Photo: Ocean Farm Technologies.
Aquaculture has been the world’s fastest-growing food sector for several decades, and some argue it is the only feasible answer to the predicament of trying to feed a growing global population that is expected to reach 9 billion by 2050.
And they have a point. Since the 1970s, roughly half of the world’s fish and seafood harvested for human consumption has been farmed, and in 2011, aquaculture exceeded global beef production for the first time in history.
But how can it be done without introducing pathogens (as well has hormones and potential toxins, like antibiotics) and depleting the ocean of precious oxygen and nutrients?
While there appears to be plenty of space in the ocean for the industry to expand, many, if not most of these farms lie in lakes and near-coastal waterways where, if not properly managed, they pose a serious threat to the surrounding environment.