Bottom trawl fishing footprints on the world’s continental shelves

Amoroso, Ricardo O.; Pitcher, C. Roland; Rijnsdorp, Adriaan D.; McConnaughey, Robert A.; Parma, Ana M.; Suuronen, Petri; Eigaard, Ole R.; Bastardie, Francois; Hintzen, Niels T.; Althaus, Franziska; Baird, Susan Jane; Black, Jenny; Buhl-Mortensen, Lene; Campbell, Alexander B.; Catarino, Rui; Collie, Jeremy; Cowan, James H.; Durholtz, Deon; Engstrom, Nadia; Fairweather, Tracey P.; Fock, Heino O.; Ford, Richard; Gálvez, Patricio A.; Gerritsen, Hans; Góngora, María Eva; González, Jessica A.; Hiddink, Jan G.; Hughes, Kathryn M.; Intelmann, Steven S.; Jenkins, Chris; Jonsson, Patrik; Kainge, Paulus; Kangas, Mervi; Kathena, Johannes N.; Kavadas, Stefanos; Leslie, Rob W.; Lewis, Steve G.; Lundy, Mathieu; Makin, David; Martin, Julie; Mazor, Tessa; Gonzalez-Mirelis, Genoveva; Newman, Stephen J.; Papadopoulou, Nadia; Posen, Paulette E.; Rochester, Wayne; Russo, Tommaso; Sala, Antonello; Semmens, Jayson M.; Silva, Cristina; Tsolos, Angelo; Vanelslander, Bart; Wakefield, Corey B.; Wood, Brent A.; Hilborn, Ray; Kaiser, Michel J.; Jennings, Simon

doi:10.1073/pnas.1802379115

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Bottom trawl fishing footprints on the world’s continental shelves

2018
By Amoroso, Ricardo O. ; Pitcher, C. Roland ; Rijnsdorp, Adriaan D. ; ...
Source: Proc Natl Acad Sci U S A. 2018 Oct 23; 115(43): E10275-E10282.

[PDF-1.12 MB]

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Journal Title:

Proceedings of the National Academy of Science of the United States
Personal Author:

Amoroso, Ricardo O. ; Pitcher, C. Roland ; Rijnsdorp, Adriaan D. ; McConnaughey, Robert A. ; Parma, Ana M. ; ... More +

Amoroso, Ricardo O. ; Pitcher, C. Roland ; Rijnsdorp, Adriaan D. ; McConnaughey, Robert A. ; Parma, Ana M. ; Suuronen, Petri ; Eigaard, Ole R. ; Bastardie, Francois ; Hintzen, Niels T. ; Althaus, Franziska ; Baird, Susan Jane ; Black, Jenny ; Buhl-Mortensen, Lene ; Campbell, Alexander B. ; Catarino, Rui ; Collie, Jeremy ; Cowan, James H. ; Durholtz, Deon ; Engstrom, Nadia ; Fairweather, Tracey P. ; Fock, Heino O. ; Ford, Richard ; Gálvez, Patricio A. ; Gerritsen, Hans ; Góngora, María Eva ; González, Jessica A. ; Hiddink, Jan G. ; Hughes, Kathryn M. ; Intelmann, Steven S. ; Jenkins, Chris ; Jonsson, Patrik ; Kainge, Paulus ; Kangas, Mervi ; Kathena, Johannes N. ; Kavadas, Stefanos ; Leslie, Rob W. ; Lewis, Steve G. ; Lundy, Mathieu ; Makin, David ; Martin, Julie ; Mazor, Tessa ; Gonzalez-Mirelis, Genoveva ; Newman, Stephen J. ; Papadopoulou, Nadia ; Posen, Paulette E. ; Rochester, Wayne ; Russo, Tommaso ; Sala, Antonello ; Semmens, Jayson M. ; Silva, Cristina ; Tsolos, Angelo ; Vanelslander, Bart ; Wakefield, Corey B. ; Wood, Brent A. ; Hilborn, Ray ; Kaiser, Michel J. ; Jennings, Simon Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ; AKR (Alaska Region)

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ; AKR (Alaska Region) Less -
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.
Keywords:

[+]

Dredging (Fisheries) Habitat
Source:

Proc Natl Acad Sci U S A. 2018 Oct 23; 115(43): E10275-E10282.
DOI:

https://doi.org/10.1073/pnas.1802379115
Pubmed Central ID:

PMC6205437
Document Type:

Journal Article
Rights Information:

Other
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PMC
Main Document Checksum:

[+]

urn:sha256:a533eabd0d8ba34de43d37ab6163001a6d7d5161a50d2a02df301a5da11c51c3
Download URL:

https://repository.library.noaa.gov/view/noaa/24377/noaa_24377_DS1.pdf
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Appendix (via publisher)

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