Fish Farms

Government-funded group switches sides on risks of fish farms
February 11, 2008 (Vancouver Sun) Pacific Salmon Forum now agrees sea lice are killing salmon
In a major blow to British Columbia's salmon farming industry, a government-funded research group says it now accepts a recent scientific study that warns of mass extinctions of wild pink salmon on the central coast due to salmon farming.
In an uncirculated "communique" obtained on Friday by The Vancouver Sun, the Pacific Salmon Forum has acknowledged that sea lice infestations contributed to plummeting pink salmon populations in the Broughton Archipelago from 2001-2005 -- as noted in a recent article in Science, a leading international research journal.
The article by Martin Krkosek, co-researcher Alexandra Morton and others, drew international attention. It warned that wild pink salmon could be extinct within four years on the B.C. central coast due to sea lice infestations arising from salmon farms in that area.
Last year, a provincial legislature committee studying fish farming also recommended the industry switch from open-net sea pens to closed-containment pens that would prevent lice infestations at farms from spreading to wild fish migrating in the vicinity.
Both recommendations have been ignored by the province.

B.C. fish farms linked to sea lice outbreak January 27, 2007 (Toronto Globe and Mail) For the first time in Canada, scientists have used data from the world's largest aquaculture company to draw a link between sea lice from Atlantic salmon on British Columbia fish farms and soaring infection rates in wild salmon migrating nearby.

Mass escape from Norway's fish farms threatens wild salmon
January 5, 2007 (Yahoo News) Some 790,000 salmon and trout escaped from Norwegian fish farms last year, up 10 percent on the previous year and a trend that poses a serious threat to wild salmon, the Norwegian Directorate of Fisheries has warned.
The lax security at fish farms is "a criminal act that must be sanctioned the same as a hold-up or a rape," the head of the directorate, Peter Gullestad, told AFP.
The fish raised on farms are carriers of parasites such as sea lice, which infect wild salmon and other maritime life.
The fish that escape the farms, located in fjords and rivers along Norway's west coast, infect young wild salmon before they head off to the open sea, threatening their immune systems which are not yet fully developed.
"It's dramatic. We're talking about a genetic cleansing of wild salmon," said Espen Farstad, a spokesman for the Norwegian hunting and fishing association NJFF.
A total of 39 of 75 fish farms inspected by the directorate did not meet current standards.
"The farmers do not have control over the situation. Authorities' controls are not sufficient. We are calling for a list of the fish farms at fault and for them to be boycotted," Maren Esmark of the Norwegian branch of the environmental group WWF told AFP.

Industrial salmon costly to environment
November 9, 2006 (Seattle Post-Intelligencer opinion by Alexandra Morton) Many in British Columbia, from fishermen to First Nations chiefs, are now calling for sustainable salmon-farming practices that would allow wild salmon, and all that depend on them, to survive. Yet, foreign-owned industrial salmon production companies are pushing to double the current number of cages, putting wild Pacific salmon at critical risk. Consumers, however, can make the difference. And to make our voices heard, we needn't look any further than our pocketbooks.
Wild salmon are a sacred gift. From the moment their pink translucent eggs drop into cold mountain streams, they support life around them. They act as a virtual blood stream; their movement of ocean nutrients is key to the health of the land and sea.
Industrial salmon production breaks this essential flow. Just one facility can hold more than a million fish. Perverting natural laws, pressing salmon into feedlots thick with feces, stimulates viruses, bacteria and parasites to grow unchecked. The pollutants and parasites metastasize from the pens and spread via ocean currents to contaminate wild fish with pathogens at a magnitude they were never designed to handle.
Benign to adult salmon, small parasitic sea lice graze on the exterior of fish. Nature kept these parasites away from defenseless newly hatched wild salmon, but the mega- salmon farms have brought the two together, with disastrous consequences.
Dead fish cannot return to spawn. Eagles, orca whales, grizzly bears and human communities all suffer, as a vital link in their food chain is severed. Some rivers in the Broughton Archipelago had fewer than 50 pink salmon return last year, with this fall shaping up as another disaster. There should be millions.

Study finds lice from fish farms kill tiny salmon
October 3, 2006 (Seattle Times) A team of Canadian scientists has found the most direct evidence yet that baby salmon pick up fatal infections of sea lice while swimming past salmon farms in British Columbia's Broughton Archipelago, and that the more salmon farms the more baby salmon die.
"Before we knew there were potential problems," said Martin Krkosek, a doctoral student at the University of Alberta who was lead author of the study released Monday by the American journal Proceedings of the National Academy of Sciences. "Now it is very clear we have severe problems here."
In natural conditions, the adult salmon that carry the sea lice aren't in the migration channels and rivers at the same time as young pink and chum salmon, so the little fish are not infested, said Mark Lewis, University of Alberta senior Canada research chair in mathematical biology, who oversaw the research.
But fish farms have changed that, raising hundreds of thousands of adults in floating net pens anchored year round in the channels where the young fish migrate. The young pink and chum salmon are only an inch long, and do not yet have scales to protect them from parasites, he said.
Ransom Myers, a professor of biology at Dalhousie University in Nova Scotia, who was not part of the study, said it was the most comprehensive to date on the issue and hoped it would push the Canadian government to take action to protect wild salmon.

Bad image of fish farms impeding industry
June 16, 2006 (Victoria Times Colonist) Sagging public confidence in Canada's controversial fish farm industry -- regarding both its environmental practices and product safety -- is impairing Canada's ability to take advantage of booming world seafood demand, according to a federal briefing document obtained by CanWest News Service.
"While support for aquaculture is stronger in Central and Eastern Canada, the B.C. salmon aquaculture industry continues to face severe criticism by environmental organizations and negative media coverage," warns the Feb. 3, 2006, summary prepared for the Conservative government.
"The criticism has compromised the public's confidence in the industry and the (Fisheries) Department's management of it."
The criticism and negative media coverage, particularly of sea-lice outbreaks on both coasts, has resulted in "a loss of consumer confidence in the environmental performance of the industry and the safety of its products, public confidence in governments as regulators of the sector, and investor confidence in Canada as a place to invest and do business."

Fish farms challenge our commitment to the wild
March 19, 2003 (High Country News) Over the past decade, consumers across the nation have unknowingly witnessed an equally miraculous feat — inexpensive salmon fillets and steaks, available year round, at $3 a pound. This bounty, whether found in open-air markets, or under the cold fluorescent lights of a supermarket, has been brought to us by salmon farms. It’s a quiet revolution that has transformed salmon from a white-tablecloth item into a meal that almost anyone can afford.
Enter this new player. Salmon farms threaten the health of wild stocks. They’ve taken a bite out of the market share of commercial fisherman. The multinational companies that run fish farms say that they’re working to be better neighbors and to prevent future harm to wild stocks. But even if these challenges are met, farmed salmon may be the Eucharist in the Church of Apathy.
For those of us who don’t live in salmon country, who haven’t tasted the moist fecund air and heard the mumbling brooks; who haven’t seen (and will never see) the waters writhing with an in-migration of these powerful fish, the abundance of farmed salmon is an opportunity to let our collective conscience slumber again. It allows us to put down this remote and complex riddle of habitat protection, federal laws and treaties, and hydropower-producing dams.
We laugh, but it’s easy to see the results of similar unconscious choices of the past: The great bison herds that once roared across the Plains are gone, and in their place we have industrial cattle feedlots. Now, with the advent of fish farms, we’re seeing the same wholesale replacement of creation with industrialized food production. This is a dangerous illusion: that we can enjoy the bounty of nature without protecting rivers, streams and landscapes.

Farmed salmon turfed from menu at Milestone's
March 13, 2003 (Victoria Times-Colonist) Farmed salmon has lost its spot on the menu at the Milestone's restaurant chain.
Beginning Friday, all 23 of the company's restaurants, including Victoria's Inner Harbour site, will replace farmed salmon with exclusively wild stock. The move has been entirely consumer-driven, said Cathy Tostenson of the chain's Vancouver head office.
"This decision to go from farmed to wild was based on guests requesting the change," Tostenson said. "Our guests have been questioning us as to why we have farmed salmon on the menu."
Milestone's has 15 restaurants in B.C., seven in Ontario and one in the U.S. The Victoria restaurant is one of the busiest.
Thrifty Foods had good customer response to its recent offering of so-called "eco-salmon" -- salmon raised in a closed-pen system rather than in conventional net pens in the ocean.

Salmon virus costs fish farms millions
March 5, 2003 (Victoria Times-Colonist) More research, co-ordination and money are needed to combat the problem which has resulted in "devastating death rates" at farms, said the B.C. government report, released Tuesday.
"There is certainly a need for co-ordination," said Al Castledine, acting director of aquaculture development for B.C.'s Fisheries Ministry.
It is clear that infectious hematopoietic necrosis -- IHN -- is a serious problem for farms, Castledine said. "We have seen no linkage to wild fish other than they are the original source of the disease." Even so, the issue can not be ignored, he said.
Environmentalists, fearing that IHN can harm wild Pacific salmon, are again calling for an end to open net cages in B.C. waters.
IHN exists naturally in the environment and was first recognized in the 1950s. It spikes at different times, with the first outbreaks at fish farms reported in the early 1990s.
As for why more cases are showing up now, "I guess that's the $64 question. I don't think anybody can really tell you that," said B.C.'s chief veterinarian, Dr. Ron Lewis.
The disease selectively attacks blood-forming cells so a fish's immunity drops. It cannot be treated. Pacific salmon are not as susceptible to the virus as farmed Atlantics, said Lewis.

Sea lice affecting this season's smolts, scientist finds
March 4, 2003 (Vancouver Sun) Preliminary research by independent marine scientist Alexandra Morton points to major problems with sea lice affecting pink salmon smolts currently travelling near fish farms in the Broughton Archipelago.
Morton, who two years ago brought the problem of sea lice in the area to the attention of both the federal department of fisheries and oceans and the provincial ministry of agriculture, food and fisheries, reported that of the six sample fish she tested over the weekend, three were infected with sea lice.
On Monday, scientists from the DFO were also in the Broughton Archipelago conducting research of their own, but John Pringle, manager of the Pacific region's environmental and habitat sciences division, said he had not received any information from the scene.
Consequently, he said it would be premature to comment on Morton's numbers. "We're very concerned, obviously, but we can't say much more than that."
"We're finding the whole area is loaded with lice," she said.
Jennifer Lash of the Living Oceans Society said it is too early to draw any conclusions about the levels of sea lice in the archipelago, but it looks to her and Morton as if the so-called safe migration route set aside by farms and the province for wild pink smolts is anything but.

'Lessons not learned' in Ireland
March 3, 2003 (Vancouver Sun) Sea trout once supported a thriving business -- until sea lice wiped them out
"The awful thing is about lessons not learned," Greg Forde sighed when I told him the story of the pink salmon crash last year in six of B.C.'s Broughton Archipelago rivers and the suggestion by some scientists that sea lice from fish farms along the migration route were responsible. An estimated 31/2 million salmon, minimum, failed to return from their migration to the sea from the pristine region 300 km northwest of Vancouver.
Forde is a big, rawboned, forthright man who once worked in the fish farming industry but now works for Ireland's western regional fisheries board. He's been struggling with a similar collapse of wild stocks that he says is also associated with salmon farms all along the Irish coast.
"What we're hearing from Canada is that the sea lice are a factor where salmon farms are located on the salmon migration routes," Forde said. "It's all deja vu. It's the most frustrating thing to hear what's happened here has now happened in B.C."
"Norway had some of the best rivers in the world for the production of massive salmon -- they are just gone," he says. "Why couldn't we learn from that? Why can't you learn from us? Is the B.C. government willing to make a place in the scheme of things for indigenous species?"
"There are areas that must be left virgin for the wild fish. Where we have bays and rivers with no fish farms, the sea trout runs are basically healthy." Forde says. "What we would recommend is that fish farms be located only in areas where there are no rivers with migratory salmonid stocks."

Ottawa plan for fish farm study 'corrupt, inadequate'
February 21, 2003 (Vancouver Sun) Wild salmon pushed almost to extinction, biologist says
The federal department of fisheries and oceans has announced a long-term study of fish farming and its effect on wild pink salmon in the Broughton Archipelago, an action immediately condemned as inadequate by an independent biologist concerned the fish stock is on the brink of extinction.
"They're going to experiment on a stock that's almost extinct -- that's sad and negligent," said marine biologist Alexandra Morton when she learned of the DFO plan to monitor pink salmon smolts travelling through the archipelago on their way out to sea.
"I think that's criminal. I think that's corrupt."
Morton and other biologists say sea lice multiplying in salmon farms located in the archipelago are to blame for a dramatic drop in wild pink salmon numbers last year. In late 2002, only 147,000 adult pink salmon returned to spawn in the archipelago -- east of the midpoint of Vancouver Island -- down from 3.6 million two years earlier.

In The Northwest: Opponents are raising a stink over B.C. fish farms
February 21, 2003 (Seattle Post-Intelligencer) As we traveled up Bedwell Sound on Vancouver Island in a buddy's Zodiac boat, one rule of British Columbia fish farms was quickly learned: You smell the pens before you see them.
Fish farming has been kept out of Alaska: The 49th state fears that farmed fish, primarily Atlantic salmon, would escape from their pens and damage native Pacific fish runs.
The inlets and estuaries of Washington, bordered by high human populations, have not been conducive to the pungent-smelling pens.
By contrast, British Columbia has opened its coastline despite protests from natives and environmentalists. As well, European-based fish farm operators have opened their checkbooks to political candidates of the B.C. Liberal Party headed by Premier Gordon Campbell.
A Nanaimo laboratory, run by Canada's Department of Fisheries and Oceans, has the job of promoting fish farms while simultaneously being charged with investigating reports that farmed fish have infected wild pink salmon with sea lice.
"It is worth reiterating that wild salmon must come first; they cannot be replaced," Fraser wrote.
The collapse of wild pink salmon populations is particularly acute near the Broughton Archipelago off northern Vancouver Island. It's also the densest concentration of salmon farms in British Columbia.
The British Columbia government remains very much in bed with the salmon farm industry. It recently tapped, as president of the B.C. Aquaculture Research and Development Committee, the head of a company that supplies antibiotics and chemicals to fish farms.
Protests are accelerating.

A collision of nature and commerce
February 20, 2003 (Vancouver Sun) Salmon farms are being blamed for the collapse of the Bond Sound pink run
"This sea lice thing is so clear. It's just common sense where they are coming from," says Bennett. "To talk about it is labouring the obvious. If you see how the tide works in here, you know that the pinks coming out of Bond Sound go right along the side of the channel and they have to drift right past the fish farm pens."
Morton is a sturdy woman, her strong, animated face framed by long hair that's streaked with grey. I found her preparing to cook dinner at the home she and partner Eric Nelson have built with timber milled at the site, the buildings sprawling down a steep hillside, the paths outlined in the winter gloom by a luminous necklace of clam shells.
"There were millions," she says. "There were fish everywhere, millions and millions of them. I didn't realize then that these vast ribbons of fish were the exceptional output from that big brood year in 2000." Morton began taking samples and she says she discovered that as the smolts increased their proximity to the fish farms, the prevalence of sea lice increased.
"Everywhere I went near the farms, the fish were covered with sea lice when I took them out of the water," she says. "Coho smolts were so frantic to escape the sea lice that they were jumping into boats.
"I noticed bleeding at their eyeballs and bleeding at the base of the fins, which are a classic symptom of fish disease," Morton says. "I was horrified to see these baby fish being ravaged by these parasites. It was an enormous feeling of helplessness."

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Take a look at the Seafood Card.
Seafood is delicious and healthy. Would you like to know if it's caught or farmed in ways that support a healthy environment? Some wild fish populations are disappearing. But others are doing fine. It's important to know the difference when you go shopping or dining out.
Your choice CAN make a difference! This Seafood Card, produced by the Monterey Bay Aquarium, together with the Seattle Aquarium and Vancouver Public Aquarium, can help you choose seafood that's good for you and good for the oceans.

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The SeaWeb Aquaculture Clearinghouse contains the enormous amount of research into issues concerning coastal and ocean change as described or reviewed in the many hundreds of scientific journals, conference proceedings, and institutional documents published monthly. A listing of pertinent articles from some of this published literature is presented. Abstracts for various citations are also included.
Links and NGOs


Sea cage fish farming: an evaluation of environmental and public health aspects
The Five fundamental flaws of sea cage fish farming:


1) Wastes:
Open sea cage fish farming, be it tuna, sea bass or sea bream farming in the Mediterranean or salmon farming in Scotland, Ireland and Norway, discharges untreated wastes directly into the sea.

2) Escapes:
EC-sponsored research has highlighted the negative impacts of farmed salmon escapees on wild fish in Norwegian, Irish, Scottish and Spanish rivers (McGinnity et al: 1997, Clifford et al: 1998, Fleming and Einum: 1997, EC: 2000e, EC: 2000h, Fleming et al: 2000, McGinnity et al: 2002, Scottish Executive: 2002b). AQUAWILD, for example, aims “to assess genetic and environmental impacts of cultured fish on wild conspecifics at various life stages through competition and interbreeding” (EC: 2002h). A forthcoming scientific paper by researchers at the Queens University Belfast will reveal the results of a 10-year Irish investigation (funded by the EC) into the impact of escaped farmed salmon on wild fish (McDowell: 2002). Preliminary results suggest that farmed fish escapes and hatchery-reared fish are having such an impact that wild salmon stocks are precipitating into an “extinction vortex” (McGinnity et al: 2002). As well as spreading parasites and ‘genetic pollution’ via interbreeding and hybridisation, escapees have the capacity to spread infectious diseases to wild fish populations. ). The global problem of salmon escapes is so evident that Norwegian farmed salmon are now resident in the Faroes (Hansen et al: 1999) and salmon that escaped from an Irish farm in August 2001 were caught in English, Scottish and Welsh rivers (Milner and Evans: 2002). Moving cages further offshore will only increase the risk of escapes. Closed containment systems are the only safe solution. Yet given the sheer number of escaped farmed salmon and the negative impact of hatcheries on wild salmon (McGinnity et al: 2002)

3) Diseases and parasites:
According to the EC “infectious disease poses the biggest single threat to aquaculture” (EC: 2002f). Infectious Pancreatic Necrosis (IPN) and Infectious Salmon Anaemia (ISA) are the latest in a long line of infectious diseases such as furunculosis to decimate the salmon farming industry. New diseases are appearing all the time. EC-sponsored research is now addressing the emerging problems of salmon pancreas disease (SPD) and sleeping disease (SD) in farmed salmon (EC: 2002d). Another EC-sponsored project, SALIMPACT, is investigating the impact of disease transmitted through the contact between farmed and wild fish (EC: 2002h). GM technology has also been applied to study ways of combating disease and conferring disease resistance (EC: 2002l). The spread of diseases and parasites, as in battery chicken farming, is a function of overstocking and intensive production (Paone: 2000b). It is therefore inevitable that new diseases on intensive fish farms will emerge (Meikle: 2002). A report by Compassion in World Farming published in January 2002 calculated that each farmed salmon had the equivalent water space as a single bath-tub of water and called for a halving of stocking densities (Lymberry: 2002). A forthcoming report by the Council of Europe on fish welfare may address the issue of stocking densities on fish farms (EC: 2002c). In the meantime, however, sea cage fish farms will continue to act as reservoirs for infectious diseases and parasitic infestations.

The scientific evidence linking sea lice infestation on wild salmon and sea trout with proximity to salmon farms has now been proved beyond reasonable doubt (Edwards: 1998, Butler and Watt: 2002, Bjorn and Finstadt: 2002, Gargan and Tully: 2002, Holst et al: 2002). As the EC explains:

“These parasites proliferate on farmed salmon, and the young wild fish of migratory species (mainly of sea trout) could be heavily infected during their estuarine movements. The reduction of wild salmonids abundance is also linked to other factors but there is more and more scientific evidence establishing a direct link between the number of lice-infested wild fish and the presence of cages in the same estuary” (EC: 2002c, p9)

4) Chemicals:
Intensive finfish farmers, unlike shellfish farmers, are reliant upon a suite of chemicals to control diseases and parasites (Schnick et al: 1997, Alderman: 1999, Roth: 2000, Costello: 2001). Reports by the World Health Organisation and GESAMP have highlighted the environmental and public health threats of chemical use on fish farms (GESAMP: 1997, WHO: 1999). However, despite a reduction in the use of antibiotics and organophosphates in salmon farming (OSPAR: 1994) the use of synthetic pyrethroids, artificial colorants, antifoulants, antiparasitics and other ‘marine pollutants’ warrants serious concern (Staniford: 2002a). The cocktail of toxic chemicals used on salmon farms, in particular, jeopardises not only the marine environment but also the safety of workers (Douglas: 1995, GESAMP: 1997, Kelleher et al: 1998, Connolly: 2002).). In Danish trout farms, for example, the abuse of antibiotics has raised consumer and environmental concerns (Lutzhoft et al: 1999). Chemicals used on salmon farms include carcinogens, mutagens and a myriad of marine pollutants (Staniford: 2002b). Since many chemical ‘treatments’ are designed to kill sea lice (which are crustacea) shellfish farmers have raised concerns in relation to the negative effects other shellfish such as lobsters, crabs, mussels, oysters and scallops (Blythman: 2001, Ross and Holme: 2001). Chemicals such as DDT, dieldrin, chlordane, hexachloro-benzene, PCBs, toxaphene and dioxins, which all bioaccumulate via the fish feed, have been found both under salmon cages and in the flesh of farmed salmon (Hellou: 2002a, 2002b, Pirie: 2001, Cameron: 2002c, PRC: 2002). Anti-fouling paints containing TBT, copper and zinc have also been found under salmon cages (Davies et al: 1998, SEPA: 1998b). The World Health Organisation concedes that “veterinary drug residues or heavy metals may accumulate in aquaculture products at levels of concern for public health” (WHO: 1999). There is an alarming information gap:

“Information is needed on the transfer of feed contaminants to edible fish tissues and any implications of this for human health…As certain pesticides required in aquaculture can pose food safety hazards, more information is needed on the types of compounds used. Studies should be conducted to determine whether the use of pesticides can result in residue levels in fish tissue that are potentially harmful to human health” (WHO: 1999, pp 47-49)
5) Feed/Food:
Intensive sea cage fish farming’s dependence upon a fast diminishing and increasingly contaminated resource namely fish meal and fish oil threatens to blow sea cage fish farming out of the water altogether. The fifth fundamental flaw the unresolved and unsolvable feed/food issue - will ultimately be the final fatal flaw for sea cage fish farming. Aquaculture’s appetite for fish meal and fish oil is rapidly impacting on the capture fisheries sector (Tacon: 1994, Naylor et al: 1998, Naylor et al: 2000, Pauly et al: 2002). Over 3 tonnes of wild fish are required to produce one tonne of farmed salmon, for example (for other marine fish this rises to over 5 tonnes) (Naylor et al: 2000) leading to a net loss on marine resources and a drain on the capture sector. Salmon farming is running on empty - it is literally running out of fuel. Such is aquaculture’s insatiable growth that it already uses up ca. 70% of the world’s fish oil and ca. 35% of the world’s fish meal (Tacon and Forster: 2001, Tacon and Barg: 2001). In June 2001 the Research Council of Norway predicted that “within three to eight years” the lack of marine oil raw materials could hinder the growth of Norwegian salmon farming (Hjellestad: 2001a). A staggering 80 per cent of all fish caught by Norwegian trawlers is already used to provide feed for the fish farming industry and the International Fish Meal and Fish Oil Manufacturers Association (IFOMA) predict that aquaculture may consume 90 per cent of the world’s fish oil by 2010 (Pike and Barlow: 1999). Moreover:

“It would be a mistake to abandon the significance of fish oils as subservient to that of fish meal. There is a risk that quality fish oils could prove to be the more finite commodity in the next decade as aquaculture is projected to use 87% of world supply in 2010. This has obvious implications for the salmon sector and others where much of the dietary energy is provided as oil at present” (MacAllister and Partners: 1999, p39) The farming of fish such as salmon so high up the food chain is an extremely efficient way of concentrating contaminants. Some fish feed is so contaminated it should be disposed of as hazardous goods rather than fed to farmed fish destined for human consumption. Yet, fish feed companies have known about PCB contamination, for example, for over 20 years (Mac: 1979). Recent scientific research has revealed contamination in Canadian, Norwegian, Scottish and Irish farmed salmon (MAFF: 1999, Easton et al: 2002, FSAI: 2002, Jacobs et al: 2000, Jacobs et al: 2002a, 2002b, PRC: 2002). Dioxin contamination of fishery products is now well known with DDT, chlordane and hexachlorobenzene recently detected in 97% of ‘fresh’ (i.e. farmed) salmon on sale in the UK (the only negative sample was the one wild fresh salmon sample) (Cameron: 2002c, PRC: 2002). As well as containing more PCBs, dioxins and DDT, farmed fish contain more fat and less of the healthy Omega 3 fish oils (Vliet and Katan: 1990, Cronin et al: 1991, George and Bhopal: 1995, Paone: 2000a). According to the Food and Drug Administration in the US, farmed salmon, for example, are four times fatter than wild salmon (Paone: 2000a).
The notion that eating farmed salmon is universally good for public health is no more than a sales gimmick sold by supermarkets intent on boosting profits and Government agencies who have invested a great deal of money in bankrolling salmon farming at the expense of wild fisheries.
The artificial colouring Canthaxanthin (E161g), due to health concerns over its links with eye defects in children, is now the subject of a EU-wide consultation with a view to a four-fold reduction in salmon and trout diets (EC: 2002a). Canthaxanthin use is so widespread that it has been detected both in salmon farm escapees (Poole et al: 2000), their offspring (Saegrov et al: 1997) and on the sabed (Girling: 2001). In the UK, Scottish Quality Salmon have been actively lobbying against any reduction whilst some supermarkets are calling for a complete ban. In the US, the law requires Canthaxanthin to be labelled on the packaging (Cherry: 2002).

http://www.mindfully.org/Water/Fish-Farms-SR15.htm
http://www.cbc.ca/consumers/market/files/food/salmon/facts.html
http://www.salmonfarmmonitor.org/documents/questions.html#question3

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