Christian Science Monitor: On an early Friday morning, the wholesale fish market at Mumbais historic Sassoon Dock is in full, cacophonous swing. As fishermen unload their catch, local fish-sellers, restaurant cooks, and housewives swarm the slick wharf, haggling over their favorites salmon, pomfret, and king mackerel.
There are fewer takers for a new fish on the ice block the small, oily sardine. Until two decades ago, these fish were found only off the southwest coast of India, but warming seas have expanded their...