Combined Culture of Mussel: A Tool for Providing Live Feed and Improving Environmental Quality for Lobster Aquaculture in Vietnam

摘要

THE survival rate of lobsters fed on cultured mussel was higher than those traditionally fed on fresh fish (by-catch), while the growth rate of lobsters was the same for both feeding systems (Fig. 2). However, lobsters fed on mussel were healthier than those fed by-catch. The authors estimated that if the lobsters were raised for 18 months (instead of 14 months in the current experiment), total weight of lobsters fed on mussel would be 100 kg/cage of 100 individuals. This figure was almost double thetotal weight of lobsters fed by-catch, which was only 60 kg/cage of 100 individuals at the same site the previous year (2002). This indicates that live mussel was a good feed for lobsters. If this system of mussel and lobster co-culture was adopted, itwould play an important role in reducing the demand for by-catch for feeding lobsters and also have the beneficial effects of removing organic pollutants (uneaten and waste feed and nutrient excretions) from the surrounding water.