Assertion: blue catfish | /r/HasProperty | introduced into river
Facets:
value: in virginia
type: LOCATION
value: in the 1970s
type: TEMPORAL
value: intentionally
type: MANNER
Source sentences:
text: Blue catfish were intentionally introduced into rivers in Virginia in the 1970s, but have now become an invasive species that grows and breeds rapidly.
text: Introduced in several rivers, blue catfish have overcome the salinity barrier that was originally thought to prevent them from expanding in other rivers.
text: Blue catfish were introduced to several rivers, but have been able to spread as they do not seem to mind saltier waters, as scientists originally thought.