Assertion: carp's introduction | /r/Causes | decline
Facets:
value: in native fishes
type: OTHER
value: through predation
type: CAUSE
value: through hybridization
type: MANNER
value: through competition
type: MANNER
Source sentences:
text: The reason that rainbows are on that database is that introduction of the species has caused declines in native fishes—through hybridization, predation, and competition—as well as spreading whirling disease.