CESIMAR - CENPAT   25625
CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Unidad Ejecutora - UE
artículos
Título:
Bottom trawl fishing footprints on the world's continental shelves
Autor/es:
PITCHER, C. ROLAND; PARMA, ANA M.; BASTARDIE, FRANCOIS; BAIRD, SUSAN JANE; CAMPBELL, ALEXANDER B.; COWAN, JAMES H.; FAIRWEATHER, TRACEY P.; GÁLVEZ, PATRICIO A.; GONZÁLEZ, JESSICA A.; INTELMANN, STEVEN S.; KAINGE, PAULUS; KAVADAS, STEFANOS; LUNDY, MATHIEU; MAZOR, TESSA; PAPADOPOULOU, NADIA; RUSSOK, TOMMASO; SILVAN, CRISTINA; WAKEFIELD, COREY B.; KAISER, MICHEL J.; AMOROSO, RICARDO O.; MCCONNAUGHEY, ROBERT A.; EIGAARD, OLE R.; ALTHAUS, FRANZISKA; BUHL-MORTENSEN, LENE; COLLIE, JEREMY; ENGSTROM, NADIA; FORD, RICHARD; GÓNGORA, MARÍA EVA; HUGHES, KATHRYN M.; JONSSON, PATRIK; KATHENA, JOHANNES N.; LEWISE, STEVE G.; MARTIN, JULIE; NEWMAN, STEPHEN J.; ROCHESTER, WAYNE; SEMMENS, JAYSON M.; VANELSLANDER, BART; HILBORN, RAY; RIJNSDORP, ADRIAAN D.; SUURONEN, PETRI; HINTZEN, NIELS T.; BLACK, JENNY; CATARINO, RUI; DURHOLTZ, DEON; FOCK, HEINO O.; GERRITSEN, HANS; HIDDINK, JAN G.; JENKINS, CHRIS; KANGAS, MERVI; LESLIE, ROB W.; MAKIN, DAVID; GONZALEZ-MIRELIS, GENOVEVA; POSEN, PAULETTE E.; SALAL, ANTONELLO; TSOLOSO, ANGELO; WOO
Revista:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Editorial:
NATL ACAD SCIENCES
Referencias:
Lugar: Washington DC, USA; Año: 2018 vol. 115 p. 1 - 8
ISSN:
0027-8424
Resumen:
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.