Israeli Prof. Yonathan Zohar believes he has the answer to wide spread over fishing and the availability of fresh fish inland. He has developed self contained land based fish farms designed for the urban environment. His design came as a result of the reports of the overfishing of our seas and rivers and the world’s overconsumption of fish. According to Zohar his tanks work with the help of microbiology that allow the fish to live in symbiosis with microbes that take care of the waste produced by the fish.

According to Israeli Professor Yonathan Zohar part of the solid waste that is created by uneaten food or microbial byproducts is converted into methane and used as biofuel.

Zohar claims that these tanks, about the size of a child’s swimming pool, can be utilized anywhere in the world and in any environment. They can be put in a basement, backyard or roof even.

This could give an entirely new dimension to local food.

Although the idea and prototype seem sound, caring for a shoal of salmon is quite different than caring for a marine aquarium. At the moment Zohar is experimenting with seabream but it is doubtful whether this could be the answer to our tuna and cod problems.