Fish Farms Offer a Test Ground for Acidifying Oceans
British scientists have identified a paradox in research on the impact of extra carbon dioxide on the world’s oceans.
There is no doubt that along with global warming the oceans are becoming more acidic, and that this badly affects fish, corals and shellfish.
But researchers have found that “closed system” fish farmers who recycle the same water are already keeping fish healthy at carbon dioxide concentrations higher than predicted for climate change.
And fish farming is the fastest growing branch of the food industry, increasing at more than 8% a year for the last 30 years.
Bernard Spragg, NZ