Bottom trawl fishing footprints on the world's continental shelves
© 2018 National Academy of Sciences. All rights reserved. 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 o...
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| Format: | Journal Article |
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National Academy of Sciences
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/71833 |
| _version_ | 1848762585029017600 |
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| author | Amoroso, R. Pitcher, C. Rijnsdorp, A. McConnaughey, R. Parma, A. Suuronen, P. Eigaard, O. Bastardie, F. Hintzen, N. Althaus, F. Baird, S. Black, J. Buhl-Mortensen, L. Campbell, A. Catarino, R. Collie, J. Cowan, J. Durholtz, D. Engstrom, N. Fairweather, T. Fock, H. Ford, R. Gálvez, P. Gerritsen, H. Góngora, M. González, J. Hiddink, J. Hughes, K. Intelmann, S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J. Kavadas, S. Leslie, R. Lewise, S. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, Stephen Papadopoulou, N. Posen, P. Rochester, W. Russok, T. Salal, A. Semmens, J. Silvan, C. Tsoloso, A. Vanelslander, B. Wakefield, Corey Wood, B. Hilborn, R. Kaiser, M. Jennings, S. |
| author_facet | Amoroso, R. Pitcher, C. Rijnsdorp, A. McConnaughey, R. Parma, A. Suuronen, P. Eigaard, O. Bastardie, F. Hintzen, N. Althaus, F. Baird, S. Black, J. Buhl-Mortensen, L. Campbell, A. Catarino, R. Collie, J. Cowan, J. Durholtz, D. Engstrom, N. Fairweather, T. Fock, H. Ford, R. Gálvez, P. Gerritsen, H. Góngora, M. González, J. Hiddink, J. Hughes, K. Intelmann, S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J. Kavadas, S. Leslie, R. Lewise, S. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, Stephen Papadopoulou, N. Posen, P. Rochester, W. Russok, T. Salal, A. Semmens, J. Silvan, C. Tsoloso, A. Vanelslander, B. Wakefield, Corey Wood, B. Hilborn, R. Kaiser, M. Jennings, S. |
| author_sort | Amoroso, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 National Academy of Sciences. All rights reserved. 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 highresolution spatial data are unavailable. If SAR was =0.1, as in 8 of 24 regions, therewas > 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. |
| first_indexed | 2025-11-14T10:49:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-71833 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:49:54Z |
| publishDate | 2018 |
| publisher | National Academy of Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-718332018-12-13T09:33:19Z Bottom trawl fishing footprints on the world's continental shelves Amoroso, R. Pitcher, C. Rijnsdorp, A. McConnaughey, R. Parma, A. Suuronen, P. Eigaard, O. Bastardie, F. Hintzen, N. Althaus, F. Baird, S. Black, J. Buhl-Mortensen, L. Campbell, A. Catarino, R. Collie, J. Cowan, J. Durholtz, D. Engstrom, N. Fairweather, T. Fock, H. Ford, R. Gálvez, P. Gerritsen, H. Góngora, M. González, J. Hiddink, J. Hughes, K. Intelmann, S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J. Kavadas, S. Leslie, R. Lewise, S. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, Stephen Papadopoulou, N. Posen, P. Rochester, W. Russok, T. Salal, A. Semmens, J. Silvan, C. Tsoloso, A. Vanelslander, B. Wakefield, Corey Wood, B. Hilborn, R. Kaiser, M. Jennings, S. © 2018 National Academy of Sciences. All rights reserved. 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 highresolution spatial data are unavailable. If SAR was =0.1, as in 8 of 24 regions, therewas > 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. 2018 Journal Article http://hdl.handle.net/20.500.11937/71833 10.1073/pnas.1802379115 National Academy of Sciences restricted |
| spellingShingle | Amoroso, R. Pitcher, C. Rijnsdorp, A. McConnaughey, R. Parma, A. Suuronen, P. Eigaard, O. Bastardie, F. Hintzen, N. Althaus, F. Baird, S. Black, J. Buhl-Mortensen, L. Campbell, A. Catarino, R. Collie, J. Cowan, J. Durholtz, D. Engstrom, N. Fairweather, T. Fock, H. Ford, R. Gálvez, P. Gerritsen, H. Góngora, M. González, J. Hiddink, J. Hughes, K. Intelmann, S. Jenkins, C. Jonsson, P. Kainge, P. Kangas, M. Kathena, J. Kavadas, S. Leslie, R. Lewise, S. Lundy, M. Makin, D. Martin, J. Mazor, T. Gonzalez-Mirelis, G. Newman, Stephen Papadopoulou, N. Posen, P. Rochester, W. Russok, T. Salal, A. Semmens, J. Silvan, C. Tsoloso, A. Vanelslander, B. Wakefield, Corey Wood, B. Hilborn, R. Kaiser, M. Jennings, S. Bottom trawl fishing footprints on the world's continental shelves |
| title | 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_short | Bottom trawl fishing footprints on the world's continental shelves |
| title_sort | bottom trawl fishing footprints on the world's continental shelves |
| url | http://hdl.handle.net/20.500.11937/71833 |