Bottom trawl fishing footprints on the world’s continental shelves
Bottom trawlers land around 19 million tons of fish and invertebrates annually, almost one-quarter of wild marine landings. The extent of bottom trawling footprint (seabed area trawled at least once in a specified region and time period) is often contested but poorly described. We quantify footprint...
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Online Access: | https://doi.org/10.1073/pnas.1802379115 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Bottom-trawl-fishing-footprints-on-the/991005542675807891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135884550007891/13136935050007891 |
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ftmurdochunivall:oai:alma.61MUN_INST:11135884560007891 2024-09-09T19:33:50+00:00 Bottom trawl fishing footprints on the world’s continental shelves Amoroso, R.O. Pitcher, C.R. Rijnsdorp, A.D. McConnaughey, R.A. Parma, A.M. Suuronen, P. Eigaard, O.R. Bastardie, F. Hintzen, N.T. Althaus, F. Baird, S.J. Black, J. Buhl-Mortensen, L. Campbell, A.B. Catarino, R. Collie, J. Cowan, J.H. Durholtz, D. Engstrom, N. Fairweather, T.P. Fock, H.O. Ford, R. Gálvez, P.A. Gerritsen, H. Góngora, M.E. González, J.A. Hiddink, J.G. Hughes, K.M. Intelmann, S.S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J.N. Kavadas, S. Leslie, R.W. Lewis, S.G. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, S.J. Papadopoulou, N. Posen, P.E. Rochester, W. Russo, T. Sala, A. Semmens, J.M. Silva, C. Tsolos, A. Vanelslander, B. Wakefield, C.B. Wood, B.A. Hilborn, R. Kaiser, M.J. Jennings, S. 2018 pdf https://doi.org/10.1073/pnas.1802379115 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Bottom-trawl-fishing-footprints-on-the/991005542675807891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135884550007891/13136935050007891 eng eng PNAS ispartof: Proceedings of the National Academy of Sciences doi:10.1073/pnas.1802379115 WOS:000448040500030 0027-8424 https://doi.org/10.1073/pnas.1802379115 991005542675807891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Bottom-trawl-fishing-footprints-on-the/991005542675807891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135884550007891/13136935050007891 alma:61MUN_INST/bibs/991005542675807891 © 2018 the Author(s) Open text Article 2018 ftmurdochunivall https://doi.org/10.1073/pnas.1802379115 2024-08-15T00:52:48Z Bottom trawlers land around 19 million tons of fish and invertebrates annually, almost one-quarter of wild marine landings. The extent of bottom trawling footprint (seabed area trawled at least once in a specified region and time period) is often contested but poorly described. We quantify footprints using high-resolution satellite vessel monitoring system (VMS) and logbook data on 24 continental shelves and slopes to 1,000-m depth over at least 2 years. Trawling footprint varied markedly among regions: from <10% of seabed area in Australian and New Zealand waters, the Aleutian Islands, East Bering Sea, South Chile, and Gulf of Alaska to >50% in some European seas. Overall, 14% of the 7.8 million-km2 study area was trawled, and 86% was not trawled. Trawling activity was aggregated; the most intensively trawled areas accounting for 90% of activity comprised 77% of footprint on average. Regional swept area ratio (SAR; ratio of total swept area trawled annually to total area of region, a metric of trawling intensity) and footprint area were related, providing an approach to estimate regional trawling footprints when high-resolution spatial data are unavailable. If SAR was ≤0.1, as in 8 of 24 regions, there was >95% probability that >90% of seabed was not trawled. If SAR was 7.9, equal to the highest SAR recorded, there was >95% probability that >70% of seabed was trawled. Footprints were smaller and SAR was ≤0.25 in regions where fishing rates consistently met international sustainability benchmarks for fish stocks, implying collateral environmental benefits from sustainable fishing. Article in Journal/Newspaper Bering Sea Alaska Aleutian Islands Murdoch University Research Portal Bering Sea Gulf of Alaska New Zealand Proceedings of the National Academy of Sciences 115 43 |
institution |
Open Polar |
collection |
Murdoch University Research Portal |
op_collection_id |
ftmurdochunivall |
language |
English |
description |
Bottom trawlers land around 19 million tons of fish and invertebrates annually, almost one-quarter of wild marine landings. The extent of bottom trawling footprint (seabed area trawled at least once in a specified region and time period) is often contested but poorly described. We quantify footprints using high-resolution satellite vessel monitoring system (VMS) and logbook data on 24 continental shelves and slopes to 1,000-m depth over at least 2 years. Trawling footprint varied markedly among regions: from <10% of seabed area in Australian and New Zealand waters, the Aleutian Islands, East Bering Sea, South Chile, and Gulf of Alaska to >50% in some European seas. Overall, 14% of the 7.8 million-km2 study area was trawled, and 86% was not trawled. Trawling activity was aggregated; the most intensively trawled areas accounting for 90% of activity comprised 77% of footprint on average. Regional swept area ratio (SAR; ratio of total swept area trawled annually to total area of region, a metric of trawling intensity) and footprint area were related, providing an approach to estimate regional trawling footprints when high-resolution spatial data are unavailable. If SAR was ≤0.1, as in 8 of 24 regions, there was >95% probability that >90% of seabed was not trawled. If SAR was 7.9, equal to the highest SAR recorded, there was >95% probability that >70% of seabed was trawled. Footprints were smaller and SAR was ≤0.25 in regions where fishing rates consistently met international sustainability benchmarks for fish stocks, implying collateral environmental benefits from sustainable fishing. |
format |
Article in Journal/Newspaper |
author |
Amoroso, R.O. Pitcher, C.R. Rijnsdorp, A.D. McConnaughey, R.A. Parma, A.M. Suuronen, P. Eigaard, O.R. Bastardie, F. Hintzen, N.T. Althaus, F. Baird, S.J. Black, J. Buhl-Mortensen, L. Campbell, A.B. Catarino, R. Collie, J. Cowan, J.H. Durholtz, D. Engstrom, N. Fairweather, T.P. Fock, H.O. Ford, R. Gálvez, P.A. Gerritsen, H. Góngora, M.E. González, J.A. Hiddink, J.G. Hughes, K.M. Intelmann, S.S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J.N. Kavadas, S. Leslie, R.W. Lewis, S.G. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, S.J. Papadopoulou, N. Posen, P.E. Rochester, W. Russo, T. Sala, A. Semmens, J.M. Silva, C. Tsolos, A. Vanelslander, B. Wakefield, C.B. Wood, B.A. Hilborn, R. Kaiser, M.J. Jennings, S. |
spellingShingle |
Amoroso, R.O. Pitcher, C.R. Rijnsdorp, A.D. McConnaughey, R.A. Parma, A.M. Suuronen, P. Eigaard, O.R. Bastardie, F. Hintzen, N.T. Althaus, F. Baird, S.J. Black, J. Buhl-Mortensen, L. Campbell, A.B. Catarino, R. Collie, J. Cowan, J.H. Durholtz, D. Engstrom, N. Fairweather, T.P. Fock, H.O. Ford, R. Gálvez, P.A. Gerritsen, H. Góngora, M.E. González, J.A. Hiddink, J.G. Hughes, K.M. Intelmann, S.S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J.N. Kavadas, S. Leslie, R.W. Lewis, S.G. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, S.J. Papadopoulou, N. Posen, P.E. Rochester, W. Russo, T. Sala, A. Semmens, J.M. Silva, C. Tsolos, A. Vanelslander, B. Wakefield, C.B. Wood, B.A. Hilborn, R. Kaiser, M.J. Jennings, S. Bottom trawl fishing footprints on the world’s continental shelves |
author_facet |
Amoroso, R.O. Pitcher, C.R. Rijnsdorp, A.D. McConnaughey, R.A. Parma, A.M. Suuronen, P. Eigaard, O.R. Bastardie, F. Hintzen, N.T. Althaus, F. Baird, S.J. Black, J. Buhl-Mortensen, L. Campbell, A.B. Catarino, R. Collie, J. Cowan, J.H. Durholtz, D. Engstrom, N. Fairweather, T.P. Fock, H.O. Ford, R. Gálvez, P.A. Gerritsen, H. Góngora, M.E. González, J.A. Hiddink, J.G. Hughes, K.M. Intelmann, S.S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J.N. Kavadas, S. Leslie, R.W. Lewis, S.G. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, S.J. Papadopoulou, N. Posen, P.E. Rochester, W. Russo, T. Sala, A. Semmens, J.M. Silva, C. Tsolos, A. Vanelslander, B. Wakefield, C.B. Wood, B.A. Hilborn, R. Kaiser, M.J. Jennings, S. |
author_sort |
Amoroso, R.O. |
title |
Bottom trawl fishing footprints on the world’s continental shelves |
title_short |
Bottom trawl fishing footprints on the world’s continental shelves |
title_full |
Bottom trawl fishing footprints on the world’s continental shelves |
title_fullStr |
Bottom trawl fishing footprints on the world’s continental shelves |
title_full_unstemmed |
Bottom trawl fishing footprints on the world’s continental shelves |
title_sort |
bottom trawl fishing footprints on the world’s continental shelves |
publisher |
PNAS |
publishDate |
2018 |
url |
https://doi.org/10.1073/pnas.1802379115 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Bottom-trawl-fishing-footprints-on-the/991005542675807891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135884550007891/13136935050007891 |
geographic |
Bering Sea Gulf of Alaska New Zealand |
geographic_facet |
Bering Sea Gulf of Alaska New Zealand |
genre |
Bering Sea Alaska Aleutian Islands |
genre_facet |
Bering Sea Alaska Aleutian Islands |
op_relation |
ispartof: Proceedings of the National Academy of Sciences doi:10.1073/pnas.1802379115 WOS:000448040500030 0027-8424 https://doi.org/10.1073/pnas.1802379115 991005542675807891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Bottom-trawl-fishing-footprints-on-the/991005542675807891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135884550007891/13136935050007891 alma:61MUN_INST/bibs/991005542675807891 |
op_rights |
© 2018 the Author(s) Open |
op_doi |
https://doi.org/10.1073/pnas.1802379115 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
115 |
container_issue |
43 |
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1809903373018726400 |