Lists of seamounts and knolls in different formats, 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
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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2011
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.757564 https://doi.pangaea.de/10.1594/PANGAEA.757564 |
id |
ftdatacite:10.1594/pangaea.757564 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.757564 2023-05-15T18:25:58+02:00 Lists of seamounts and knolls in different formats, 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 Yesson, Chris Clark, M R Taylor, M Rogers, A D 2011 application/zip https://dx.doi.org/10.1594/pangaea.757564 https://doi.pangaea.de/10.1594/PANGAEA.757564 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.dsr.2011.02.004 https://dx.doi.org/10.1080/01490410903297766 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Ecosystem based management of corals, fish and fisheries in the deep waters of Europe and beyond CoralFISH Supplementary Collection of Datasets Collection article 2011 ftdatacite https://doi.org/10.1594/pangaea.757564 https://doi.org/10.1016/j.dsr.2011.02.004 https://doi.org/10.1080/01490410903297766 2022-02-08T16:24:46Z 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. : The data contain information about the seamount and knoll features in shapefile, kml and ascii format. These features are derived computationally from a global 30 second (~1km) bathymetry grid (Becker, JJ et al. 2009). Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) New Zealand Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ecosystem based management of corals, fish and fisheries in the deep waters of Europe and beyond CoralFISH |
spellingShingle |
Ecosystem based management of corals, fish and fisheries in the deep waters of Europe and beyond CoralFISH Yesson, Chris Clark, M R Taylor, M Rogers, A D Lists of seamounts and knolls in different formats, 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 |
topic_facet |
Ecosystem based management of corals, fish and fisheries in the deep waters of Europe and beyond CoralFISH |
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. : The data contain information about the seamount and knoll features in shapefile, kml and ascii format. These features are derived computationally from a global 30 second (~1km) bathymetry grid (Becker, JJ et al. 2009). |
format |
Article in Journal/Newspaper |
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, 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 |
title_short |
Lists of seamounts and knolls in different formats, 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 |
title_full |
Lists of seamounts and knolls in different formats, 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 |
title_fullStr |
Lists of seamounts and knolls in different formats, 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 |
title_full_unstemmed |
Lists of seamounts and knolls in different formats, 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 |
title_sort |
lists of seamounts and knolls in different formats, 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 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.757564 https://doi.pangaea.de/10.1594/PANGAEA.757564 |
geographic |
New Zealand Southern Ocean |
geographic_facet |
New Zealand Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1016/j.dsr.2011.02.004 https://dx.doi.org/10.1080/01490410903297766 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.757564 https://doi.org/10.1016/j.dsr.2011.02.004 https://doi.org/10.1080/01490410903297766 |
_version_ |
1766207707034943488 |