Is tilapia a harmful alien species?

Tilapia is a harmful alien species. Tilapia is adaptable, omnivorous, fast growing, fertile, territorial, and has the behavior of protecting young, which is a great threat to local fish.

Tilapia, commonly known as: African crucian carp, non-crucian carp, Vietnamese fish, Nanyang crucian carp and so on. At first, it refers to the non-crucian species in Mozambique: non-crucian species in Mozambique (scientific name: Oreochromis mossambicus), and now it is a general term for several cichlids such as non-crucian species and non-crucian species. English collectively refers to tilapia. At present, it is the focus of freshwater aquaculture in the world, and it is considered as one of the main sources of animal protein in the future. Usually live in fresh water, can also live in salt water with different salt content, and can also live in shallow water of lakes, rivers and ponds. Strong adaptability, can breed in small waters, even grow in rice fields, and has strong adaptability to water with less dissolved oxygen. Most tilapia are omnivorous and often eat plants and debris in the water.