the future of bluefin tuna - sushi ran
TRANSCRIPT
![Page 1: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/1.jpg)
The future of Bluefin Tuna
Introducing the closed cycle, farm raised Bluefin tuna
From Kindai (Kinki University), Japan
By Yuji Haraguchi
True World Foods Marketing
Photo by Kinki University, Japan
![Page 2: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/2.jpg)
Tuna Family
Bluefin Tuna
Southern Bluefin Tuna
Bigeye Tuna
Yellowfin Tuna
Albacore Tuna
Picture-Japan Bonito and Tuna Fisheries Association
![Page 3: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/3.jpg)
Amount of Wild Caught Tuna Worldwide
(10,000 Ton)
Source - Ministry of Agriculture, Forestry, and Fisheries of Japan
Beginning of sushi boom in the U.S.
![Page 4: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/4.jpg)
Bluefin Tuna“Black Diamond” from the ocean
• The largest and most expensive kind of tuna.
• It grows as big as 1000LB in 30 years.
• Its fat is known as “Toro,” which becomes the most valuable piece of sushi.
• One Bluefin tuna sold at the first tuna auction at the Tsukiji fish market this year for 16 milion yen ($180,000)
Photos by Yuji Haraguchi 2008
![Page 5: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/5.jpg)
Saving the Bluefin Tuna
• Tunas have been overfished due to the rapid growth of the global Sushi market and as well as other markets.
• Tuna fisheries worldwide generate billions of dollars annually, making them among the most valuable fisheries on Earth. The growing demand for Bluefin tunas increasingly is a cause for concern throughout the global oceans.
• The restrictions are becoming more strict every year, especially on Bluefin tuna.
• The fishing has been strictly monitored by the Tuna Regional Fisheries Management Organizations.
Tuna Regional Fisheries Management Organization
ICCAT - The International Commission for the Conservation of Atlantic Tunas IOTC - Indian Ocean Tuna Commission IATTC - Inter-American Tropical Tuna CommissionWCPFC - Western and Central Pacific Fisheries Commission CCSBT - Commission for the Conservation of Southern Bluefin Tuna
(Monterey Bay Aquarium)
![Page 6: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/6.jpg)
The Conventionally “Farm-Raised” Bluefin Tuna(Mostly done in Japan, Mexico, Mediterranean, and Australia)
Purse Seining Pen
Pictures by Monterey Bay Aquarium
Catch a school of young wild Bluefin tunas (20-30LB) and bring them to a pen.
Feed the tunas with sardines and etc for about 3 years. Then, release them to the market.
It is “Farm raised,” but Not sustainable as
it depends only on the wild tunas for resource.
![Page 7: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/7.jpg)
The Kindai Farm-Raised Bluefin Tuna(A joint project with Japanese government since 1970)
Born in --- Kinki University (Kindai), Wakayama, JapanRaised in --- Amakusa, Kagoshima, JapanDistributed by --- True World Foods
![Page 8: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/8.jpg)
Source – Kinki University, Japan
- CLOSED CYCLE FARMING -
![Page 9: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/9.jpg)
Challenges of farming tuna
• Closed cycle farming is a common practice for other kinds of fishes such as salmon and stripped bass.
• However, because tuna cannot stop swimming or they will die, the closed cycle farming presents greater challenges.
• In 2002, after 32 years of R&D and over $50 Million spent, Kinki University has succeeded in spawning Bluefin tuna eggs and kept its cycle.
Photos by Burimy Japan
![Page 10: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/10.jpg)
Sustainable Feed(All the fishes are sourced only in Japan)
O Nago (Sand Eel) Sardine Mackerel
Photos by Burimy Japan
![Page 11: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/11.jpg)
Farming environmentAmakusa City, Kagoshima, Japan
Photos by Burimy Japan
![Page 12: The future of Bluefin Tuna - Sushi Ran](https://reader030.vdocuments.us/reader030/viewer/2022012618/619f8dc76826cf681514b849/html5/thumbnails/12.jpg)
Specification
• Tunas are shipped when they become about 60-80LB/Whole. (3 years of feeding)
• 10-15LB per loin (Belly and Back)
• Otoro and Chutoro from Belly loins
• Chutoro and Red meat from Back loins
• Head On (Usually, tunas are not shipped with heads on.)
Photos by Burimy Japan and Yuji Haraguchi