Project Details

Aquaculture of Opihi, Years 1 and 2

July 1, 2009

LocationFundingInstitutionPrincipal Investigator(s)
Hawaii $100,000 Oceanic Institute, University of Hawaii at Manoa Warren Dominy, Ph.D.
    Year 1
  1. Collect wild giant opihi and establish a broodstock holding facility.
  2. Develop an artificial feed for opihi starting with natural diets and including artificial feeds made for other benthic grazers. The purposes are to maintain the animals and to identify possibly important feed characteristics.
  3. Identify the best method of spawning opihi and develop larval rearing methods to increase survivorship. Current data suggest high mortality during larval settlement and metamorphosis.
  4. Year 2
  5. Continue testing feeds with adjusted nutritional profiles, with different attractant ingredients, and different methods of presentation. Begin identification of optimal nutrient and attractant levels by systematically varying each individually.
  6. Rate the flavor of cultured opihi with a panel of experienced opihi eaters. Besides taste, aquacultured opihi will be tested for texture and/or mouth feel.
  7. Work on sustaining the life cycle in culture. Focus on improving management practices. On-land growout systems will have to be recirculating.
  8. Transfer technology to motivated stakeholders via extensive, hands on extension and an industry manual summarizing the developed techniques for opihi aquaculture.