FN Archimer Export Format
PT Rapport
TI Benthic impact of fisheries in European waters: the distribution and intensity of bottom trawling
BT 
AF Eigaard, Ole R.
   Bastardie, Francois
   Hintzen, Niels
   Buhl-Mortensen, Lene
   Buhl-Mortensen, Pål
   Catarino, Rui
   Dinesen, Grete E.
   Fock, Heino
   Geitner, Kerstin
   Gerritsen, Hans
   Gonzalez, Manuel M.
   Jonsson, Patrik
   Kavadas, Stefanos
   LAFFARGUE, Pascal
   Lundy, Mathieu
   Mirelis, Genoveva G.
   Nielsen, Rasmus
   Papadopoulou, Nadia
   Posen, Paulette
   Pulcinella, Jacopo
   Russo, Tomasso
   Sala, Antonello
   Silva, Cristina
   Smith, Chris
   Vanelslander, Bart
   Zengin, Mustafa
   Rijnsdorp, Adriaan D.
AS 1:1;2:1;3:2;4:3;5:3;6:4;7:1;8:5;9:1;10:6;11:7;12:8;13:9;14:10;15:11;16:3;17:1;18:;19:13;20:14;21:14;22:14;23:;24:15;25:16;26:17;27:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:PDG-RBE-EMH;15:;16:;17:;18:;19:;20:;21:;22:;23:;24:;25:;26:;27:;
C1 National Institute of Aquatic Resources, Technical University of Denmark, Charlottenlund Castle, 2920 Charlottenlund, Denmark
   IMARES, P.O. Box 68, 1970 AB IJmuiden, the Netherlands
   Institute of Marine Research, Nordnesgaten 50, 5817 Bergen, Norway.
   Marine Scotland Science, Marine Laboratory, PO Box 101, 375 Victoria Road, Aberdeen, Scotland
   vTI, Hamburg, germany
   Marine Institute, Galway, Ireland
   IEO, Vigo, Spain
   Department of Aquatic Resources, Swedish University of Agricultural Sciences, Turistgatan 5, Lysekil 45330, Sweden
   Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46,7 km Athens Sounio Ave., 19013 Anavyssos, Attiki, Greece
   IFREMER, Nantes, France.
   AFBI, Belfast, Northern Ireland
   AU-Bioscience, Aarhus, Denmark
   CEFAS, Lowestoft, UK
   CNR, Ancona, Italy
   Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, P.O. Box 2214, 71003 Heraklion, Crete, Greece
   Institute for Agricultural and Fisheries Research, Animal Sciences Unit - Fisheries and Aquatic Production, Ankerstraat 1, 8400 Oostende, Belgium
   Central Fisheries Researche Institute, Kasüstü, Trabzon, 61100, Turkey
C2 UNIV TECH DENMARK (DTU AQUA), DENMARK
   IMARES, THE NETHERLANDS
   IMR (BERGEN), NORWAY
   MARINE SCOTLAND SCI, UK
   VTI, GERMANY
   MARINE INST, IRELAND
   IEO, SPAIN
   SLU, SWEDEN
   HELLEN CTR MARINE RES, GREECE
   IFREMER, FRANCE
   AFBI, NORTHERN IRELAND
   AU-BIOSCIENCE, DENMARK
   CEFAS, UK
   IAMC CNR, ITALY
   HELLEN CTR MARINE RES, GREECE
   ILVO, BELGIUM
   CFRI, TURKEY
SI NANTES
SE PDG-RBE-EMH
UR https://archimer.ifremer.fr/doc/00310/42138/54476.pdf
LA English
DT Report
AB Mapping and monitoring of pressure from fishery on the marine benthic environment is necessary to support an ecosystem approach to fisheries management (EAFM). In many cases this need is not reflected in official fisheries statistics and logbooks, where focus typically is on catch rather than effort. Consequently, most logbook information is not well suited for quantitative estimation of seafloor impact (swept area and impact severity) of the different gears and trips. We developed a method to overcome this information deficiency of official statistics and produced European wide high-resolution fishing intensity maps (total yearly swept area within grid cells of 1*1 minutes longitude and latitude) for 2010, 2011 and 2012. The annual distribution and intensity of bottom trawling on the European continental shelf was analyzed for different management areas and gear groups, distinguishing between surface and sub-surface effects. Fishing pressure indicators were calculated and compared for each management area; i) proportion of area untrawled, ii) proportion of area with an annual swept area intensity ≥ 1, and iii) proportion of area where 90% of the effort is concentrated). The management area with the largest proportion of surface area being trawled ≥ 1 time a year was the Adriatic Sea (64%) and the management area with the lowest proportion of surface area being trawled ≥ 1 time a year was the Northwestern Shelf (15%). Also the Tyrrhenian Sea (45%), the Channel (41%) and the North Sea (36%) have a substantial part the seabed trawled at intensities above 1, indicating a high level of fishing pressure on the benthic habitats. The results of the analysis also showed that in all European seas, between 33% and 72% of the sea bed down to 200 m was not trawled during the study period. When considering all three fishing pressure indicators jointly (proportion of area untrawled, proportion with an annual intensity ≥ 1, and with 90% of the effort) four management areas draw attention; the North Sea, the Channel, the Tyrrhenian Sea and Adriatic Sea. These four areas all score relatively high on all three pressure indicators, and also have a substantial part (> 50%) of the total area impacted at the sub-surface level. Within the soft sediment habitats that dominate the continental shelf areas of Europe, mud habitats appear to be trawled most intensively while at the same time they likely have a higher sensitivity to bottom trawling as compared to the sandy and coarser sediments. Consequently, current fishing practices in parts of these four management areas could potentially compromise seafloor integrity. 
PY 2015
ID 42138
ER

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