Refers to non-native organisms that cause harm to the environment, economy, or human health. Often used in ecological and policy contexts.
In that lake, invasive fish species are threatening the native species.
A law was enacted to prevent the spread of invasive species.
在来種 means native species, the opposite of 侵入種.
Compound of 侵入 (invasion) and 種 (species). A relatively modern term likely calqued from English 'invasive species'.