Thailand has netted more than 1.3 million kilograms of highly destructive blackchin tilapia fish, the government said Tuesday, as it battles to stamp out the invasive species.Shoals of blackchin tilapia, which can produce up to 500 young at a time, have been found in 19 Thai provinces, damaging ecosystems in rivers, swamps and canals by preying on small fish, shrimp and snail larvae.As well as the ecological impact, the government is worried about the effect on the kingdom’s crucial fish-farming industry.”From February to August 28, 1,332,000 kilograms of blackchin tilapia were caught —…