F ISH S TORY
description
Transcript of F ISH S TORY
![Page 1: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/1.jpg)
FISH STORY
Kate Stoeckle and Louisa Strauss
Johns Hopkins UniversityPresented at AAAS Annual Meeting, San Diego, CA, February 19, 2010
![Page 2: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/2.jpg)
Trinity School, NYCMarch 200711th grade
Can we identify sushi with
DNA barcoding?
![Page 3: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/3.jpg)
What we did
1. Shop (and eat) 2. Sample
3. Document
![Page 4: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/4.jpg)
4. Sequence
5. Match to database
![Page 5: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/5.jpg)
What we found
-One-quarter of samples mislabeled, all as more expensive or more desirable fish-Mislabeling in 6/10 grocery stores/ fish markets and 2/3 restaurants
![Page 6: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/6.jpg)
For example
![Page 7: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/7.jpg)
• Lavender Jobfish, Slender Pinjalo (SE Asia), Acadian Redfish (N Atlantic), Nile Perch (Africa) sold as Red Snapper (Caribbean)
• Caribbean Spotted Goatfish sold as “Mediterranean Red Mullet”
• White Bass (farmed freshwater fish) sold as “Sea Bass”
• Smelt Roe sold as “Flying Fish Roe”
Diverse items mislabeled
![Page 8: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/8.jpg)
DNA ID: Nile Perch
Range map: FishBase
FishBase: John Casselman
For exampleLabel: Red Snapper
![Page 9: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/9.jpg)
Our results in scientific report
What we wrote
![Page 10: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/10.jpg)
Page 1
Our study attracts interest
![Page 11: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/11.jpg)
Kate Stoeckle andLouisa Strauss
August 22, 2008
![Page 12: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/12.jpg)
CBS Early Show
>380 tv, radio, print, and online media reports in 10 languages and 34 countries
Press named it “Sushi-gate”
Korean Daily News
![Page 13: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/13.jpg)
Our study inspired othersA DNA Barcoding Analysis of Commercially-
Sold FishThomas Jefferson High School, Alexandria, VA
June 2009
![Page 14: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/14.jpg)
DNA Barcoding + students =
• Learn science• Make discoveries• Have fun
![Page 15: F ISH S TORY](https://reader036.fdocuments.us/reader036/viewer/2022062501/56816756550346895ddc1010/html5/thumbnails/15.jpg)
Acknowledgments