More fish – surely we just need to farm the sea?

Stephen Hall -

Molluscs are the principal farmed marine product: giant clam exclosure, Solomon Islands. Photo by Mike McCoy

Some of the threats posed by climate change can appear rather esoteric or abstract. One of these is ocean acidification – it is not immediately obvious why we should care. A recent paper by Sara Cooley and colleagues give a good example of why the threat of changing ocean chemistry matters.

Plenty of Fish in the Sea?

Stephen Hall -

Investment in sustainable aquaculture essential, floating cages in the Philippines. Photo credit Wilfredo Yap

How many of us have been told at some point in our lives “don’t worry…there’s plenty more fish in the sea”?

This old proverb might comfort us for disappointment in love, but taken in its most literal sense, few people seem to believe it.

Fish – making a meal of it

Stephen Hall -

Fish and Rice; a daily staple for much of the world's poor. Photo credit Patrick Dugan

There is something circular about the idea of catching fish to use as feed for farmed fish, livestock, poultry and our pets. And with about one third of the global fish catch going in this direction, most of it destined for aquaculture, you might well ask whether growing the farmed fish to put in your supermarket has deprived a hungry or malnourished person of food.