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


if a fleet has 10 boats today, one generation later, the same 10 boats have the fishing power of 20 vessels, and of 40 in the next generation.

Technological advances allow fleets to double fishing capacity

Click on the flag for more information about Canada CANADA
Tuesday, September 17, 2019, 22:50 (GMT + 9)

Technological advances are allowing commercial fishing fleets to double their fishing power every 35 years and put even more pressure on dwindling fish stocks, new research has found.

Researchers from the Sea Around Us initiative at the University of British Columbia analyzed more than 50 studies related to the increase in vessels’ catching power and found that the introduction of mechanisms such as GPS, fishfinders, echo-sounders or acoustic cameras, has led to an average two per cent yearly increase in boats’ capacity to capture fish.

“This means that if a fleet has 10 boats today, one generation later, the same 10 boats have the fishing power of 20 vessels. The next generation, they have the power of 40 boats, and so on,” said Deng Palomares, the Sea Around Us project manager and lead author of the study, which was published yesterday in Ecology and Society.

Simulated increase in effective effort over a 50-yr period comprising a mixture of background rates (% technological creep = 1 and 2%) and rapid increases (5%) due to technological improvements. The average rate of technological creep (2.41%; dotted line) is obtained by comparison of the beginning and end estimates of effective effort but can be approximated by an average rate of increase weighted by the number of years (2.42%).

An increase in fishing power is known as ‘technological creep’ and it’s usually ignored by fisheries managers who are in charge of regulating how many days and hours and technique each vessel under their oversight is supposed to fish in a given period.

“This ‘technological creep’ is also ignored by most fisheries scientists in charge of proposing policies,” said Daniel Pauly, the Sea Around Us principal investigator. “They tend to conduct short-term studies that only take into account nominal effort, which is, for example, the number of boats that fish using longlines in one year, employing ‘x’ number of people. However, they are disregarding the effective effort those vessels are deploying thanks to the technology that allows them to either maintain their catches or catch more fish.”

Relationship between technological creep and the period to which the estimate applies. C% = percent change in technological creep per year; ln(C%) = 2.625 − 0.511 × ln(Year) (r2 = 0.153, r = −0.3906, df = 49, P < 0.0046). The X on the regression line indicates an average fishing power increase of 3.4% for the average period of 15 yr; dashed lines indicate the 95% confidence limits.

In their paper, Palomares and Pauly propose a new equation that allows fisheries managers and scientists to easily estimate technological creep precisely and determine a fleet’s effective effort.

“This is important because if you don’t understand that the increase in power is happening, then you don’t understand that you can deplete a stock,” Pauly said. “We already know that marine fisheries catches have been declining by 1.2 million tonnes per year since 1996 so, by prompting boats to fish deeper and farther into the high seas, these new technologies are only helping the industry compensate for the diminishing abundance of fish populations.”


[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Chile
Aug 15, 05:40 (GMT + 9):
Other Media | aqua.cl: Investment of US $ 5 million: Cermaq presents DIA to modify farming center
Argentina
Aug 15, 05:00 (GMT + 9):
Other Media | iPac.acuicultura: Argentina sees in aquaculture an opportunity for economic growth
Norway
Aug 15, 02:00 (GMT + 9):
IN BRIEF - Norwegian fishing vessel capsized during mackerel fishing
Denmark
Aug 15, 01:00 (GMT + 9):
Biomar achieves best half ever during lockdown period
United States
Aug 15, 01:00 (GMT + 9):
Other Media | SeafoodSource: Canadian government kicking off seafood harvester COVID-19 aid program
Argentina
Aug 14, 20:00 (GMT + 9):
Some challenges that the Argentine 'added value' plan will have to face
Japan
Aug 14, 18:00 (GMT + 9):
IN BRIEF - Natori will release 'vinegar squid stick', with individually wrapped
United States
Aug 14, 17:20 (GMT + 9):
IN BRIEF - Serafin Fishery Issues Allergy Alert on Undeclared Anchovies in Salmon Dip and Whitefish Dip
Peru
Aug 14, 17:00 (GMT + 9):
IN BRIEF - Anchovy fishing increased 17.4% and ends tomorrow
Norway
Aug 14, 16:10 (GMT + 9):
AKVA group ASA: 2Q and 1H 2020 financial reporting
United Kingdom
Aug 14, 16:00 (GMT + 9):
IPNLF Three Initiatives Event Invitation
Indonesia
Aug 14, 15:00 (GMT + 9):
IN BRIEF | VNU Asia Pacific and  PT Global Permata Perkasa join forces and present AQUATICA ASIA, Co-Located  with  ILDEX Indonesia
European Union
Aug 14, 14:00 (GMT + 9):
Other Media | Industrias Pesqueras: The Map gives a month to verify the accumulated Mediterranean red coral before the start of the closure
Chile
Aug 14, 12:20 (GMT + 9):
Other Media | SalmonBusiness: Australis salmon feed lawsuit: 'We consider that it is our duty to intervene actively'
Worldwide
Aug 14, 11:00 (GMT + 9):
Other Media | fishfarmingexpert: Aquaculture produces 0.49% of man-made greenhouse gases



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Press Release: A better take on toothfishing – right down the line (video)
Norway When asked why a group of Norwegians would go all-in for longline fishing in Antarctic waters, oceans apart from their North Sea home base, Arne Birkeland has a disarmingly sincere reply: “We ar...
Japan and Vietnam ink first maritime patrol ship deal as South China Sea row heats up
Japan Japan has signed a ¥36.6 billion ($345 million) loan agreement with Vietnam to provide the Southeast Asian country with six patrol boats to boost its maritime law enforcement capabilities, as Beij...
Samherji significant net loss in Namibia and taxes paid
Iceland Last week Samherji announced that the investigation into the company's operations in Namibia, conducted by Norwegian law firm Wikborg Rein, had been completed. The announcement outlined the next steps...
A new fish processing plant opened in the Kuril Islands
Russia Fed. A new fish processing plant was put into operation in the city of Severo-Kurilsk on Paramushir (northern group of the Great ridge of the Kuril Islands, Sakhalin Oblast). The  company "Alaid" will ...
 
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