Assertion: asian carp | /r/HasProperty | introduced
Facets:
Source sentences:
text: They feed rapaciously on plankton, invertebrates, and detritus and thus often upset aquatic food webs in areas where they are introduced.
text: In Mexico, grass carp have been established for many years in at least two river systems, where they are considered invasive, but no other Asian carp are known to have been introduced.