Technology to the rescue?

We keep seeing depressing reports of big, iconic fish species that seem to be dwindling in the wild. Then, on the heels of those reports, stories about how technology will come to the rescue. In the case of fisheries, the technology is usually a hatchery.

Here's a couple of typical stories: the first is about over-fishing of Mediterranean bluefin tuna, and the second is about figuring out how to farm a huge tropical river fish from the Amazon, the pirarucu. Put them together and you get food for thought.