Bio-economic Evaluation of Sea Cucumber ( Apostichopus japonicas ) Cultured in Earthen Ponds

Sea cucumber ( Apostichopus japonicas ) industry was developed rapidly in north China in recently years. In this article, the main research is the economic income of sea cucumber culture. Net present value (NPV), internal rate of return (IRR) and discounted payback period were selected to evaluate the economic income of sea cucumber culture. The result shows that the income increased with the increasing pond size but the survival rate and income per unit decreased.