Gambierdiscus

Kauaʻi evidence

Claims remain limited to cited evidence; direct Kauaʻi occurrence is not inferred from statewide relevance unless explicitly stated.

Names and classification

Scientific name

Gambierdiscus spp.

Common names

Gambierdiscus

Family

Ostreopsidaceae

Order

Gonyaulacales

Record type

community_or_group

Kauaʻi occurrence and status

Kauaʻi occurrence

Hawaiʻi reef-fish toxin relevance; Kauaʻi records require local confirmation

Origin

Native/introduced status varies

Conservation status

High

Evidence date

2026-09-13

Evidence limits

Claims remain limited to cited evidence; direct Kauaʻi occurrence is not inferred from statewide relevance unless explicitly stated.

Habitat and ecology

Habitats

Reef macroalgae and benthic surfaces

Ecological role

dinoflagellate / Benthic dinoflagellates with Kauaʻi-relevant ecological, disease, food-web, or biosecurity pathway.

Food and resource needs

Reef macroalgae and benthic surfaces

Reproduction

Not specified in Microorganisms v1.0.0

Shelter

Reef macroalgae and benthic surfaces

Substrate

Reef macroalgae and benthic surfaces

Threats and conservation

Threats

Ciguatera toxin pathway; food-web and fisheries relevance

Conservation actions

High

Monitoring

Kauaʻi-specific abundance, seasonal dynamics, host specificity, strain identity, micro-site behavior, and specialist-source assertions should be expanded as source material is contributed.

Data gaps

Kauaʻi-specific abundance, seasonal dynamics, host specificity, strain identity, micro-site behavior, and specialist-source assertions should be expanded as source material is contributed.

Process and seasonal context

Seasonal timing

Not specified in Microorganisms v1.0.0

Seasonal description

Gambierdiscus is included because it is relevant to Kauaʻi conservation, agriculture, freshwater/reef function, disease ecology, biosecurity, or public environmental health.

Sources and further reading

• NOAA NCCOS — Hawaiian coral Symbiodinium data report