The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity
Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach to fisheries management. The extent and intensity of bottom trawling on the European continental shelf (0-1000 m) was analysed from logbook statistics and vessel monitoring system data for 2010...
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Format: | Article in Journal/Newspaper |
Language: | unknown |
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Oxford University Press (OUP)
2016
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Online Access: | http://hdl.handle.net/10379/11336 https://doi.org/10.13025/26982 https://doi.org/10.1093/icesjms/fsw194 |
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ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/11336 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
benthic impact bottom trawl fishing pressure indicators mediterranean sea northeast atlantic seabed habitat seabed integrity trawling footprint trawling intensity mobile fishing gear southern north-sea marine ecosystems benthic communities floor integrity fisheries impact disturbance management framework |
spellingShingle |
benthic impact bottom trawl fishing pressure indicators mediterranean sea northeast atlantic seabed habitat seabed integrity trawling footprint trawling intensity mobile fishing gear southern north-sea marine ecosystems benthic communities floor integrity fisheries impact disturbance management framework Eigaard, Ole R. Bastardie, Francois Hintzen, Niels T. Buhl-Mortensen, Lene Buhl-Mortensen, Pål Catarino, Rui Dinesen, Grete E. Egekvist, Josefine Fock, Heino O. Geitner, Kerstin Gerritsen, Hans D. González, Manuel Marín Jonsson, Patrik Kavadas, Stefanos Laffargue, Pascal Lundy, Mathieu Gonzalez-Mirelis, Genoveva Nielsen, J. Rasmus Papadopoulou, Nadia Posen, Paulette E. Pulcinella, Jacopo Russo, Tommaso Sala, Antonello Silva, Cristina Smith, Christopher J. Vanelslander, Bart Rijnsdorp, Adriaan D. The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
topic_facet |
benthic impact bottom trawl fishing pressure indicators mediterranean sea northeast atlantic seabed habitat seabed integrity trawling footprint trawling intensity mobile fishing gear southern north-sea marine ecosystems benthic communities floor integrity fisheries impact disturbance management framework |
description |
Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach to fisheries management. The extent and intensity of bottom trawling on the European continental shelf (0-1000 m) was analysed from logbook statistics and vessel monitoring system data for 2010-2012 at a grid cell resolution of 1 x 1 min longitude and latitude. Trawling intensity profiles with seabed impact at the surface and subsurface level are presented for 14 management areas in the North-east Atlantic, Baltic Sea and Mediterranean Sea. The footprint of the management areas ranged between 53-99% and 6-94% for the depth zone from 0 to 200 m (Shallow) and from 201 to 1000 m (Deep), respectively. The footprint was estimated as the total area of all grid cells that were trawled fully or partially. Excluding the untrawled proportions reduced the footprint estimates to 28-85% and 2-77%. Largest footprints per unit landings were observed off Portugal and in the Mediterranean Sea. Mean trawling intensity ranged between 0.5 and 8.5 times per year, but was less in the Deep zone with a maximum intensity of 6.4. Highest intensities were recorded in the Skagerrak-Kattegat, Iberian Portuguese area, Tyrrhenian Sea and Adriatic Sea. Bottom trawling was highly aggregated. For the Shallow zone the seabed area where 90% of the effort occurred comprised between 17% and 63% (median 36%) of the management area. Footprints were high over a broad range of soft sediment habitats. Using the longevity distribution of the untrawled infaunal community, the seabed integrity was estimated as the proportion of the biomass of benthic taxa where the trawling interval at the subsurface level exceeds their life span. Seabed integrity was low (< 0.1) in large parts of the European continental shelfs, although smaller pockets of seabed with higher integrity values occur. The methods developed here integrate official fishing effort statistics and industry-based gear information to provide high-resolution pressure maps and indicators, ... |
format |
Article in Journal/Newspaper |
author |
Eigaard, Ole R. Bastardie, Francois Hintzen, Niels T. Buhl-Mortensen, Lene Buhl-Mortensen, Pål Catarino, Rui Dinesen, Grete E. Egekvist, Josefine Fock, Heino O. Geitner, Kerstin Gerritsen, Hans D. González, Manuel Marín Jonsson, Patrik Kavadas, Stefanos Laffargue, Pascal Lundy, Mathieu Gonzalez-Mirelis, Genoveva Nielsen, J. Rasmus Papadopoulou, Nadia Posen, Paulette E. Pulcinella, Jacopo Russo, Tommaso Sala, Antonello Silva, Cristina Smith, Christopher J. Vanelslander, Bart Rijnsdorp, Adriaan D. |
author_facet |
Eigaard, Ole R. Bastardie, Francois Hintzen, Niels T. Buhl-Mortensen, Lene Buhl-Mortensen, Pål Catarino, Rui Dinesen, Grete E. Egekvist, Josefine Fock, Heino O. Geitner, Kerstin Gerritsen, Hans D. González, Manuel Marín Jonsson, Patrik Kavadas, Stefanos Laffargue, Pascal Lundy, Mathieu Gonzalez-Mirelis, Genoveva Nielsen, J. Rasmus Papadopoulou, Nadia Posen, Paulette E. Pulcinella, Jacopo Russo, Tommaso Sala, Antonello Silva, Cristina Smith, Christopher J. Vanelslander, Bart Rijnsdorp, Adriaan D. |
author_sort |
Eigaard, Ole R. |
title |
The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
title_short |
The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
title_full |
The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
title_fullStr |
The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
title_full_unstemmed |
The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
title_sort |
footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://hdl.handle.net/10379/11336 https://doi.org/10.13025/26982 https://doi.org/10.1093/icesjms/fsw194 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat |
geographic_facet |
Kattegat |
genre |
North East Atlantic Northeast Atlantic |
genre_facet |
North East Atlantic Northeast Atlantic |
op_relation |
ICES Journal of Marine Science: Journal du Conseil Eigaard, Ole R. Bastardie, Francois; Hintzen, Niels T.; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Catarino, Rui; Dinesen, Grete E.; Egekvist, Josefine; Fock, Heino O.; Geitner, Kerstin; Gerritsen, Hans D.; González, Manuel Marín; Jonsson, Patrik; Kavadas, Stefanos; Laffargue, Pascal; Lundy, Mathieu; Gonzalez-Mirelis, Genoveva; Nielsen, J. Rasmus; Papadopoulou, Nadia; Posen, Paulette E.; Pulcinella, Jacopo; Russo, Tommaso; Sala, Antonello; Silva, Cristina; Smith, Christopher J.; Vanelslander, Bart; Rijnsdorp, Adriaan D. (2016). The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity. ICES Journal of Marine Science: Journal du Conseil 74 (3), 847-865 1054-3139,1095-9289 http://hdl.handle.net/10379/11336 https://doi.org/10.13025/26982 doi:10.1093/icesjms/fsw194 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.13025/2698210.1093/icesjms/fsw194 |
_version_ |
1811642482308415488 |
spelling |
ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/11336 2024-09-30T14:39:54+00:00 The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity Eigaard, Ole R. Bastardie, Francois Hintzen, Niels T. Buhl-Mortensen, Lene Buhl-Mortensen, Pål Catarino, Rui Dinesen, Grete E. Egekvist, Josefine Fock, Heino O. Geitner, Kerstin Gerritsen, Hans D. González, Manuel Marín Jonsson, Patrik Kavadas, Stefanos Laffargue, Pascal Lundy, Mathieu Gonzalez-Mirelis, Genoveva Nielsen, J. Rasmus Papadopoulou, Nadia Posen, Paulette E. Pulcinella, Jacopo Russo, Tommaso Sala, Antonello Silva, Cristina Smith, Christopher J. Vanelslander, Bart Rijnsdorp, Adriaan D. 2016-12-22 http://hdl.handle.net/10379/11336 https://doi.org/10.13025/26982 https://doi.org/10.1093/icesjms/fsw194 unknown Oxford University Press (OUP) ICES Journal of Marine Science: Journal du Conseil Eigaard, Ole R. Bastardie, Francois; Hintzen, Niels T.; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Catarino, Rui; Dinesen, Grete E.; Egekvist, Josefine; Fock, Heino O.; Geitner, Kerstin; Gerritsen, Hans D.; González, Manuel Marín; Jonsson, Patrik; Kavadas, Stefanos; Laffargue, Pascal; Lundy, Mathieu; Gonzalez-Mirelis, Genoveva; Nielsen, J. Rasmus; Papadopoulou, Nadia; Posen, Paulette E.; Pulcinella, Jacopo; Russo, Tommaso; Sala, Antonello; Silva, Cristina; Smith, Christopher J.; Vanelslander, Bart; Rijnsdorp, Adriaan D. (2016). The footprint of bottom trawling in european waters: distribution, intensity, and seabed integrity. ICES Journal of Marine Science: Journal du Conseil 74 (3), 847-865 1054-3139,1095-9289 http://hdl.handle.net/10379/11336 https://doi.org/10.13025/26982 doi:10.1093/icesjms/fsw194 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ benthic impact bottom trawl fishing pressure indicators mediterranean sea northeast atlantic seabed habitat seabed integrity trawling footprint trawling intensity mobile fishing gear southern north-sea marine ecosystems benthic communities floor integrity fisheries impact disturbance management framework Article 2016 ftnuigalway https://doi.org/10.13025/2698210.1093/icesjms/fsw194 2024-09-17T14:44:29Z Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach to fisheries management. The extent and intensity of bottom trawling on the European continental shelf (0-1000 m) was analysed from logbook statistics and vessel monitoring system data for 2010-2012 at a grid cell resolution of 1 x 1 min longitude and latitude. Trawling intensity profiles with seabed impact at the surface and subsurface level are presented for 14 management areas in the North-east Atlantic, Baltic Sea and Mediterranean Sea. The footprint of the management areas ranged between 53-99% and 6-94% for the depth zone from 0 to 200 m (Shallow) and from 201 to 1000 m (Deep), respectively. The footprint was estimated as the total area of all grid cells that were trawled fully or partially. Excluding the untrawled proportions reduced the footprint estimates to 28-85% and 2-77%. Largest footprints per unit landings were observed off Portugal and in the Mediterranean Sea. Mean trawling intensity ranged between 0.5 and 8.5 times per year, but was less in the Deep zone with a maximum intensity of 6.4. Highest intensities were recorded in the Skagerrak-Kattegat, Iberian Portuguese area, Tyrrhenian Sea and Adriatic Sea. Bottom trawling was highly aggregated. For the Shallow zone the seabed area where 90% of the effort occurred comprised between 17% and 63% (median 36%) of the management area. Footprints were high over a broad range of soft sediment habitats. Using the longevity distribution of the untrawled infaunal community, the seabed integrity was estimated as the proportion of the biomass of benthic taxa where the trawling interval at the subsurface level exceeds their life span. Seabed integrity was low (< 0.1) in large parts of the European continental shelfs, although smaller pockets of seabed with higher integrity values occur. The methods developed here integrate official fishing effort statistics and industry-based gear information to provide high-resolution pressure maps and indicators, ... Article in Journal/Newspaper North East Atlantic Northeast Atlantic National University of Ireland (NUI), Galway: ARAN Kattegat ENVELOPE(9.692,9.692,63.563,63.563) |