Research Interests:
Biodiversity, systematics, biogeography – particularly systematics of marine macroalgae of New Zealand, (floristics, anatomy, morphology, ecology, life histories, phylogeny, biogeography, alien seaweeds, seaweed aquaculture, harvesting, restoration)
Co-Theme Leader, Te Mana o Rangitāhua.
Chair, Research Advisory Group, Coastal People: Southern Skies.
Deputy Chair, NZ Conservation Authority.