Welcome to FIS   Sponsored By
United States
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


Other Entities Involved: AZTI; Global Fishing Watch; Seychelles Fishing Authority

New global atlas analyses AIS use to monitor fishing activity

Click on the flag for more information about Italy ITALY
Wednesday, November 20, 2019, 00:10 (GMT + 9)

Fishing vessels with Automatic Identification Systems (AIS) increasing by 10 to 30 percent each year

A new global atlas - the first-ever of its kind - analyses the opportunities and challenges of using Automatic Identification Systems (AIS) to monitor fishing activity around the globe.

AIS is a tracking technology designed for navigation safety that transmits a ship's location, identity, course and speed. By using machine-learning algorithms, AIS information allows us to identify vessel's activity at sea.

Table Mapping between AIS and fishery indicators concepts. The color intensity in the cell represents the level of importance of the AIS data factors (use, reception, and algorithm performance) for providing a good estimate of the concerned fisheries indicator.

The number of fishing vessels with AIS is increasing by 10 to 30 percent each year, making this technology more and more informative with time.

"AIS provides detailed tracks of tens of thousands of industrial fishing vessels, and this detailed tracking data has the potential to provide estimates of fishing activity and effort in near real time. This Atlas assesses this potential and shows that AIS can start to be considered a valid technology for estimating fishing indicators," said FAO, the Global Fishing Watch (GFW), AZTI and the Seychelles Fishing Authority in the foreword of the Atlas issued on the sidelines of FAO's International Symposium on Fisheries Sustainability.

 

A: Confusion Matrix Showing High Model Accuracy at Classifying Test Data

Global Fishing Watch (GFW) published in 2018 a first global database of fishing operations based on AIS data. This dataset tracked the activity of over 60,000 fishing vessels, and was used to understand fishing around the world.

But the use of this new technology for monitoring fishing activity needed verifying and reviewing so fisheries managers and policy makers can fully understand its strengths and limitations.

B:Confusion Matrix Showing High Model Accuracy at Classifying Test Data

The 400-page Global Atlas on AIS-based Fishing Activity provides this detailed review, and can prove a useful tool for improving sustainable fisheries management in line with SDG14.

It is the result of a two-year analysis of the GFW data, region by region, drawing on the knowledge of 80 fisheries experts, FAO fisheries data, and other scientific databases. The atlas also includes two local comprehensive analyses - on all fisheries in the Bay of Biscay and Seychelles' tuna fisheries.

The Atlas finds that in some regions, AIS data can provide a near comprehensive view of fishing activity, this is for example the case in the northern Atlantic for vessels above 15 metres in length, whilst in other regions, this data provides only a small fraction of the fisheries activity, as is the case of the Indian Ocean. This is partly due to the large proportion of artisanal or small size vessel sizes in many central and southern regions, but also because of lower use of AIS by larger vessels in regions such as Southeast Asia.

Number of vessels larger than 24m that used AIS in China (A) and the world’s 20 largest fleets (B), compared with fleet capacity measured by FAO fleet statistics. Because China’s fleet has almost two thirds of the world’s fishing vessels larger than 24m, it is shown separately (red bar). Active vessels are represented by dark shading, inactive by light shading, as defined by vessels having more than or less than 24 hours of fishing in the 2017 GFW AIS dataset. A vessel is a unique MMSI that was identified as fishing by GFW (see Identification of Fishing Vessels and Gear Types) and was not used by multiple vessels. (Click to enlarge)

The Atlas confirms that the Northwest Pacific (FAO Fishing Area 61) and Northeast Atlantic (Area 27) are the areas with more industrialized fisheries and where AIS technology is more adopted. The largest discrepancy between AIS-based information and other fishing data occur for fishing activity in the Eastern Indian Ocean (Area 57).

Class A AIS coverage in North Atlantic (FAO Area 27) during 2017

Key findings:

  • AIS can track the majority of the world's large fishing vessels (above 24 metres), especially from upper and middle-income countries and territories, distant water fleets and vessels on the high seas.
  • For monitoring fishing activity, AIS data has its limitations. AIS is carried by a small number of the world's 2.8 million fishing vessels, and compared to the Vessels Monitoring System (VMS), vessels can more easily turn off their AIS or broadcast incorrect identity information.
  • AIS use varies significantly by fishing areas. In Europe, almost all vessels over 15 meters have AIS. In Southeast Asia, very few have AIS and reception quality is poor.
  • AIS data is limited for multi-gear vessels as highlighted in the analysis on the Bay of Biscay.
  • AIS is still limited in terms of its capacity to discriminate types of fishing activities for smaller scale fisheries using multiple combinations of fishing gears.
  • AIS can provide information on fishing activity much more rapidly than logbooks or official assessments via VMS. However, AIS's level of detail (e.g. number of fishing gear or species captured) could be insufficient for many other uses.
  • Longliners with wide presence in high seas worldwide are the type of vessels better captured by AIS-based algorithms. AIS also captures well other main fishing gears such as purse seiners and trawlers, but tend to underrepresent their importance compared to longliners. This is confirmed by worldwide catch data showing that the order of prevalence of fishing gears is trawls, purse seines, longlines and other gears with variations across FAO areas.
  • AIS could start to be considered as a viable technology for near real time estimates of fishing effort and marine spatial planning provided it is supported by human verification given its variable accuracy. 


editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Chile
Jul 6, 02:10 (GMT + 9):
Greenpeace denounces: 'One week after the biggest salmon escape of the decade they find less than 1%'
Norway
Jul 6, 01:00 (GMT + 9):
Increased minimum price for North Sea herring for consumption from 6 July 2020
Norway
Jul 6, 01:00 (GMT + 9):
The mackerel cruise goes - follow it online
Japan
Jul 5, 15:00 (GMT + 9):
Kindai fish farm restaurant to open in Ekinaka, Tokyo station in August
Poland
Jul 5, 12:00 (GMT + 9):
Other Media | SalmonBusiness: Europe’s second largest seafood chain pushes back UK launch
China
Jul 5, 10:00 (GMT + 9):
Other Media | SeafoodSource: Two Hands, SeafoodChain push blockchain as seafood origin guarantor in China
United Kingdom
Jul 5, 09:00 (GMT + 9):
Other Media | fishfarmingexpert: Wild salmon body hires aquaculture go-between
Russian Federation
Jul 5, 08:00 (GMT + 9):
Other Media | FiskerForum: Norebo orders four longliners
Norway
Jul 5, 03:00 (GMT + 9):
Kongsberg Maritime introduces Health Management: holistic equipment monitoring for ships
United States
Jul 5, 02:10 (GMT + 9):
Senators Call for Mass. Lobster Industry to be Included in Lobster Tariff Assistance
Finland
Jul 5, 00:10 (GMT + 9):
World’s first full scale ammonia engine test - an important step towards carbon free vessels
Denmark
Jul 4, 00:10 (GMT + 9):
Aller Flow, the new feed for Atlantic Salmon in Recirculating Aquaculture Systems (RAS)
United States
Jul 4, 00:10 (GMT + 9):
Bristol Bay fishermen await word on Pebble Mine permit at the height of fishing season
United States
Jul 3, 16:40 (GMT + 9):
How are oysters farmed – and what’s the effect on subaqueous soils?
Russian Federation
Jul 3, 16:40 (GMT + 9):
Barents Sea │ Crabs TAC | King Crab | Snow Crab (Opilio)



Lenguaje
FEATURED EVENTS
  
TOP STORIES
John West to launch Norwegian sister brand King Oscar
United Kingdom King Oscar sardines go on sale in Waitrose on 6 July  John West Foods will launch its Norwegian sister brand King Oscar in the UK for the first time next week. The premium Thai Union-owned seaf...
The anchovy stock in the Bay of Biscay registers its historical maximum
Spain The estimate of anchovy biomass this year is around 330,000 tons, according to data from the Bioman campaign, promoted by AZTI. The figure, the highest since this study started in 1987,...
Australia’s failings an opportunity for China as it signs PNG fisheries deal
Australia As China works vigorously to increase its influence in the region, it is stepping up its efforts to undermine Australia’s influence in Papua New Guinea (PNG) and the South Pacific, and Australia...
New knowledge about salt fish production
Norway Now a salt status has been created for the salt quality used for clipfish and salt fish production, and how the salt can affect the finished fish product. A prototype for cleaning and washing salt for...
 
Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods, Inc
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO - Food and Agriculture Organization - Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly Marine Harvest ASA) - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2020 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER