Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data
Ocean Sciences Meeting (OSM), 16-21 February 2020, San Diego, CA, USA Ocean Networks Canada (ONC) operates large seafloor cabled observatories in the Arctic and NE Pacific, with some of its long-term observations nearly approaching 15 years of archived data. The seafloor network of 850+ km of backbo...
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ftcsic:oai:digital.csic.es:10261/225483 2024-02-11T10:01:10+01:00 Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data de Leo, Fabio Garner, Grant Puig, Pere Paradis Vilar, Sarah 2020-02-19 http://hdl.handle.net/10261/225483 https://doi.org/10.13140/RG.2.2.25252.09605 en eng https://doi.org/10.13140/RG.2.2.25252.09605 Sí Ocean Sciences Meeting (2020) http://hdl.handle.net/10261/225483 doi:10.13140/RG.2.2.25252.09605 open póster de congreso http://purl.org/coar/resource_type/c_6670 2020 ftcsic https://doi.org/10.13140/RG.2.2.25252.09605 2024-01-16T11:00:44Z Ocean Sciences Meeting (OSM), 16-21 February 2020, San Diego, CA, USA Ocean Networks Canada (ONC) operates large seafloor cabled observatories in the Arctic and NE Pacific, with some of its long-term observations nearly approaching 15 years of archived data. The seafloor network of 850+ km of backbone cables connects > 50 instrumented sites (>400 oceanographic instruments, >5,000 sensors), in habitats ranging from temperate coastal fjords, ice-covered Arctic bays, to deep-sea canyons, abyssal plains and hydrothermal vents. In 2016, ONC initiated a new monitoring program aiming at studying sediment transport processes off the shelf and slope of Vancouver Island, British Columbia. This area is targeted by a commercial bottom trawling fishery of rockfish. Bottom trawling is pervasive along the world’s continental shelves and slopes, and known for triggering sediment resuspension due to the physical contact of heavy fishing gear to the seafloor. Three moorings were deployed near the head, northern flank and axis of Barkley Canyon (BC), equipped with turbidity sensors, current meters and sediment traps, with the objective of capturing sediment resuspension plumes attributed to fishing, and its potential transport via BC. The NEPTUNE cabled observatory provided additional environmental context with long-term observations of bottom currents and turbidity. Automatic Information System (AIS) vessel tracking data was used to determine the extent of the ‘fishing ground footprint’ near BC, and to serve as ground-truthing for the mooring data. Sea surface meteorological and oceanographic conditions (namely wind speed/direction and significant wave height/period) were obtained from the La Perouse buoy station in order to establish the shelf and upper slope natural variability of storm-induced sediment resuspension events. Our preliminary results identified the seasonal patterns of fishing activity with vessels concentrating in and around BC mostly in May and June, with clear signals of fishing-induced resuspension ... Still Image Arctic Digital.CSIC (Spanish National Research Council) Arctic British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Fishing Ground ENVELOPE(-55.848,-55.848,49.550,49.550) Pacific |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
Ocean Sciences Meeting (OSM), 16-21 February 2020, San Diego, CA, USA Ocean Networks Canada (ONC) operates large seafloor cabled observatories in the Arctic and NE Pacific, with some of its long-term observations nearly approaching 15 years of archived data. The seafloor network of 850+ km of backbone cables connects > 50 instrumented sites (>400 oceanographic instruments, >5,000 sensors), in habitats ranging from temperate coastal fjords, ice-covered Arctic bays, to deep-sea canyons, abyssal plains and hydrothermal vents. In 2016, ONC initiated a new monitoring program aiming at studying sediment transport processes off the shelf and slope of Vancouver Island, British Columbia. This area is targeted by a commercial bottom trawling fishery of rockfish. Bottom trawling is pervasive along the world’s continental shelves and slopes, and known for triggering sediment resuspension due to the physical contact of heavy fishing gear to the seafloor. Three moorings were deployed near the head, northern flank and axis of Barkley Canyon (BC), equipped with turbidity sensors, current meters and sediment traps, with the objective of capturing sediment resuspension plumes attributed to fishing, and its potential transport via BC. The NEPTUNE cabled observatory provided additional environmental context with long-term observations of bottom currents and turbidity. Automatic Information System (AIS) vessel tracking data was used to determine the extent of the ‘fishing ground footprint’ near BC, and to serve as ground-truthing for the mooring data. Sea surface meteorological and oceanographic conditions (namely wind speed/direction and significant wave height/period) were obtained from the La Perouse buoy station in order to establish the shelf and upper slope natural variability of storm-induced sediment resuspension events. Our preliminary results identified the seasonal patterns of fishing activity with vessels concentrating in and around BC mostly in May and June, with clear signals of fishing-induced resuspension ... |
format |
Still Image |
author |
de Leo, Fabio Garner, Grant Puig, Pere Paradis Vilar, Sarah |
spellingShingle |
de Leo, Fabio Garner, Grant Puig, Pere Paradis Vilar, Sarah Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
author_facet |
de Leo, Fabio Garner, Grant Puig, Pere Paradis Vilar, Sarah |
author_sort |
de Leo, Fabio |
title |
Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
title_short |
Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
title_full |
Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
title_fullStr |
Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
title_full_unstemmed |
Disentangling human-induced x natural sediment resuspension events in Barkley Canyon, NE Pacific, using cabled observatory, mooring and vessel AIS data |
title_sort |
disentangling human-induced x natural sediment resuspension events in barkley canyon, ne pacific, using cabled observatory, mooring and vessel ais data |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/225483 https://doi.org/10.13140/RG.2.2.25252.09605 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-55.848,-55.848,49.550,49.550) |
geographic |
Arctic British Columbia Canada Fishing Ground Pacific |
geographic_facet |
Arctic British Columbia Canada Fishing Ground Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://doi.org/10.13140/RG.2.2.25252.09605 Sí Ocean Sciences Meeting (2020) http://hdl.handle.net/10261/225483 doi:10.13140/RG.2.2.25252.09605 |
op_rights |
open |
op_doi |
https://doi.org/10.13140/RG.2.2.25252.09605 |
_version_ |
1790596915877904384 |