Assertion: perch's egg | /r/CapableOf | land in anoxic fine sediment
Facets:
value: including in weir pools
type: LOCATION
value: frequently
type: TEMPORAL
Source sentences:
text: In this era of flow regulation and flood curtailment by dams, which control the flood events that remove fine sediment, and chronic siltation from poor agricultural practices, the eggs may now frequently land in anoxic fine sediment and organic matter — including in weir pools — and fail to survive.