Greener Tuna? ~ Closed-Loop Fish Farming...

Given Paul Greenberg's piece in the NYTimes this weekend on Tuna's End (with beautiful photos by Kenji Aoki), it is worth thinking about alternative pathways. So see here Kyung Lah's CNN report on 'Ranching' tuna the eco-friendly way, about Kinki University's Fish Nursery Center where general manager Tokihiko Okada and colleagues operate and refine a...

"...closed farming system, which means that the bluefin tuna raised in their ocean tanks have never been in the wild. They're produced from hatched eggs, raised, and then fished for consumption. It's one of the few programs on the globe to successfully raise the delicate bluefin tuna. For three generations, Okada has helped successfully raise bluefin tuna for the world's gourmet restaurants."

Some still consider this kind of hatchling-to-harvest ranching "unsustainable", however, because smaller wildfish are caught to feed the voracious tuna, but it's a major step in the right direction...