Assertion: gizzard shad | /r/HasProperty | introduced into many lake and river systems
Facets:
value: because of relatively high abundance
type: CAUSE
value: because of their small size
type: CAUSE
Source sentences:
text: Gizzard shad were introduced into many lake and river systems as a source of food for game fish, such as walleye, bass, and trout, because of their small size and relatively high abundance.