Development of new organic culture techniques for native Hawaiian seaweeds 

Author: Dr. Albert G.J. Tacon

With renewed interest in identifying existing/ potential organic fertilizers and nutrient waste streams available in Hawaii, we would like to share the report by Dr. Albert G.J. Tacon from July 1, 2003 – August 30, 2004.

PROJECT OBJECTIVES

Objective 1: Identify and characterize existing/potential organic fertilizers and nutrient waste streams available within Hawaii which could be used as a source of nutrients for organic seaweed production.

Objective 2: Develop and evaluate the effect of different organic nutrient sources and nutrient dosage levels on the growth and development of the two target seaweed species under controlled culture conditions.

Objective 3: Develop and evaluate different culture techniques for the two target seaweed species that maximize nutrient recycling efficiency, water conservation, ecosystem stability, seaweed health, and output of marketable organic produce.

Objective 4: Develop and evaluate different post-harvest methods for epiphyte removal and control on the two target seaweed species.

Objective 5: Evaluate the effect of different organic nutrient sources and culture techniques on seaweed quality, including nutritional composition and potential food value.

Objective 6: Develop computer models for the cost-benefit of organic seaweed production using different organic nutrient sources and culture systems.

Objective 7: Determine the state, national, and global market and possible future market requirements and strategies for organically grown seaweeds.