Today, I came across a book I read last summer, written by Paul Greenberg, called Four Fish. It talks about the dwindling supplies of ocean fish in the wild, and the current state of aquaculture. Out of curiosity, I decided to take another look at the current tuna farming activities.
It appears researchers at Kinki University in Japan have made some recent progress in a closed-loop cycle, where juveniles of bluefin tuna are spawn in captivity and can be successfully raised to maturity. But this is a project in its infancy. To date, Kinki does not need to take fish from the sea.
Yonathan Zohar and his team of scientists at the University of Maryland Baltimore County’s Institute of Marine and Environmental Technology are making their first attempt in North America.