Assertion: jellyfish | /r/HasProperty | become dominant
Facets:
value: in an ecosystem
type: LOCATION
value: through overfishing
type: CAUSE
Source sentences:
text: Once jellyfish have become dominant in an ecosystem, for example through overfishing which removes predators of jellyfish larvae, there may be no obvious way for the previous balance to be restored: they eat fish eggs and juvenile fish, and compete with fish for food, preventing fish stocks from recovering.