Estuary / river mouth

Kauaʻi evidence

Classification/source support: SRC-HAB-007, SRC-HAB-009

Names and classification

Scientific name

Not applicable

Common names

Estuary / river mouth

Hawaiian names

Not assessed

Record type

habitat

Kauaʻi occurrence and status

Kauaʻi occurrence

Present

Origin

Native natural habitat

Conservation status

Not formally assessed

Evidence date

2026-09-13

Evidence limits

This record represents an operational habitat class, not every site-specific plant association or mapped polygon.

Habitat and ecology

Habitats

Estuary / river mouth

Food and resource needs

Not applicable

Reproduction

Not applicable

Shelter

Not applicable

Substrate

Mud, sand, gravel

Threats and conservation

Threats

Hydrologic alteration, sediment, pollution, invasive species, physical disturbance and climate variability can change habitat function.

Conservation actions

Protect habitat extent and connectivity, control invasive species and damaging disturbance, restore native structure/processes, and monitor condition.

Monitoring

Track extent, condition, hydrology/physical structure, native/alien composition, disturbance exposure and restoration response.

Data gaps

Exact islandwide area, condition and trend may vary by source layer and mapping scale.

Process and seasonal context

Seasonal timing

Year-round unless hydrologically seasonal

Seasonal description

Estuary / river mouth is a documented Kauaʻi habitat type in the freshwater & wetland system.

Place and watershed context

Habitat system

Freshwater & Wetland

Habitat class

natural

Moisture regime

Wet/coastal

Salinity regime

Brackish

Water regime

Tidal/river mixing

Vegetation structure

Open water/emergent edge

Sources and further reading

• https://www.fws.gov/refuge/hanalei
• https://cavereserve.org/