Trout, by The Wild Center
GM Salmon Breed with Trout, Create Superfish: Study
June 16, 2013 | Gaia Health Blog | Heidi Stevenson
Genetically modified salmon are more dangerous than anyone
had realized. It’s now proven beyond doubt that they can interbreed with
not only wild salmon, but also trout. Worse, the result is offspring
that grow even faster than their parents and can outcompete them by a
huge amount.
Genetically modified salmon, which the FDA is on the verge of
approving, pose an unprecedented risk. As demonstrated by a new study,
not only are these supposedly sterile fish capable of breeding, they can
produce offspring with trout. The study’s authors wrote:
Through experimental crosses, we demonstrate transmission
of a growth hormone transgene via hybridization between a candidate for
commercial aquaculture production, GM Atlantic salmon (Salmo salar)
and closely related wild brown trout (Salmo trutta). Transgenic hybrids
were viable and grew more rapidly than transgenic salmon and other
non-transgenic crosses in hatchery-like conditions. In stream mesocosms
designed to more closely emulate natural conditions, transgenic hybrids
appeared to express competitive dominance and suppressed the growth of
transgenic and non-transgenic (wild-type) salmon by 82 and 54 per cent,
respectively.[1]
Not only are these supposedly sterile frankenfish capable of
breeding, but they can breed with trout to produce offspring that grow
even faster than the GM salmon and out-compete natural salmon by an
immense margin!
AquaBounty, the company that hopes to sell GM salmon, has claimed
that these fish are no risk to the environment. They’ve said that the
fish are sterile. That’s obviously untrue, and has been known since the
early days of their development. Even if most of these frankenfish were
sterile, a small percentage would still add up to millions of viable
fish.
Their claim that there’s no risk of escaping into the wild becaue
they keep them contained in locations far from oceans is also specious.
First, there’s the fact that rivers lead to oceans. Second, they hope to
sell these fish, or possibly the roe, to others—and there aren’t even
any proposed regulations to limit where they can go. Thus, there is
virtually nothing standing in the way of the release of GM salmon into
the wild, wth the resultant devastation of the ecological system.
The author of the study, Krista B. Oke, tried to soften her results by saying:
I think currently what AquaBounty is proposing to do, it
seems that their safeguards will be sufficient. You know, adequately
prevent these kinds of risks. Where I think our work is more important
would be if those regulations were weakened, which again I don’t know if
anyone’s proposing to do right now, and AquaBounty certainly isn’t
proposing to do, at the moment.
Perhaps that was necessary to get her study published—but what
regulations is she referring to? Claims by AquaBounty do not equate with
regulations!
In point of fact, as reported in the journal Nature[4]:
Following FDA approval, AquaBounty hopes to sell its
salmon eggs to farmers and expand to markets in Argentina, Canada, Chile
and China. To sell AquAdvantage fish in the United States, each farm
would require separate FDA approval, but because the food safety of the
fish has already been vetted, the approval process would require only an
environmental evaluation
AquaBounty is in a precarious financial position. Public outcry
against their frankenfish has resulted in approval delays, which are
threatening their ability to survive. If their frankenfish gains the
FDA’s approval, the company will have no choice but to market the eggs
to other countries. The potential US income from the fish is simply not
enough to keep the company solvent.
Therefore, there can be little question that, if these genetically
engineered salmon are approved, they can be expected to escape into the
wild. When they do, they’ll interbreed wtih wild trout, creating a
hybrid that will outcompete both the native trout and salmon.
Ultimately, the result could be an ecological crash.
Wonderful things can be done with science—but it can also be used to
produce horrors. Witness Fukushima and the atomic bomb. Witness the
utter destruction of Iraq and the killing of civilians with drones.
Witness the universal surveillance of virtually everyone by the United
States. Witness the destruction of soil and food quality by
Agribusiness. Witness the horrors of factory farming. Just because it
can be done does not mean it should. AquaBounty’s Frankenfish is one of
those things. Our life support, Gaia, simply cannot handle more
devastation.
Sources:
Hybridization between genetically modified Atlantic salmon and wild brown trout reveals novel ecological interactions; Proceedings of the Royal Society; Krista B. Oke, Peter A. H. Westley, Darek T. R. Moreau, and Ian A. Fleming; doi: 10.1098/rspb.2013.1047
GM salmon can breed with trout and harm ecosystem, warn scientists
GM salmon in wild might produce bold hybrids
Transgenic salmon nears approval