"The salmon farms in the far south of Australia, where icy winds roar in from Antarctica, seem an unlikely casualty of global warming.
But as tropical waters flow further south, ocean temperatures are rising even around the island state of Tasmania -- stressing fish and stunting their growth. That’s prompting companies like Huon Aquaculture Group Ltd. and Tassal Group Ltd. to find new ways to mitigate the impact of climate change.
Both belong to an industry and government partnership that’s selectively breeding fish to tolerate the warmer waters. Huon is experimenting with “fortress pens” to withstand wild weather so it can farm further offshore where the water is colder. It’s a further sign that agriculture in all its forms must adapt to survive human-induced climate change -- from breeding heat-tolerant cattle in Florida to growing salt-resistant crops in Egypt."
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