Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring
Monitoring, understanding, and communicating the impact of offshore oil and gas exploration and production (E&P) activities on marine mammal (MM) biodiversity can be challenging. Here, we share methods, results, and experiences accumulated during seven years of monitoring MM and underwater sound...
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Format: | Other Non-Article Part of Journal/Newspaper |
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Society of Petroleum Engineers
2020
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Online Access: | https://orbit.dtu.dk/en/publications/4916e184-d0d6-40a5-b9de-22e15ae9a11c https://doi.org/10.2118/199479-MS |
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ftdtupubl:oai:pure.atira.dk:publications/4916e184-d0d6-40a5-b9de-22e15ae9a11c 2023-05-15T16:33:29+02:00 Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring Delefosse, Matthieu Jacobsen, Magnus W. Balle, Jeppe D. Hansen, Brian Klitgaard Middelboe, Anne Lise Nielsen, Einar E. Teilmann, Jonas 2020 https://orbit.dtu.dk/en/publications/4916e184-d0d6-40a5-b9de-22e15ae9a11c https://doi.org/10.2118/199479-MS eng eng Society of Petroleum Engineers info:eu-repo/semantics/closedAccess Delefosse , M , Jacobsen , M W , Balle , J D , Hansen , B K , Middelboe , A L , Nielsen , E E & Teilmann , J 2020 , Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring . in Proceedings of the 2020 SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability . , SPE-199479-MS , Society of Petroleum Engineers , 2020 SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability , Virtual event , 27/07/2020 . https://doi.org/10.2118/199479-MS /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water contributionToPeriodical 2020 ftdtupubl https://doi.org/10.2118/199479-MS 2022-10-26T22:55:51Z Monitoring, understanding, and communicating the impact of offshore oil and gas exploration and production (E&P) activities on marine mammal (MM) biodiversity can be challenging. Here, we share methods, results, and experiences accumulated during seven years of monitoring MM and underwater sound in a mature E&P activity area in the North-East Atlantic. We collected data on the distribution and behaviour of MM, their prey and changes associated with impulsive (e.g., seismic) and continuous (e.g., platform) sound generated by E&P operations. A program was created as an incentive for offshore staff to report systematically incidental MM sightings. Underwater acoustic recorders were placed around producing facilities and across a 3D seismic survey area before, during and after acquisition. A 2 nd Generation Environmental Sample Processor (ESP) was deployed to collect and analyse environmental DNA (eDNA) from seawater to identify MM species and their potential prey. Monitoring data were shared with relevant stakeholders through publications in scientific journals, presentations at conferences and meetings, or through social media. Our data provided evidence of MM activity in the E&P activity area year-round. A total of eight species were sighted from platforms and vessels; harbour porpoise being the most common MM. Harbour porpoises were recorded as being within 800m of the platform three times more often than at stations further away. Near installations, acoustic data showed porpoises actively searched for prey whilst eDNA confirmed the presence of prey species - validating a strong reef-effect. Decrease in porpoise echolocation to 8-12 km from an active seismic vessel, is suggestive of a temporary displacement of animals in the corresponding area. There was no large scale or long-term displacement as harbour porpoises were detected again in the area few hours after airgun operations ended. The results indicate that despite elevated sound level in the E&P area, porpoise distribution appears to be ... Other Non-Article Part of Journal/Newspaper Harbour porpoise North East Atlantic Technical University of Denmark: DTU Orbit Day 1 Mon, July 27, 2020 |
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Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
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/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water Delefosse, Matthieu Jacobsen, Magnus W. Balle, Jeppe D. Hansen, Brian Klitgaard Middelboe, Anne Lise Nielsen, Einar E. Teilmann, Jonas Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
description |
Monitoring, understanding, and communicating the impact of offshore oil and gas exploration and production (E&P) activities on marine mammal (MM) biodiversity can be challenging. Here, we share methods, results, and experiences accumulated during seven years of monitoring MM and underwater sound in a mature E&P activity area in the North-East Atlantic. We collected data on the distribution and behaviour of MM, their prey and changes associated with impulsive (e.g., seismic) and continuous (e.g., platform) sound generated by E&P operations. A program was created as an incentive for offshore staff to report systematically incidental MM sightings. Underwater acoustic recorders were placed around producing facilities and across a 3D seismic survey area before, during and after acquisition. A 2 nd Generation Environmental Sample Processor (ESP) was deployed to collect and analyse environmental DNA (eDNA) from seawater to identify MM species and their potential prey. Monitoring data were shared with relevant stakeholders through publications in scientific journals, presentations at conferences and meetings, or through social media. Our data provided evidence of MM activity in the E&P activity area year-round. A total of eight species were sighted from platforms and vessels; harbour porpoise being the most common MM. Harbour porpoises were recorded as being within 800m of the platform three times more often than at stations further away. Near installations, acoustic data showed porpoises actively searched for prey whilst eDNA confirmed the presence of prey species - validating a strong reef-effect. Decrease in porpoise echolocation to 8-12 km from an active seismic vessel, is suggestive of a temporary displacement of animals in the corresponding area. There was no large scale or long-term displacement as harbour porpoises were detected again in the area few hours after airgun operations ended. The results indicate that despite elevated sound level in the E&P area, porpoise distribution appears to be ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Delefosse, Matthieu Jacobsen, Magnus W. Balle, Jeppe D. Hansen, Brian Klitgaard Middelboe, Anne Lise Nielsen, Einar E. Teilmann, Jonas |
author_facet |
Delefosse, Matthieu Jacobsen, Magnus W. Balle, Jeppe D. Hansen, Brian Klitgaard Middelboe, Anne Lise Nielsen, Einar E. Teilmann, Jonas |
author_sort |
Delefosse, Matthieu |
title |
Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
title_short |
Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
title_full |
Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
title_fullStr |
Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
title_full_unstemmed |
Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring |
title_sort |
marine mammal biodiversity around oil and gas platforms - challenges and successes of long-term monitoring |
publisher |
Society of Petroleum Engineers |
publishDate |
2020 |
url |
https://orbit.dtu.dk/en/publications/4916e184-d0d6-40a5-b9de-22e15ae9a11c https://doi.org/10.2118/199479-MS |
genre |
Harbour porpoise North East Atlantic |
genre_facet |
Harbour porpoise North East Atlantic |
op_source |
Delefosse , M , Jacobsen , M W , Balle , J D , Hansen , B K , Middelboe , A L , Nielsen , E E & Teilmann , J 2020 , Marine mammal biodiversity around oil and gas platforms - Challenges and successes of long-term monitoring . in Proceedings of the 2020 SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability . , SPE-199479-MS , Society of Petroleum Engineers , 2020 SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability , Virtual event , 27/07/2020 . https://doi.org/10.2118/199479-MS |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.2118/199479-MS |
container_title |
Day 1 Mon, July 27, 2020 |
_version_ |
1766023168973078528 |