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:8/23/2017)... , Aug. 23, 2017  The general public,s help is being ... microbiome—the bacteria that live in and on the human body –and are ... The Microbiome ... the human microbiome, starting with the gut. The project's goal is to ... Photo credit: IBM ...
(Date:7/20/2017)... Delta (NYSE: DAL ) customers now can use ... Reagan Washington National Airport (DCA). ... Delta launches biometrics to board aircraft at Reagan Washington ... Delta,s biometric boarding pass experience that ... integrated into the boarding process to allow eligible Delta SkyMiles Members who ...
(Date:6/23/2017)... and ITHACA, N.Y. , June 23, ... University, a leader in dairy research, today announced a ... to help reduce the chances that the global milk ... of this dairy project, Cornell University has become the ... the Food Supply Chain, a food safety initiative that ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 2017 , ... Disappearing forests and increased emissions are the main causes of ... year. Especially those living in larger cities are affected by air pollution related diseases. ... most pollution-affected countries globally - decided to take action. , “I knew I had ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... Science Center’s FirstHand program has won a US2020 STEM Mentoring Award. Representatives of ... award for Excellence in Volunteer Experience from US2020. , US2020’s mission is to ...
(Date:10/10/2017)... ... 10, 2017 , ... The Pittcon Program Committee is pleased ... scientists who have made outstanding contributions to analytical chemistry and applied spectroscopy. Each ... leading conference and exposition for laboratory science, which will be held February 26-March ...
(Date:10/9/2017)... (PRWEB) , ... October 09, ... ... published on October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s ... the gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using ...
Breaking Biology Technology: