Assertion: cyanobacteria | /r/CapableOf | serve as important food supplies
Facets:
value: for invertebrates like water fleas
type: TRANSITIVE-OBJECT
Source sentences:
text: When sufficient light  which is often a limiting factor for growth  is available, blue-green algae form some of the densest blooms in arctic lakes and serve as important food supplies for invertebrates like water fleas.