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["Toni Hawryluk" <tonihawr AT msn.com>]

http://famulus.msnbc.com/famulusintl/ap11-16-104538.asp?reg=europe&vts=111620041049<http://famulus.msnbc.com/famulusintl/ap11-16-104538.asp?reg=europe&vts=111620041049>

 

Scientists warn of undetected, unmeasured toxins in world's fish

ASSOCIATED PRESS

SETE, France, Nov. 16 - Each day at 4 p.m., the trawlers come back, alive 
with giant bass, mackerel and squirming eels, at the end of a food chain that 
links family dinner tables to poisons in the sea.

 

Besides mercury which can damage the brains of fetuses and young children and 
can affect healthy adults, there are PCBs, dioxins and flame retardants with 
unknown long-term effects. <>


It is the same from ancient Mediterranean towns like Sete to big city docks 
in Asia, America's Gulf ports, or harbors in seemingly pristine Nordic 
waters. Industrial waste permeates every ocean. 


Although rich in omega-3 fatty acids vital to the heart and brain, many fish 
contain toxins that build up over time in the human body. 


And as this paradox worsens, scientists express alarm at what they call 
inadequate government warnings, lax attitudes toward fishing industries, and 
insufficient data to assess the risks. 


The problem is that authorities are caught between wanting to inform the 
public while not damaging consumer confidence in a healthy food source, says 
Sandrine Blanchemanche, a sociologist with France's prestigious National 
Institute for Agronomic Studies. 


''People overreact to these things, so you have to be careful,'' she said. 
''You don't want large numbers giving up the benefits of fish while you 
damage the whole fishing sector for no reason.'' 


But marine biologists, toxicologists and physicians interviewed by The 
Associated Press on three continents share an all but unanimous view: better 
public knowledge is essential. 


Jane Hightower, a San Francisco internist whose 2002 study of mercury in her 
patients brought the issue to wide public attention, said she is still 
uncovering what she calls shocking new evidence. 


''We are just starting to realize as physicians the effects of this chemical 
soup we live in,'' she told The AP. ''We really have to ask, why are we 
poisoning ourselves?'' 


She called some areas especially troubling because of contamination trapped 
by ocean currents. ''The Mediterranean is a toilet that no one has bothered 
to flush,'' Hightower said. 


The crisis transcends borders. Three-quarters of fish eaten in America and 
Europe are imported, often from countries with no controls. Authorities on 
both sides of the Atlantic make only minimal spot checks. 


''Pollution is a worldwide problem, and our fish comes from around the 
world,'' said Kate Mahaffey, toxins expert at the U.S. Environmental 
Protection Agency. ''No one is immune.'' 


With contaminants in fish, she warned, ''there is a very narrow range between 
levels with no effects, subtle effects and severe effects.'' 


At its extreme, Mahaffey said, mercury poisoning causes an illness similar to 
cerebral palsy. 


''As we find out more and more about mercury, we see health effects that have 
not been taken into account,'' she said. Studies continue into the impact of 
PCBs and dioxins, she added. ''We just don't know.'' 


Specialists accuse commercial fishing interests of minimizing the threat and 
using their political clout to oppose broader studies or warning labels. 


Industry associations routinely reject such charges. But most of the world's 
catch comes from independent small fishermen and trawlers which easily evade 
international control. 


''Information is scarce, and there is little interest in getting more,'' said 
Sergi Tudela, a Worldwide Fund for Wildlife (WWF) fisheries expert based in 
Barcelona, Spain. 


Governments tend to be more preoccupied with protecting national quotas 
against efforts to curb catches and preserve fish stocks, and are reluctant 
to spend the large sums necessary to test adequate samples in open waters. 


Even when data is convincing, experts say, action falls short. Despite the 
clear risk from such long-lived large fish as swordfish, shark and types of 
tuna, public warnings are often not spelled out. 


Smaller fish rich in fat can also be hazardous, although they are seldom 
flagged. Norwegian researchers say Baltic Sea herring carry up to 10 times as 
much contaminant as salmon. A growing trend toward fish-farming adds new 
dangers, according to the specialists. Some European operators still feed 
Baltic herring and other suspect cheap fish to farmed salmon, they say. 


Most experts laud the work of the EPA's Mahaffey who in April published a 
study of 1,709 American women. She found blood mercury concentrations were 
seven times higher among women who ate at least nine fish or shellfish meals 
a month than among those who ate no seafood at all. 


Mahaffey calculated that more than 300,000 babies born each year in the 
United States ''may have been exposed in utero'' to methyl mercury 
concentrations higher than those considered to be without increased risk of 
adverse neurodevelopmental effects.'' 


Hightower likened the fight to post alerts at fish counters and on some 
canned tuna to the controversy over warning labels on tobacco. 


''These conflict of interest issues have been with us forever,'' she said. 
''It always comes down to science versus industry. People have a right to 
know and the right to ignore. That is informed consent.'' 


California's Proposition 65 enforces labeling of potential risks, but 
warnings are less clear in other states and absent entirely in most other 
countries. 


The European Union offers guidelines to consumers on a complex Web site, but 
policy is left to its 25 member states. Britain and France, among others, set 
recommendations. But none posts warnings. 


There's far too little data on which to base advisories, said Daniel Cossa, 
senior marine scientist at Ifremer, the official French agency for oceanic 
studies. 


In a 1994 paper, he demonstrated that methyl mercury has permeated the 
world's oceans and that 5 percent of it ended up in fish. 


About half of the mercury occurs naturally, he said. But the rest, along with 
PCBs and dioxins, comes from factories and other dumping. He urged 
governments to keep a closer watch. 


A decade later, Cossa said in an interview that very little monitoring is 
done. ''It is a matter of resources,'' he said. ''We don't have them.'' 


Last April, the U.S. Food and Drug Administration finally coordinated its 
warnings on fish with more stringent EPA guidelines. But Vas Aposhian, a 
University of Arizona toxicologist, quit the FDA's advisory panel, charging 
that its advisories fell short of the risk and that not enough controls were 
in place. 


''The FDA is falling down on its job of protecting young women and 
children,'' he said from Tucson. He said FDA inspectors spot-check only a 
tiny sampling of fish imported into the United States. 


Twenty percent of seafood consumed in America is canned tuna, a cheap source 
of protein, Aposhian said. He said some panel members wanted albacore tuna on 
the list of fish to avoid but industry pressure blocked them. Instead, the 
FDA sanctioned six ounces a week of albacore. 


After the FDA announced its new guidelines, Richard Wiles of the 
Environmental Working Group, an advocacy and investigative organization, told 
the San Francisco Chronicle: ''If American women follow the FDA's advice and 
eat a can of albacore tuna a week, a bad situation will be made far, far 
worse.'' 


In Europe, other specialists offered a similar analysis, noting that a salade 
nicoise or a tuna sandwich were common campus fare.


David Acheson, FDA director of food safety, told the AP, ''We have to make 
decisions with data and resources we have, and we do a lot.'' But, he added, 
''As a scientist, I would love to have more data.'' 


The FDA warns consumers off shark, swordfish, king mackerel and tilefish. It 
advises no more than 12 ounces a week, or two average meals, of fish low in 
mercury, including salmon, light canned tuna, pollock (in fish sticks) and 
shrimp. 


In Brussels, EU spokeswoman Catherine Bunyan echoed Acheson's remarks. 
Although authorities regard fish safety as vital and checks are made, she 
said, all food must be monitored with limited resources. 


She noted recent warnings by the EU's Rapid Alert System, including cadmium 
found in swordfish from Indonesia and high levels of mercury in swordfish 
from Ghana. 


Environmentalists argue that rather than demonstrating a security network, 
such cases suggest many more tainted fish enter the EU undetected. 


Dangerous pockets of pollution go unnoticed, said WWF's Marek Esmark in 
Norway. Fish is too important to be cut from diets, she said, but consumers 
must know their risks. 


''Eat your fish,'' she concluded, ''but insist on labeling.'' 


WWF's Sergi Tudela wishes the industry would help scientists restore 
confidence in their catch, but said small fleets don't take the long view. 
''It'd be nice if they checked for contaminants, but that's not the real 
world. That's science fiction.'' 


In Sete, the conflicts are apparent along the ancient docks. Trawler crews 
rush to pile their fish into bins for ''la criee,'' a colorful old-style fish 
auction. 


''Nothing is wrong with our fish - it's all perfectly healthy,'' said Tony 
Courtesol, skipper of the 170-ton Antoine Rachel, summarizing the view of a 
dozen fishermen interviewed. 


But Claude Alzieu, a specialist in pollutants at Sete's Ifremer station, took 
a different view. 


''I'm ready to believe what the fishermen say,'' he put it, ''but we should 
really know for sure. Even if it were sure, it is normal to keep checking. 
The truth is we just don't have enough evidence.'' 



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