Biodiversity fears as human-bred hybrid fish integrate into Philippines lake

Escaped flowerhorn cichlids are causing concern for native species and about parasites capable of infecting humans

Escaped ornamental aquarium fish have integrated into a local ecosystem in the Philippines, but scientists say they may be threatening the native biodiversity of the lake.

Flowerhorn cichlids – human-bred hybrid fish prized for their bright-gold colour and prominent head humps – are believed to have escaped from breeding facilities into Lake Sampaloc, which sits in a volcanic crater, during a typhoon.