'They ate the shrimp, they even ate the crab': Thai fishers count the cost of a voracious invader

Huge numbers of blackchin tilapia, a fish native to west Africa, are wreaking havoc among Thailand's river ecosystems. Experts - and some chefs - are seeking sustainable solutionsThe menu at Kor-Tae seafood restaurant, in Thailand's Samut Prakan province, is filled with Thai classics - from tom yum talay, a fragrant hot and sour soup, to spicy larb salads. But the restaurant's chef is also experimenting with a more controversial ingredient: blackchin tilapia."People are hesitant, but once they try it - [they say] it's delicious," says owner Adisorn Jamsuksaward, who has been offering the non-native fish free of charge to friends who request it. Continue reading...