Lists of seamounts and knolls in different formats
Seamounts and knolls are 'undersea mountains', the former rising more than 1000 m from the sea floor. These features provide important habitats for aquatic predators, demersal deep-sea fish and benthic invertebrates. However most seamounts have not been surveyed and their numbers and locat...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.757564 2024-09-15T18:37:23+00:00 Lists of seamounts and knolls in different formats Yesson, Chris Clark, M R Taylor, M Rogers, A D MEDIAN LATITUDE: -2.135194 * MEDIAN LONGITUDE: 179.043386 * SOUTH-BOUND LATITUDE: -77.795264 * WEST-BOUND LONGITUDE: 2.762500 * NORTH-BOUND LATITUDE: 84.992236 * EAST-BOUND LONGITUDE: -7.208865 2011 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.757564 https://doi.org/10.1594/PANGAEA.757564 en eng PANGAEA Becker, J J; Sandwell, D T; Smith, W H F; Braud, J; Binder, B; Depner, J; Fabre, Denis; Factor, J; Ingalls, S; Kim, S-H; Ladner, R; Marks, K; Nelson, S; Pharaoh, A; Trimmer, R; von Rosenberg, J; Wallace, G; Weatherall, Pauline (2009): Global bathymetry and elevation data at 30 Arc seconds resolution: SRTM30_PLUS. Marine Geodesy, 32(4), 355-371, https://doi.org/10.1080/01490410903297766 https://doi.pangaea.de/10.1594/PANGAEA.757564 https://doi.org/10.1594/PANGAEA.757564 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Yesson, Chris; Clark, M R; Taylor, M; Rogers, A D (2011): The global distribution of seamounts based on 30-second bathymetry data. Deep Sea Research Part I: Oceanographic Research Papers, 58(4), 442-453, https://doi.org/10.1016/j.dsr.2011.02.004 CoralFISH Ecosystem based management of corals fish and fisheries in the deep waters of Europe and beyond dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.75756410.1016/j.dsr.2011.02.00410.1080/01490410903297766 2024-07-24T02:31:20Z Seamounts and knolls are 'undersea mountains', the former rising more than 1000 m from the sea floor. These features provide important habitats for aquatic predators, demersal deep-sea fish and benthic invertebrates. However most seamounts have not been surveyed and their numbers and locations are not well known. Previous efforts to locate and quantify seamounts have used relatively coarse bathymetry grids. Here we use global bathymetric data at 30 arc-second resolution to identify seamounts and knolls. We identify 33,452 seamounts and 138,412 knolls, representing the largest global set of identified seamounts and knolls to date. We compare estimated seamount numbers, locations, and depths with validation sets of seamount data from New Zealand and Azores. This comparison indicates the method we apply finds 94% of seamounts, but may overestimate seamount numbers along ridges and in areas where faulting and seafloor spreading creates highly complex topography. The seamounts and knolls identified herein are significantly geographically biased towards areas surveyed with ship-based soundings. As only 6.5% of the ocean floor has been surveyed with soundings it is likely that new seamounts will be uncovered as surveying improves. Seamount habitats constitute approximately 4.7% of the ocean floor, whilst knolls cover 16.3%. Regional distribution of these features is examined, and we find a disproportionate number of productive knolls, with a summit depth of <1.5 km, located in the Southern Ocean. Less than 2% of seamounts are within marine protected areas and the majority of these are located within exclusive economic zones with few on the High Seas. The database of seamounts and knolls resulting from this study will be a useful resource for researchers and conservation planners. Other/Unknown Material Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(2.762500,-7.208865,84.992236,-77.795264) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
CoralFISH Ecosystem based management of corals fish and fisheries in the deep waters of Europe and beyond |
spellingShingle |
CoralFISH Ecosystem based management of corals fish and fisheries in the deep waters of Europe and beyond Yesson, Chris Clark, M R Taylor, M Rogers, A D Lists of seamounts and knolls in different formats |
topic_facet |
CoralFISH Ecosystem based management of corals fish and fisheries in the deep waters of Europe and beyond |
description |
Seamounts and knolls are 'undersea mountains', the former rising more than 1000 m from the sea floor. These features provide important habitats for aquatic predators, demersal deep-sea fish and benthic invertebrates. However most seamounts have not been surveyed and their numbers and locations are not well known. Previous efforts to locate and quantify seamounts have used relatively coarse bathymetry grids. Here we use global bathymetric data at 30 arc-second resolution to identify seamounts and knolls. We identify 33,452 seamounts and 138,412 knolls, representing the largest global set of identified seamounts and knolls to date. We compare estimated seamount numbers, locations, and depths with validation sets of seamount data from New Zealand and Azores. This comparison indicates the method we apply finds 94% of seamounts, but may overestimate seamount numbers along ridges and in areas where faulting and seafloor spreading creates highly complex topography. The seamounts and knolls identified herein are significantly geographically biased towards areas surveyed with ship-based soundings. As only 6.5% of the ocean floor has been surveyed with soundings it is likely that new seamounts will be uncovered as surveying improves. Seamount habitats constitute approximately 4.7% of the ocean floor, whilst knolls cover 16.3%. Regional distribution of these features is examined, and we find a disproportionate number of productive knolls, with a summit depth of <1.5 km, located in the Southern Ocean. Less than 2% of seamounts are within marine protected areas and the majority of these are located within exclusive economic zones with few on the High Seas. The database of seamounts and knolls resulting from this study will be a useful resource for researchers and conservation planners. |
format |
Other/Unknown Material |
author |
Yesson, Chris Clark, M R Taylor, M Rogers, A D |
author_facet |
Yesson, Chris Clark, M R Taylor, M Rogers, A D |
author_sort |
Yesson, Chris |
title |
Lists of seamounts and knolls in different formats |
title_short |
Lists of seamounts and knolls in different formats |
title_full |
Lists of seamounts and knolls in different formats |
title_fullStr |
Lists of seamounts and knolls in different formats |
title_full_unstemmed |
Lists of seamounts and knolls in different formats |
title_sort |
lists of seamounts and knolls in different formats |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.757564 https://doi.org/10.1594/PANGAEA.757564 |
op_coverage |
MEDIAN LATITUDE: -2.135194 * MEDIAN LONGITUDE: 179.043386 * SOUTH-BOUND LATITUDE: -77.795264 * WEST-BOUND LONGITUDE: 2.762500 * NORTH-BOUND LATITUDE: 84.992236 * EAST-BOUND LONGITUDE: -7.208865 |
long_lat |
ENVELOPE(2.762500,-7.208865,84.992236,-77.795264) |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Supplement to: Yesson, Chris; Clark, M R; Taylor, M; Rogers, A D (2011): The global distribution of seamounts based on 30-second bathymetry data. Deep Sea Research Part I: Oceanographic Research Papers, 58(4), 442-453, https://doi.org/10.1016/j.dsr.2011.02.004 |
op_relation |
Becker, J J; Sandwell, D T; Smith, W H F; Braud, J; Binder, B; Depner, J; Fabre, Denis; Factor, J; Ingalls, S; Kim, S-H; Ladner, R; Marks, K; Nelson, S; Pharaoh, A; Trimmer, R; von Rosenberg, J; Wallace, G; Weatherall, Pauline (2009): Global bathymetry and elevation data at 30 Arc seconds resolution: SRTM30_PLUS. Marine Geodesy, 32(4), 355-371, https://doi.org/10.1080/01490410903297766 https://doi.pangaea.de/10.1594/PANGAEA.757564 https://doi.org/10.1594/PANGAEA.757564 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.75756410.1016/j.dsr.2011.02.00410.1080/01490410903297766 |
_version_ |
1810481757576757248 |