echosounder “multi-detect” data? |
| title_sort | can black coral forests be detected using multibeam echosounder multi detect data |
| topic | multibeam echo sounders multi-detect Lanzarote Anthipatella wollastoni marine animal forests habitat mapping |
| url | https://www.frontiersin.org/articles/10.3389/frsen.2023.988366/full |
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