Navigation Links
Eco-labeled seafood is not always what it seems
Date:8/22/2011

When you buy what looks to be a nice piece of certified sustainable fish at the supermarket, you'd like to think that's exactly what you're getting. Unfortunately, things aren't always what they seem, according to researchers who have analyzed DNA isolated from store-bought, eco-labeled Chilean sea bass and report their findings in the August 23 issue of Current Biology, a Cell Press publication.

"We found that, for fish purchased in US groceries, not all those labeled as MSC-certified Chilean sea bass are actually MSC-certified Chilean sea bass," said Peter Marko of Clemson University. MSC stands for the Marine Stewardship Council, an international organization dedicated to recognizing and rewarding sustainable fishing.

In the case of Chilean sea bass, MSC certification labels should indicate that a fish was harvested from the only recognized sustainable Chilean sea bass fishery, a population living in waters surrounding the sub-Antarctic island of South Georgia and a nearby plateau called Shag Rocks, Marko explained.

In fact, some of the fish that his team purchased turned out to be other species entirely. Of those that were Chilean sea bass, some 15 percent were genetically distinct from fish collected previously from the certified fishery. One sample carried a haplotype (defined as a combination of genetic variants in cellular components known as mitochondria) that has only been found on the other side of the globe, in the southern Indian Ocean. Other haplotypes that the researchers uncovered amongst fish marked with an MSC-certified label commonly trace to South American waters, and still others had never been recorded before in previous genetic surveys.

"The simplest explanation for this result is that other species plus Chilean sea bass from other, uncertified fisheries are being added to the supply chain for MSC-certified Chilean sea bass," Marko said. Although unexpected, "the results are not exactly shocking," given widespread mislabeling in the seafood industry and potential profits to be made.

It isn't clear who is responsible for the misleading labels, given that fish pass through many hands from the time they are caught to the time they are purchased.

"There is no question that organizations like the Marine Stewardship Council are trying their best to guide consumers to sustainably harvested seafood, but it is currently difficult to guarantee the geographic origins of fish," Marko said. He added that the MSC has been working on ways to confirm fishes' origins, and the new study may serve as a model for how to go about that.

The only thing it seems that concerned consumers can really do for now is keep Chilean sea bass off their dinner menus. "At a grocery or on a plate in a restaurant, Chilean sea bass from South Georgia looks the same as Chilean sea bass from other parts of the world," Marko said.


'/>"/>

Contact: Lisa Lyons
elyons@cell.com
617-386-2121
Cell Press
Source:Eurekalert

Related biology news :

1. Safety testing on Gulf seafood
2. Madagascar marine resources plundered by international seafood markets
3. Seafood stewardship questionable: UBC-Scripps experts
4. The grass is always greener
5. Fat and healthy? York U study finds slim isnt always superior
6. Is March Madness always the same?
7. Veterinarian says natural foods not always best for pets
8. Organic pesticides not always greener choice, study finds
9. Are invasives bad? Not always, say Brown researchers
10. University of Minnesota scientist finds that big plant seeds dont always beat out small seeds
11. High sensitivity to stress isnt always bad for children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/2/2016)... The Department of Transport Management (DOTM) of ... project, for the , Supply and Delivery of ... Infrastructure , to Decatur , ... Management Solutions. Numerous renowned international vendors participated in the tendering ... selected for the most compliant and innovative solution. The contract ...
(Date:5/24/2016)... , May 24, 2016 Ampronix facilitates superior patient care by providing unparalleled ... medical LCD display is the latest premium product recently added to the range of ... ... ... Sony 3d Imaging- LCD Medical Display- Ampronix News ...
(Date:5/9/2016)... May 9, 2016 Elevay is ... to expanding freedom for high net worth professionals seeking ... today,s globally connected world, there is still no substitute ... ever duplicate sealing your deal with a firm handshake. ... by taking advantage of citizenship via investment programs like ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... --  EpiBiome , a precision microbiome engineering company, today ... from Silicon Valley Bank (SVB). The financing will allow ... drug development efforts, as well as purchase additional lab ... been an incredible strategic partner to us – one ... provide," said Dr. Aeron Tynes Hammack , EpiBiome,s ...
(Date:6/23/2016)... ... ... STACS DNA Inc., the sample tracking software company, today announced that Dr. Hays ... DNA as a Field Application Specialist. , “I am thrilled that Dr. Young ... DNA. “In further expanding our capacity as a scientific integrator, Hays brings a wealth ...
(Date:6/23/2016)... Apellis Pharmaceuticals, Inc. today announced positive ... its complement C3 inhibitor, APL-2. The trials were ... studies designed to assess the safety, tolerability, pharmacokinetics ... healthy adult volunteers. Forty subjects were ... dose (ranging from 45 to 1,440mg) or repeated ...
(Date:6/23/2016)... 2016 Andrew D ... http://doi.org/10.17925/OHR.2016.12.01.22 Published recently in ... from touchONCOLOGY, Andrew D Zelenetz , discusses ... care is placing an increasing burden on healthcare ... therapies. With the patents on many biologics expiring, ...
Breaking Biology Technology: