Pacific herring are schooling forage fish that support coastal food webs across the North Pacific. Their spawning runs make them a frequent signal in marine and estuarine eDNA projects.

The coypu, also known as nutria, is a semiaquatic rodent that can reshape marshes and waterways through grazing and burrowing. Its detections are relevant for invasive species surveillance.

Chinook salmon are the largest Pacific salmon and an important species for river, estuary, and coastal monitoring. Their eDNA can reveal habitat use across freshwater and marine life stages.

The brush rabbit is a western North American cottontail associated with dense shrubs and coastal scrub. eDNA detections can complement field observations in fragmented habitats.

Batrachochytrium dendrobatidis, often called Bd, is the amphibian chytrid fungus associated with chytridiomycosis. eDNA observations can help screen aquatic habitats for this pathogen.

Oncorhynchus includes Pacific salmon and trout, a group central to coldwater ecosystem monitoring. Genus-level detections can capture salmonid signals when species-level assignment is uncertain.

The California red-legged frog is a stream and wetland species native to California and northern Baja California. Its detections are useful for tracking habitat connectivity and threatened amphibian presence.

The North American beaver is a keystone wetland engineer whose dams change hydrology, sediment, and habitat structure. Its eDNA signal is useful in restoration and watershed monitoring.