Invasive-algae control & herbivory restoration

Names and classification

Record type

intervention

Kauaʻi occurrence and status

Recorded state

Available, active, proposed or context-dependent

Conservation interventions

Action definition

Reduce nuisance/invasive algal dominance and support coral recovery where mechanisms are established

Mechanism of action

Targeted algae removal plus restoration/protection of native herbivory when appropriate

Prerequisites

Confirmed target algae; disposal plan; adequate water quality; herbivore protection

Implementation context

Site-specific reefs/lagoon habitats; not assumed transferable from Oʻahu methods without Kauaʻi validation

Expected outcomes

Reduced invasive algal cover and more space for native benthos/coral recruitment

Monitoring design

Target-algae cover; regrowth; herbivore density; coral recruitment; nutrients

Unintended consequences

Removal can be temporary if nutrients/herbivory drivers persist; urchin use requires ecological suitability

Implementation limits

Implementation status, cost and efficacy must be tied to a dated place/program record.

Sources and further reading

• https://www.fisheries.noaa.gov/national/habitat-conservation/restoring-coral-reefs

Connected Atlas records

• Wastewater & nutrient loading · Threats & Conservation
• Fishing pressure & herbivore depletion · Threats & Conservation
• Invasive marine algae & other marine invaders · Threats & Conservation