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

Seafood Summit 2011 was attended by over 700 people. (Photo: YouTube, SeaWeb/FIS)

Seafood producers tackle ocean acidification at annual Summit

Click on the flag for more information about Canada CANADA
Monday, February 21, 2011, 23:50 (GMT + 9)

From 31 January to 2 February, more than 700 conferees from 30 countries convened at Seafood Summit 2011 in Vancouver, Bristish Colombia (BC). There they wrestled with how to improve the sustainability of commercial fishing and aquaculture.

Now in its ninth year, the event drew 40 per cent of its attendees from the seafood business. Industry personnel joined conservationists, researchers, and government officials in discussing a range of sustainability issues - marine spatial planning, traceability shortcomings, and next-generation aquaculture among them.

The toughest item on the agenda may well have been ocean acidification, which only recently has emerged as a major issue to those concerned with food security and the productivity of our seas.

Scientific and journalistic coverage of this problem has exploded; a search on Google Scholar shows more than 25,700 articles, most of them published since 2006.

Acidification results from CO2 in the atmosphere combining with sea water to form carbonic acid. The oceans absorb about a third of human society’s CO2 emissions every year.

Since the Industrial Revolution began, the ocean’s chemistry has changed hundreds of times more rapidly than in the 650,000 years that preceded it. 

The results include a 30 per cent increase in hydrogen ions and a 16 per cent decrease in carbonate ions, which organisms use to make shells, skeletons, and reef systems.

These organisms create marine ecosystems and refuges (coral reefs) and provide food for fish (krill, pteropods, shellfish larvae) and humans (oysters, mussels, clams). Recent research reveals just how threatened such species are by acidification, especially in their early stages of growth.

Harvesting.  (Photo: YouTube/SeaWebOrg)

In some places, the effects of acidification are amplified by compounding factors, such as nutrient runoff, phyloplankton blooms, and eutrophication.

Unfortunately, the “hot spots” worldwide appear to be the same waters that support the most productive fisheries, including upwelling zones, cold high-latitude seas, and estuaries. 

Shellfish hatcheries that supply the AmericaWest Coast oyster industry are already  experiencing - and developing strategies to endure - severe effects on their vulnerable young larvae.

On the opening day of the Summit, Brad Warren, of the Sustainable Fisheries Partnership, moderated a panel on how the seafood industry can combat ocean acidification.

Bill Dewey, the Public Policy and Communications Director for Washington state-based Taylor Shellfish; Kristian Teleki of SeaWeb; and National Oceanic and Atmospheric Administration (NOAA) Scientist Richard Feely participated.

The event drew an SRO audience of 80 or so, leaving latecomers to linger in the hall and listen. Warren said the crowd indicated the growing awareness of the problem. A similar session at last year’s Seafood Summit in Paris attracted only 30 people.

Dewey told the audience of the crisis West Coast oyster growers recently faced. For Taylor, the largest farmed shellfish producer in the US, acidification is not a future threat estimated by modeling or projections.

“It’s here now, during 2007-2009, our hatchery production fell 70-80 per cent. Other West Coast operations were also devastated. At the Whiskey Creek Hatchery in Netarts Bay, Oregon, oyster larvae dissolved in their tanks," Dewey said. 

"Even hard-fouling of the intake pipes ceased. We believe corrosive water was a major factor and may well be part of why there has not been  a wild set of Pacific oysters on the Washington coast for six years.”

Fresh farmed scallops. (Photo: SeaWebOrg )

Water with a pH as low as 7.4 had been drawn from Dabob Bay, where Taylor’s main hatchery is located. Hatchery operators at Taylor and Whiskey Creek started monitoring CO2 levels and adjusting the depth and time of day when they drew seawater in order to avoid CO2-rich water that kills larvae.

The two firms have been able to restore about 75 per cent of the larvae production that they lost in earlier years, showing that “bad water” can be dodged, at least for now. 

But immediate adaptation is only part of the solution for Taylor and other shellfish producers. Longer range, oyster growers are trying to cultivate more resilient broodstock, with scientists at Oregon State University and the U.S. Department of Agriculture's (USDA) Agricultural Research Service leading the research.

And Taylor has become active in promoting continued research, increased monitoring, and reduced carbon emissions.

“With the scientists telling us that the corrosive water upwelling on our coast is fifty years old we know this problem isn’t going away anytime soon” says Dewey. 

“We’ve seen the impacts of these waters first-hand and feel obligated to speak out and make others aware of the serious consequences of carbon emissions.”

Mike Mitchell, Technical Director for The Seafood Company of the UK’s Findus Group, the second largest food brand in Europe, agrees.

On the Summit’s final day, Mitchell quoted Warren’s remark that “trying to prevent climate change by reducing emissions in the seafood industry is like trying to save a burning house by dousing a toothpick.”

Analysts estimate that the fishing industry contributes 0.2- 0.6 per cent of the world’s human-produced carbon emissions. 


The take-home message for Mitchell is “Full speed ahead on reducing the seafood industry’s own emissions, but don’t stop there. Our real aim is to keep oceans making lots of fish. So the objective is not just to reduce our emissions.

"That’s good and necessary but not sufficient. The real promise here is to use the industry's CO2 reduction/efficiency efforts as part of a larger awareness-building initiative leading to policy and governance that protect the climate and the oceans that sustain us.”

To Warren, the West Coast oyster larvae are “the proverbial canary in the coal mine.” He is concerned that fear of ocean acidification will paralyze people.

“If they think a problem is just too big, people tend to give up or ignore it. We have to realize that this is just another resource management issue. Reducing carbon emissions is doable and it need not cripple us economically.“

He cites the nation’s first mandatory regional cap-and-trade system, the Regional Greenhouse Gas Initiative. The 10 participating Northeastern and Mid-Atlantic states are capping and reducing CO2 emissions from the power sector.

“Far from killing jobs,” Warren says, “the RGGI is actually saving jobs in the Northeast’s industrial economy. Funds from the program pay for energy efficiency improvements that make companies more competitive and allow them to retain jobs instead of shutting down or moving operations overseas."

“Acidification is a risk to seafood production, but it’s a risk that can be managed in at least two ways. One is to prevent the change in seawater chemistry from getting out of hand," Warren says. 

"That will require public policies to control the flow of acidifying wastes like CO2 and nitrogen into the ocean. The second way to protect seafood supplies is to monitor seawater chemistry closely so you can evade some of the harm that can’t be prevented.“

For the rest of the seafood industry, the lessons from Taylor and other oyster growers may be indispensible. They have demonstrated that it’s possible to adapt, dodge, and start working to confront the causes of this problem.

Seafood helps feed billions of people and the demand is steadily rising. As Mike Mitchell observed, the challenge now is to make sure the oceans keep making plenty of it.

Note: The December 2010 UN report on ocean acidification and food security can be downloaded from http://productiveoceans.org/studygroup/news

By Eric Swenson*
[email protected]

*Eric Swenson coordinates the Productive Oceans Study Group for the Sustainable Fisheries Partnership. The Study Group brings seafood industry leaders together with scientists, policy specialists, and sustainability experts to address threats to seafood production, especially ocean acidification. For several years, Swenson has covered commercial fishing, contributing feature articles to Pacific Fishing, Seafood Business, and National Fisherman, where he was also a field editor. His beats include conservation, tuna and salmon, and new technology. Contact: [email protected].


Click to know how to advertise in FIS
Sep 17, 22:50 (GMT + 9):
Technological advances allow fleets to double fishing capacity
Sep 17, 22:50 (GMT + 9):
China lifts temporary suspension of shrimp exports from Omarsa
Sep 17, 22:40 (GMT + 9):
Investors prioritising technology and aquaculture goes digital (Video)
Sep 17, 21:50 (GMT + 9):
Salmon exports reach new record
Sep 17, 20:00 (GMT + 9):
Peruvian fisheries industry tries to devote more to canned food production
Sep 17, 14:20 (GMT + 9):
Prices and markets of exports of whole capelin and roe (January-July 2018/2019)
Sep 17, 14:10 (GMT + 9):
Atlantic salmon export: Prices and markets (Salmo salar) W36
Sep 17, 06:00 (GMT + 9):
Finnish investor backs expansion of Zambian tilapia producer
Sep 17, 05:10 (GMT + 9):
Jack mackerel exports register exponential growth
Viet Nam
Sep 17, 05:00 (GMT + 9):
Pangasius companies' stock prices plummet (Video)
Russian Federation
Sep 16, 23:30 (GMT + 9):
TSU researchers developed thermal labels to determine fish freshness
United Kingdom
Sep 16, 22:50 (GMT + 9):
Research project explores feed's role in farmed fish parasite control
Sep 16, 22:20 (GMT + 9):
Govt seeks to solve in China restriction on the entry of Ecuadorian shrimp
Sep 16, 21:20 (GMT + 9):
Mollusc production area closed due to health risk of hepatitis virus
Sep 16, 19:00 (GMT + 9):
IN BRIEF - Malta paying too high a price for fish-farming - PD

'Unfair' fee discourages tuna processing and fishing industry
Papua New Guinea The domestic tuna processing and fishing industry is not happy that they are paying the same vessel day scheme (VDS) fee as distant water fishing nations at USD 10,500 (PGK 35,713) per day. PNG Fis...
Fisheries sector defends aid to sustainable fishing and calls for eliminating those that encourage illegal fishing and overfishing
Switzerland Alerts that the elimination of the tax exemption to fuel would create inter-territorial imbalances, increase the prices of fishery products and impact on the profitability of the fleet, especially art...
Weekly movements of fishmeal and fish oil (Norway, China, Peru) Week 36-37
Worldwide Through week 36,  550,311 tonnes of fish were destined for reduction at an average price of NOK 2.85/kg, down 19% on those destined for such purpose during the same period in the previous year. ...
Transshipments in Western, Central Pacific likely underreported, warns Pew
United States The Western and Central Pacific Fisheries Commission’s (WCPFC’s) management of transshipments in its waters is compromised by significant gaps in reporting, monitoring, and data sharing, a...
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 -Headquarter-
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
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
Mitsubishi Corporation Marine Products Depts. D.Team
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) -Headquarter-
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
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2019 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER